{"source":"polymarket","id":"527570","ticker":"atp-arnaldi-tsitsip-2026-05-28","slug":"atp-arnaldi-tsitsip-2026-05-28","title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\n\nThis market will resolve to 'Matteo Arnaldi' if Matteo Arnaldi advances against Stefanos Tsitsipas.\n\nThis market will resolve to 'Stefanos Tsitsipas' if Stefanos Tsitsipas advances against Matteo Arnaldi.\n\nIf the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.\n\nIf the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.\n\nIf the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.\n\nThe primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","active":true,"closed":false,"start_date":"2026-05-26T16:39:58.712306Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":2789.335373,"volume_24hr":2789.335373,"volume_24h_change":null,"normalized_vol_24hr":21.81907081604004,"normalized_volume":14.369146347045898,"liquidity":65422.9834,"open_interest":2771.867273,"categories":["Sports"],"tags":[{"id":"864","slug":"tennis","label":"Tennis"},{"id":"1","slug":"sports","label":"Sports"},{"id":"100639","slug":"games","label":"Games"}],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Set 1 O/U 8.5","top_outcome_probability":0.8,"top_outcome_prob_24h_change":0.0,"top_outcome_volume_24h_change":0.0,"updated_at":"2026-05-27T01:45:17.219220Z","fetched_at":"2026-05-27T01:45:17.219220Z","added_at":"2026-05-26T16:38:19.011736Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28","chart_24h":[0.0,0.0,0.0,199.99,199.99,1460.1775030000001,1462.957503,1518.0857050000002,1528.0857050000002,2149.0401140000004,2455.625739,2733.382996,2733.382996,2789.335373],"markets":[{"source":"polymarket","id":"2362358","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28","question":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","group_item_title":null,"description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\n\nThis market will resolve to 'Matteo Arnaldi' if Matteo Arnaldi advances against Stefanos Tsitsipas.\n\nThis market will resolve to 'Stefanos Tsitsipas' if Stefanos Tsitsipas advances against Matteo Arnaldi.\n\nIf the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.\n\nIf the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.\n\nIf the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.\n\nThe primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Matteo Arnaldi","Stefanos Tsitsipas"],"outcome_prices":[0.375,0.625],"probability":0.375,"spread":0.01,"active":true,"closed":false,"start_date":"2026-05-26T16:27:50.424984Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":2789.335373,"volume_24hr":2789.335373,"prob_24h_change":-0.125,"volume_24h_change":2789.335373,"normalized_vol_24hr":24.379676818847656,"normalized_volume":18.468154907226562,"liquidity":25840.4544,"categories":["Sports"],"updated_at":"2026-05-27T01:30:55.095494Z","fetched_at":"2026-05-27T01:30:22.475747Z","added_at":"2026-05-26T16:38:19.116838Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.5,0.365,0.335,0.335,0.355,0.355,0.355,0.355,0.365,0.375,0.375,0.375]},{"source":"polymarket","id":"2363307","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-first-set-total-8pt5","question":"Arnaldi vs. Tsitsipas: Set 1 Games O/U 8.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Set 1 O/U 8.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to \"Under.\"\nAny first-set tiebreak counts as one (1) game toward the total.\nIf the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.\nResolution will be based on official Grand Slam results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.8,0.2],"probability":0.8,"spread":0.02,"active":true,"closed":false,"start_date":"2026-05-26T18:04:34.414065Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":1197.5409,"categories":["Sports"],"updated_at":"2026-05-27T01:45:31.724965Z","fetched_at":"2026-05-27T01:45:17.318601Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-first-set-total-8pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.8,0.8,0.8,0.8]},{"source":"polymarket","id":"2363305","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-set-totals-3pt5","question":"Matteo Arnaldi vs. Stefanos Tsitsipas: Total Sets O/U 3.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Total Sets: O/U 3.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of sets completed equals or exceeds 4. Otherwise, it will resolve to \"Under.\"\nA super tie breaker is considered as one (1) set for total set markets.\nIf the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.\nResolution will be based on official Grand Slam statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over 3.5","Under 3.5"],"outcome_prices":[0.64,0.36],"probability":0.64,"spread":0.02,"active":true,"closed":false,"start_date":"2026-05-26T18:07:15.646437Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0050000000000000044,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":2319.5573,"categories":["Sports"],"updated_at":"2026-05-26T20:08:13.735241Z","fetched_at":"2026-05-26T20:08:04.558757Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-set-totals-3pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.635,0.635,0.64]},{"source":"polymarket","id":"2363304","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-match-total-36pt5","question":"Arnaldi vs. Tsitsipas: Match O/U 36.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Match O/U 36.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed across all sets equals or exceeds 37. Otherwise, it will resolve to \"Under.\"\nAll tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.\nIf the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.