Sports09/21/2026@SportDesk
The US Open Women's Singles Final
Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center, Flushing Meadows, Queens, NY 11368, United StatesUnited States Tennis Association
Starts 09/11/2027 ESTIMATED 63% CONFIDENCEin 351 daysThe USTA has not published 2027 dates, so the day is derived from the ATP's 2027 calendar window of 29 August to 12 September, with the women's final on the second Saturday.^[1]
The women's singles final fills Arthur Ashe Stadium on the tournament's second Saturday, closing the American hard-court season. The ATP's 2027 calendar has the US Open running 29 August to 12 September.
0.73
Sports09/21/2026@SportDesk
The Wimbledon Ladies' Singles Final
Centre Court, All England Lawn Tennis and Croquet Club, Church Road, Wimbledon, London SW19 5AE, United KingdomAll England Lawn Tennis and Croquet Club
Starts 07/10/2027 SCHEDULED 85% CONFIDENCEin 288 daysFrom the All England Club's published 2027 dates, 28 June to 11 July 2027, with the ladies' singles final on the second Saturday as the order of play fixes it.^[1]
The ladies' singles final is played on Centre Court on the second Saturday of the Championships, for the Venus Rosewater Dish. The All England Club has the 2027 fortnight running 28 June to 11 July.
0.71
Sports09/21/2026@SportDesk
The US Open Men's Singles Final
Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center, Flushing Meadows, Queens, NY 11368, United StatesUnited States Tennis Association
Starts 09/12/2027 ESTIMATED 63% CONFIDENCEin 352 daysThe USTA has not published 2027 dates - usopen.org still serves the 2026 championships - so the day comes from the ATP's 2027 calendar, "August 29" to "September 12", with the men's final on the closing Sunday.^[1]
The season's last major ends under the lights of Arthur Ashe Stadium, the largest tennis arena in the world at roughly 23,000 seats. The ATP's 2027 calendar has the tournament running 29 August to 12 September, with the men's singles final on the closing Sunday.
0.70
Sports09/20/2026@OddsDesk
The 2027 NBA Finals Crown a Champion
NBA Headquarters, Olympic Tower, 645 Fifth Avenue, New York, NY, USA
Starts 06/03/2027 ESTIMATED 65% CONFIDENCEin 251 daysThe NBA has published only "June 2027" for the Finals; calendar listings put Game 1 on Thursday 3 June 2027, so that day is an estimate rather than a league-confirmed date. Kalshi's^[1] market expiry of 31 July 2027 is a settlement buffer, not the game date.
Kalshi
The 2026-27 NBA season ends with the Finals in June 2027. On 20 September 2026 Kalshi's futures board was a two-horse race: Oklahoma City and San Antonio were both priced around 21%, more than double Philadelphia at 9% and New York at 8%. The league has confirmed only the month, with Game 1 widely reported for 3 June.
0.66
Sports09/25/2026@SportDesk
The 2026 WNBA Finals Tip Off
WNBA
Starts 10/17/2026 7:30PM SCHEDULED 79% CONFIDENCEin 22 daysThe WNBA's^[1][3] 2026 key dates list "October 17 Finals Begin" and "October 31 Last Possible Date of Finals Games" ("ALL DATES ARE SUBJECT TO CHANGE"); NBC's schedule gives Game 1 at 3:30 p.m. ET.
Game 1 of the best-of-seven 2026 WNBA Finals, the first under the league's new labor deal, is set for Saturday 17 October on NBC, with a Game 7 if needed on 31 October.
0.66
Sports09/21/2026@SportDesk
The Australian Open Women's Singles Final
Rod Laver Arena, Melbourne Park, Olympic Boulevard, Melbourne VIC 3000, AustraliaTennis Australia
Starts 01/30/2027 SCHEDULED 83% CONFIDENCEin 127 daysTaken from the organiser's published 2027 window, "11 - 31 Jan 2027", with the women's singles final on the second Saturday as the schedule has fixed it for decades.^[1]
The women's singles final closes the Australian Open's second Saturday on Rod Laver Arena, a day before the men decide theirs. The winner lifts the Daphne Akhurst Memorial Cup.
0.66
Sports09/20/2026@SportDesk
2027 Pan American Games Open
National Stadium of PeruPanam Sports
07/23/2027 - 08/08/2027 SCHEDULED 78% CONFIDENCEin 301 daysWikipedia's^[1][2] article dates it "from 23 July to 8 August".
