{"source":"kalshi","id":"KXATP1RANK-26DEC31","ticker":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31","title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","description":null,"image":null,"icon":null,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":null,"volume":37539.55,"volume_24hr":4734.64,"volume_24h_change":null,"normalized_vol_24hr":25.419658660888672,"normalized_volume":30.574831008911133,"liquidity":null,"open_interest":15241.11,"categories":["Sports"],"tags":[],"synthetic":false,"is_group":false,"group_key":null,"parent_event_id":null,"probability":null,"spread":null,"top_outcome":"Jannik Sinner","top_outcome_probability":0.81,"top_outcome_prob_24h_change":-0.06999999999999995,"top_outcome_volume_24h_change":1735.6200000000001,"updated_at":"2026-08-21T19:46:06.371641Z","fetched_at":"2026-08-21T19:46:06.371641Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","chart_24h":[148.92,230.82,421.29,478.45,847.27,846.79,3266.9500000000003,4422.49,4512.49,4515.49,4460.89,4406.29,4734.64],"markets":[{"source":"kalshi","id":"KXATP1RANK-26DEC31-JSIN","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-JSIN","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Jannik Sinner","description":"If Jannik Sinner is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.81,0.18999999999999995],"probability":0.81,"spread":0.029999999999999916,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":9386.79,"volume_24hr":1884.22,"prob_24h_change":-0.06999999999999995,"volume_24h_change":1735.6200000000001,"normalized_vol_24hr":22.278202056884766,"normalized_volume":26.04668426513672,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T19:50:14.712568Z","fetched_at":"2026-08-21T19:46:06.910266Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.88,0.86,0.94,0.94,0.86,0.86,0.86,0.86,0.86,0.86,0.86,0.86,0.86,0.86,0.86,0.86,0.86,0.78,0.85,0.82,0.82,0.82,0.82,0.82,0.82,0.81]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-AZVE","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-AZVE","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Alexander Zverev","description":"If Alexander Zverev is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.15,0.85],"probability":0.15,"spread":0.03,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":9878.28,"volume_24hr":2158.07,"prob_24h_change":0.09999999999999999,"volume_24h_change":1857.91,"normalized_vol_24hr":23.08671760559082,"normalized_volume":26.338109970092773,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T19:50:14.712568Z","fetched_at":"2026-08-21T19:46:06.910266Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.05,0.05,0.05,0.05,0.05,0.05,0.05,0.05,0.05,0.05,0.05,0.05,0.05,0.2,0.21,0.16,0.16,0.16,0.16,0.16,0.16,0.15]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-CALC","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-CALC","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Carlos Alcaraz","description":"If Carlos Alcaraz is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.06,0.94],"probability":0.06,"spread":0.06,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":15777.37,"volume_24hr":692.35,"prob_24h_change":0.009999999999999995,"volume_24h_change":692.19,"normalized_vol_24hr":16.760595321655273,"normalized_volume":29.0876407623291,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T19:50:14.712568Z","fetched_at":"2026-08-21T19:46:06.910266Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.05,0.05,0.05,0.05,0.07,0.07,0.05,0.05,0.06]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-ABUB","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-ABUB","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Alexander Bublik","description":"If Alexander Bublik is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.09,0.91],"probability":0.09,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":486.04,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":11.921436309814453,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T13:30:26.033966Z","fetched_at":"2026-08-20T12:40:17.822567Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.09,0.09]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-CRUU","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-CRUU","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Casper Ruud","description":"If Casper Ruud is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.04,0.96],"probability":0.04,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":2.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":0.3757234513759613,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-20T22:52:03.236147Z","fetched_at":"2026-07-27T21:43:58.231117Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.04,0.04]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-LMUS","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-LMUS","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Lorenzo Musetti","description":"If Lorenzo Musetti is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.04,0.96],"probability":0.04,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":2.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":0.3757234513759613,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T11:25:32.256038Z","fetched_at":"2026-07-09T11:52:23.614433Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.04,0.04]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-FAUG","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-FAUG","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Felix Auger-Aliassime","description":"If Felix Auger-Aliassime is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.02,0.98],"probability":0.02,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":2.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":0.3757234513759613,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T11:25:32.256038Z","fetched_at":"2026-07-09T11:52:23.614433Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.02,0.02]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-ADEM","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-ADEM","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Alex de Minaur","description":"If Alex de Minaur is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":381.54,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":11.009077072143555,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T08:50:19.756462Z","fetched_at":"2026-08-14T06:38:28.319430Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.01,0.01]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-BSHE","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-BSHE","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Ben Shelton","description":"If Ben Shelton is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":2.0,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":0.3757234513759613,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T16:49:32.006886Z","fetched_at":"2026-06-02T14:47:11.905148Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.01,0.01]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-DMED","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-DMED","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Daniil Medvedev","description":"If Daniil Medvedev is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":1205.42,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":15.672370910644531,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T13:30:26.033966Z","fetched_at":"2026-08-20T12:40:17.822567Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.01,0.01]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-NDJO","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-NDJO","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Novak Djokovic","description":"If Novak Djokovic is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":397.03,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":11.156535148620605,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T13:30:26.033966Z","fetched_at":"2026-08-20T12:40:17.822567Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.01,0.01]},{"source":"kalshi","id":"KXATP1RANK-26DEC31-TFRI","event_id":"KXATP1RANK-26DEC31","slug":"KXATP1RANK-26DEC31-TFRI","question":"Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?","group_item_title":"Taylor Fritz","description":"If Taylor Fritz is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.\n\n---\n\nFor the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.\n\nKalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.","image":null,"icon":null,"outcomes":["Yes","No"],"outcome_prices":[0.01,0.99],"probability":0.01,"spread":0.01,"active":true,"closed":false,"start_date":"2026-03-02T15:00:00Z","end_date":"2027-01-07T17:00:00Z","closed_time":"2026-12-31T19:00:00Z","volume":19.08,"volume_24hr":0.0,"prob_24h_change":0.0,"volume_24h_change":0.0,"normalized_vol_24hr":null,"normalized_volume":2.8011868000030518,"liquidity":null,"categories":["Sports"],"countries":[],"updated_at":"2026-08-21T13:30:26.033966Z","fetched_at":"2026-08-20T12:40:17.822567Z","added_at":null,"url":"https://kalshi.com/markets/kxatp1rank/atp-1-ranked-mens-singles-player-on-dec-31-2026/kxatp1rank-26dec31","event_title":"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?","chart_24h":[0.01,0.01]}],"_meta":{"attribution":"pdata.world — aggregated prediction-market data across 8 platforms","canonical_url":"https://pdata.world/events/kalshi/KXATP1RANK-26DEC31","as_of":"2026-08-21T19:58:07.628069Z","docs":"https://api.pdata.world/docs","cite_as":"According to pdata.world (tracking Kalshi): \"ATP #1 Ranked Men's Singles Player on Dec 31, 2026?\" — top market at 15% probability across 12 outcomes","source_url":null}}