\nResolution will be based on official Grand Slam statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.53,0.47],"probability":0.53,"spread":0.22,"active":true,"closed":false,"start_date":"2026-05-26T18:03:43.290084Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.030000000000000027,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":44.785,"categories":["Sports"],"updated_at":"2026-05-27T01:45:31.724965Z","fetched_at":"2026-05-27T01:45:17.318601Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-match-total-36pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.5,0.5,0.5,0.495,0.51,0.53]},{"source":"polymarket","id":"2363310","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-match-total-38pt5","question":"Arnaldi vs. Tsitsipas: Match O/U 38.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Match O/U 38.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed across all sets equals or exceeds 39. Otherwise, it will resolve to \"Under.\"\nAll tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.\nIf the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.\nResolution will be based on official Grand Slam statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.515,0.485],"probability":0.515,"spread":0.03,"active":true,"closed":false,"start_date":"2026-05-26T18:06:09.501995Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0050000000000000044,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":4056.7257,"categories":["Sports"],"updated_at":"2026-05-26T20:08:13.735241Z","fetched_at":"2026-05-26T20:08:04.558757Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-match-total-38pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.51,0.515,0.515]},{"source":"polymarket","id":"2362362","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-completed-match","question":"Roland Garros ATP: Completed Match: Matteo Arnaldi vs Stefanos Tsitsipas","group_item_title":"Completed Match","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET. This market will resolve to \"Yes\" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to \"No.\" If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve \"No.\" If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to \"No.\" The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Yes","No"],"outcome_prices":[0.5,0.5],"probability":0.5,"spread":1.0,"active":true,"closed":false,"start_date":"2026-05-26T16:29:25.899679Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"updated_at":"2026-05-26T21:18:28.380519Z","fetched_at":"2026-05-26T21:18:28.380519Z","added_at":"2026-05-26T16:38:19.116838Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-completed-match","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.5,0.505,0.505,0.5]},{"source":"polymarket","id":"2363311","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-first-set-total-9pt5","question":"Arnaldi vs. Tsitsipas: Set 1 Games O/U 9.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Set 1 O/U 9.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to \"Under.\"\nAny first-set tiebreak counts as one (1) game toward the total.\nIf the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.\nResolution will be based on official Grand Slam results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.5,0.495],"probability":0.5,"spread":1.0,"active":true,"closed":false,"start_date":"2026-05-26T18:04:12.112511Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"updated_at":"2026-05-26T21:18:28.380519Z","fetched_at":"2026-05-26T21:18:28.380519Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-first-set-total-9pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.5,0.5,0.5,0.5]},{"source":"polymarket","id":"2363313","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-match-total-40pt5","question":"Arnaldi vs. Tsitsipas: Match O/U 40.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Match O/U 40.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed across all sets equals or exceeds 41. Otherwise, it will resolve to \"Under.\"\nAll tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.\nIf the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.\nResolution will be based on official Grand Slam statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.5,0.5],"probability":0.5,"spread":1.0,"active":true,"closed":false,"start_date":"2026-05-26T18:06:26.436690Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":0.0,"categories":["Sports"],"updated_at":"2026-05-26T21:18:28.380519Z","fetched_at":"2026-05-26T21:18:28.380519Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-match-total-40pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.5,0.5,0.5,0.5]},{"source":"polymarket","id":"2363308","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-set-handicap-away-1pt5","question":"Set Handicap: Tsitsipas (-1.5) vs Arnaldi (+1.5)","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Set Handicap +/-1.5","description":"This market refers to the tennis match between Stefanos Tsitsipas and Matteo Arnaldi in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Tsitsipas\" if Stefanos Tsitsipas wins by 2 or more sets than Matteo Arnaldi, based on the final completed score. Otherwise, it will resolve to \"Arnaldi.\"\nIf the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.