The 2027 Pan American Games, officially the XX Pan American Games and commonly known as Lima 2027, is an upcoming international multi-sport event governed by the Panam Sports Organization. It will be held from 23 July to 8 August in Lima, the capital of Peru, eight years after the city hosted the 2019 Pan American Games. The pin sits at National Stadium of Peru.
0.66
Sports09/20/2026@SportDesk
2030 Commonwealth Games Open
Narendra Modi StadiumCommonwealth Sport
10/01/2030 - 10/31/2030 ESTIMATED 65% CONFIDENCEin 4.0 yearsWikipedia's^[1][2] article dates it "scheduled to take place in Ahmedabad, Gujarat, India, in October 2030". Only the month is fixed so far, so the pin covers the whole of it.
The 2030 Commonwealth Games, officially known as the XXIV Commonwealth Games and commonly known as Amdavad 2030, is a planned multi-sport event scheduled to take place in Ahmedabad, Gujarat, India, in October 2030. This will be the second Commonwealth Games to be hosted in India, following the 2010 Games in Delhi, and the third in Asia. The article's infobox names Narendra Modi Stadium as the main venue, and its venue table lists the Sardar Vallabhbhai Patel Sports Enclave around it as the ceremonies venue, capacity 132,000.
0.65
Sports09/20/2026@OddsDesk
The 2026 F1 Constructors' Title Is Settled at the Abu Dhabi Grand Prix
Yas Marina Circuit, Yas Island, Abu Dhabi, United Arab Emirates
Starts 12/06/2026 SCHEDULED 80% CONFIDENCEin 72 daysThe circuit's own site and the Emirates News Agency both put the 2026 Abu Dhabi Grand Prix weekend at 3-6 December with the race on Sunday 6 December; Kalshi's^[1] market expires the next day.
Kalshi
Formula 1's first season under the 2026 rules ends with the Abu Dhabi Grand Prix at Yas Marina on Sunday 6 December 2026, the 24th and final round. On 20 September 2026 Kalshi priced the constructors' championship as all but over: Mercedes sat at 95-96%, with Ferrari, McLaren and Red Bull all at 1-2%.
0.65
Sports09/20/2026@OddsDesk
The 2026 World Series Opens on 23 October
Major League Baseball, 1271 Avenue of the Americas, New York, NY, USA
10/23/2026 - 10/31/2026 SCHEDULED 85% CONFIDENCEin 28 daysMLB.com^[2]'s own postseason schedule release fixes World Series Game 1 on Friday 23 October 2026 and a possible Game 7 on 31 October, so the pin runs across the scheduled window.
Kalshi
Major League Baseball's published postseason schedule puts World Series Game 1 on Friday 23 October 2026, with Game 7 on Saturday 31 October if the series goes the distance. On 20 September 2026 Kalshi's champion market had no runaway favourite: the Dodgers sat at 29%, Milwaukee at 16% and the Yankees at 10%.
0.65
Sports09/15/2026@BuildDesk
Mandalay Bay's Temporary Pool Hosts the ISL's First Grand Final in Las Vegas
Mandalay Bay Events Center, 3950 S Las Vegas Blvd, Las Vegas, NV 89119, USAInternational Swimming League
12/20/2019 - 12/21/2019 CONFIRMED 85% CONFIDENCE6.8 years agoSwimSwam and Wikipedia's^[3] 2019 International Swimming League article both confirm the Las Vegas Grand Final ran 20-21 December 2019 at Mandalay Bay.
Myrtha Pools installed a 25-meter, 1-million-liter competition pool inside the Mandalay Bay Events Center in seven days for the International Swimming League's inaugural Grand Final, held 20-21 December 2019.
0.65
Sports09/20/2026@OddsDesk
The 2027 Champions League Final Is Played in Madrid
Riyadh Air Metropolitano, Avenida de Luis Aragonés 4, 28022 Madrid, Spain
Starts 06/05/2027 SCHEDULED 85% CONFIDENCEin 253 daysUEFA.com^[2]'s own announcement names the Estadio Metropolitano as the 2027 final venue on 5 June 2027, and Kalshi's^[1] market expires that evening.
Kalshi
UEFA has awarded the 2027 Champions League final to the Riyadh Air Metropolitano in Madrid on 5 June 2027, the stadium's second final after 2019. On 20 September 2026 Kalshi's winner market made Barcelona the favourite at about 25%, ahead of Bayern Munich, Arsenal and Real Madrid on 14% and PSG on 12%.
0.65

The WTA's 1 July 2026 release says "the 2026 WTA Finals will be held at the Indian Wells Tennis Garden in Indian Wells, California from November 8-15".^[1]

Start: Nov 8, 202675% CONFIDENCEfrom the source
End: Nov 15, 202675% CONFIDENCEfrom the source

The 2026 WTA Finals Are Played at Indian Wells

The season-ending championship for the top eight singles players and doubles teams moves from Riyadh to the Indian Wells Tennis Garden in California for 8-15 November, after the WTA ended its Saudi hosting deal a year early.

The 2026 WTA Finals will be played at the Indian Wells Tennis Garden in California from 8 to 15 November, the WTA announced on 1 July 2026^[1]
The tournament brings together the top eight singles players and doubles teams from the season's race^[1]
It had been due in Riyadh as the last year of a three-year deal with Saudi Arabia; in a joint statement, the WTA and the Saudi Tennis Federation said the WTA asked to move the event and both agreed to end the hosting arrangement^[3]
Elena Rybakina won the 2025 title in Riyadh^[3]
Prize money is listed at $15.5 million^[2]

@SportDesk

References 378% CONFIDENCE

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]75%
wtatennis.com/news/4528823/wta-announces-indian-wells-as-host-of-the-2026-wta-finals
wtatennis.com· Posted Sep 25, 2026· Starts Nov 8, 2026 ✓· Ends Nov 15, 2026 ✓· 37% of score
The WTA's 1 July 2026 release says "the 2026 WTA Finals will be held at the Indian Wells Tennis Garden in Indian Wells, California from November 8-15".
[2]75%
2026 WTA Finals (Wikipedia)
en.wikipedia.org· Added Sep 25, 2026· 37% of score
Scheduled for November 8-15, 2026 at the Indian Wells Tennis Garden; 55th singles and 50th doubles edition; $15,500,000 prize money; originally planned for Riyadh on November 7-14.^[1]
[3]85%
WTA Finals: Indian Wells to host 2026 showpiece after women's tour ends deal with Saudi Arabia (Sky Sports)
skysports.com· Published Jul 1, 2026· 26% of score
The Finals had been due in Riyadh to conclude a three-year deal; joint WTA and Saudi Tennis Federation statement that the WTA asked to move the 2026 event and the two agreed to end the hosting arrangement; Elena Rybakina won the 2025 title in Riyadh.^[1]

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1The 2026 WTA Finals Are Played at Indian Wells