\nResolution will be based on official Grand Slam results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Tsitsipas","Arnaldi"],"outcome_prices":[0.48,0.52],"probability":0.48,"spread":0.02,"active":true,"closed":false,"start_date":"2026-05-26T18:08:11.153202Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.020000000000000018,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":12372.1238,"categories":["Sports"],"updated_at":"2026-05-27T00:36:44.470627Z","fetched_at":"2026-05-27T00:36:30.587492Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-set-handicap-away-1pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.5,0.5,0.495,0.485,0.48]},{"source":"polymarket","id":"2363306","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-first-set-winner-Arnaldi-vs-Tsitsipas","question":"Set 1 Winner: Arnaldi vs Tsitsipas","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Set 1 Winner","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to “Arnaldi” if Matteo Arnaldi wins the first set. It will resolve to “Tsitsipas” if Stefanos Tsitsipas wins the first set.\nIf the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50.\nIf the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.\nResolution will be based on official Grand Slam match statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Arnaldi","Tsitsipas"],"outcome_prices":[0.415,0.585],"probability":0.415,"spread":0.01,"active":true,"closed":false,"start_date":"2026-05-26T18:06:12.862849Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0050000000000000044,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":6125.8247,"categories":["Sports"],"updated_at":"2026-05-27T00:22:41.241140Z","fetched_at":"2026-05-27T00:22:21.291938Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-first-set-winner-Arnaldi-vs-Tsitsipas","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.41,0.405,0.41,0.415]},{"source":"polymarket","id":"2363315","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-first-set-total-10pt5","question":"Arnaldi vs. Tsitsipas: Set 1 Games O/U 10.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Set 1 O/U 10.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to \"Under.\"\nAny first-set tiebreak counts as one (1) game toward the total.\nIf the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.\nResolution will be based on official Grand Slam results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over","Under"],"outcome_prices":[0.295,0.705],"probability":0.295,"spread":0.03,"active":true,"closed":false,"start_date":"2026-05-26T18:09:04.389190Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.0050000000000000044,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":1387.4935,"categories":["Sports"],"updated_at":"2026-05-27T01:45:31.724965Z","fetched_at":"2026-05-27T01:45:17.318601Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-first-set-total-10pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.29,0.29,0.3,0.295,0.3,0.3,0.295,0.295,0.3,0.295,0.295]},{"source":"polymarket","id":"2363309","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-set-totals-4pt5","question":"Matteo Arnaldi vs. Stefanos Tsitsipas: Total Sets O/U 4.5","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Total Sets: O/U 4.5","description":"This market refers to the tennis match between Matteo Arnaldi and Stefanos Tsitsipas in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of sets completed equals or exceeds 5. Otherwise, it will resolve to \"Under.\"\nA super tie breaker is considered as one (1) set for total set markets.\nIf the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.\nResolution will be based on official Grand Slam statistics.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Over 4.5","Under 4.5"],"outcome_prices":[0.285,0.715],"probability":0.285,"spread":0.03,"active":true,"closed":false,"start_date":"2026-05-26T18:02:58.486814Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":0.009999999999999953,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":4071.5207,"categories":["Sports"],"updated_at":"2026-05-27T01:16:39.740960Z","fetched_at":"2026-05-27T01:16:25.875646Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-set-totals-4pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.275,0.275,0.28,0.285]},{"source":"polymarket","id":"2363314","event_id":"527570","slug":"atp-arnaldi-tsitsip-2026-05-28-set-handicap-away-2pt5","question":"Set Handicap: Tsitsipas (-2.5) vs Arnaldi (+2.5)","group_item_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas Set Handicap +/-2.5","description":"This market refers to the tennis match between Stefanos Tsitsipas and Matteo Arnaldi in the Roland Garros ATP, originally scheduled for May 28, 2026 at 5:00AM ET.\nThis market will resolve to \"Tsitsipas\" if Stefanos Tsitsipas wins by 3 or more sets than Matteo Arnaldi, based on the final completed score. Otherwise, it will resolve to \"Arnaldi.\"\nIf the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.\nResolution will be based on official Grand Slam results.","image":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","icon":"https://polymarket-upload.s3.us-east-2.amazonaws.com/atp-tour-b4390c4fb8.jpg","outcomes":["Tsitsipas","Arnaldi"],"outcome_prices":[0.255,0.745],"probability":0.255,"spread":0.01,"active":true,"closed":false,"start_date":"2026-05-26T18:04:03.355735Z","end_date":"2026-06-04T09:00:00Z","closed_time":null,"volume":0.0,"volume_24hr":0.0,"prob_24h_change":-0.245,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":null,"liquidity":3081.6671,"categories":["Sports"],"updated_at":"2026-05-27T01:16:39.740960Z","fetched_at":"2026-05-27T01:16:25.875646Z","added_at":"2026-05-26T18:03:32.697133Z","url":"https://polymarket.com/event/atp-arnaldi-tsitsip-2026-05-28/atp-arnaldi-tsitsip-2026-05-28-set-handicap-away-2pt5","event_title":"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas","chart_24h":[0.5,0.265,0.26,0.26,0.255]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/polymarket/527570","as_of":"2026-05-27T01:55:33.821310Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Polymarket): \"Roland Garros ATP: Matteo Arnaldi vs Stefanos Tsitsipas\" — top market at 38% probability across 13 outcomes","source_url":null}}