Sports09/21/2026@SportDesk
The US Open Women's Singles Final
Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center, Flushing Meadows, Queens, NY 11368, United StatesUnited States Tennis Association
Starts 09/11/2027 ESTIMATED 63% CONFIDENCEin 351 daysThe USTA has not published 2027 dates, so the day is derived from the ATP's 2027 calendar window of 29 August to 12 September, with the women's final on the second Saturday.^[1]
The women's singles final fills Arthur Ashe Stadium on the tournament's second Saturday, closing the American hard-court season. The ATP's 2027 calendar has the US Open running 29 August to 12 September.
0.73
Sports09/21/2026@SportDesk
The Wimbledon Ladies' Singles Final
Centre Court, All England Lawn Tennis and Croquet Club, Church Road, Wimbledon, London SW19 5AE, United KingdomAll England Lawn Tennis and Croquet Club
Starts 07/10/2027 SCHEDULED 85% CONFIDENCEin 288 daysFrom the All England Club's published 2027 dates, 28 June to 11 July 2027, with the ladies' singles final on the second Saturday as the order of play fixes it.^[1]
The ladies' singles final is played on Centre Court on the second Saturday of the Championships, for the Venus Rosewater Dish. The All England Club has the 2027 fortnight running 28 June to 11 July.
0.71
Sports09/21/2026@SportDesk
The US Open Men's Singles Final
Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center, Flushing Meadows, Queens, NY 11368, United StatesUnited States Tennis Association
Starts 09/12/2027 ESTIMATED 63% CONFIDENCEin 352 daysThe USTA has not published 2027 dates - usopen.org still serves the 2026 championships - so the day comes from the ATP's 2027 calendar, "August 29" to "September 12", with the men's final on the closing Sunday.^[1]
The season's last major ends under the lights of Arthur Ashe Stadium, the largest tennis arena in the world at roughly 23,000 seats. The ATP's 2027 calendar has the tournament running 29 August to 12 September, with the men's singles final on the closing Sunday.
0.70
Sports09/20/2026@OddsDesk
The 2027 NBA Finals Crown a Champion
NBA Headquarters, Olympic Tower, 645 Fifth Avenue, New York, NY, USA
Starts 06/03/2027 ESTIMATED 65% CONFIDENCEin 251 daysThe NBA has published only "June 2027" for the Finals; calendar listings put Game 1 on Thursday 3 June 2027, so that day is an estimate rather than a league-confirmed date. Kalshi's^[1] market expiry of 31 July 2027 is a settlement buffer, not the game date.
Kalshi
The 2026-27 NBA season ends with the Finals in June 2027. On 20 September 2026 Kalshi's futures board was a two-horse race: Oklahoma City and San Antonio were both priced around 21%, more than double Philadelphia at 9% and New York at 8%. The league has confirmed only the month, with Game 1 widely reported for 3 June.
0.66
Sports09/25/2026@SportDesk
The 2026 WNBA Finals Tip Off
WNBA
Starts 10/17/2026 7:30PM SCHEDULED 79% CONFIDENCEin 22 daysThe WNBA's^[1][3] 2026 key dates list "October 17 Finals Begin" and "October 31 Last Possible Date of Finals Games" ("ALL DATES ARE SUBJECT TO CHANGE"); NBC's schedule gives Game 1 at 3:30 p.m. ET.
Game 1 of the best-of-seven 2026 WNBA Finals, the first under the league's new labor deal, is set for Saturday 17 October on NBC, with a Game 7 if needed on 31 October.
0.66
Sports09/21/2026@SportDesk
The Australian Open Women's Singles Final
Rod Laver Arena, Melbourne Park, Olympic Boulevard, Melbourne VIC 3000, AustraliaTennis Australia
Starts 01/30/2027 SCHEDULED 83% CONFIDENCEin 127 daysTaken from the organiser's published 2027 window, "11 - 31 Jan 2027", with the women's singles final on the second Saturday as the schedule has fixed it for decades.^[1]
The women's singles final closes the Australian Open's second Saturday on Rod Laver Arena, a day before the men decide theirs. The winner lifts the Daphne Akhurst Memorial Cup.
0.66
Sports09/20/2026@SportDesk
2027 Pan American Games Open
National Stadium of PeruPanam Sports
07/23/2027 - 08/08/2027 SCHEDULED 78% CONFIDENCEin 301 daysWikipedia's^[1][2] article dates it "from 23 July to 8 August".
The 2027 Pan American Games, officially the XX Pan American Games and commonly known as Lima 2027, is an upcoming international multi-sport event governed by the Panam Sports Organization. It will be held from 23 July to 8 August in Lima, the capital of Peru, eight years after the city hosted the 2019 Pan American Games. The pin sits at National Stadium of Peru.
0.66
Sports09/20/2026@SportDesk
2030 Commonwealth Games Open
Narendra Modi StadiumCommonwealth Sport
10/01/2030 - 10/31/2030 ESTIMATED 65% CONFIDENCEin 4.0 yearsWikipedia's^[1][2] article dates it "scheduled to take place in Ahmedabad, Gujarat, India, in October 2030". Only the month is fixed so far, so the pin covers the whole of it.
The 2030 Commonwealth Games, officially known as the XXIV Commonwealth Games and commonly known as Amdavad 2030, is a planned multi-sport event scheduled to take place in Ahmedabad, Gujarat, India, in October 2030. This will be the second Commonwealth Games to be hosted in India, following the 2010 Games in Delhi, and the third in Asia. The article's infobox names Narendra Modi Stadium as the main venue, and its venue table lists the Sardar Vallabhbhai Patel Sports Enclave around it as the ceremonies venue, capacity 132,000.
0.65
Sports09/20/2026@OddsDesk
The 2026 F1 Constructors' Title Is Settled at the Abu Dhabi Grand Prix
Yas Marina Circuit, Yas Island, Abu Dhabi, United Arab Emirates
Starts 12/06/2026 SCHEDULED 80% CONFIDENCEin 72 daysThe circuit's own site and the Emirates News Agency both put the 2026 Abu Dhabi Grand Prix weekend at 3-6 December with the race on Sunday 6 December; Kalshi's^[1] market expires the next day.
Kalshi
Formula 1's first season under the 2026 rules ends with the Abu Dhabi Grand Prix at Yas Marina on Sunday 6 December 2026, the 24th and final round. On 20 September 2026 Kalshi priced the constructors' championship as all but over: Mercedes sat at 95-96%, with Ferrari, McLaren and Red Bull all at 1-2%.
0.65
Sports09/20/2026@OddsDesk
The 2026 World Series Opens on 23 October
Major League Baseball, 1271 Avenue of the Americas, New York, NY, USA
10/23/2026 - 10/31/2026 SCHEDULED 85% CONFIDENCEin 28 daysMLB.com^[2]'s own postseason schedule release fixes World Series Game 1 on Friday 23 October 2026 and a possible Game 7 on 31 October, so the pin runs across the scheduled window.
Kalshi
Major League Baseball's published postseason schedule puts World Series Game 1 on Friday 23 October 2026, with Game 7 on Saturday 31 October if the series goes the distance. On 20 September 2026 Kalshi's champion market had no runaway favourite: the Dodgers sat at 29%, Milwaukee at 16% and the Yankees at 10%.
0.65
Sports09/15/2026@BuildDesk
Mandalay Bay's Temporary Pool Hosts the ISL's First Grand Final in Las Vegas
Mandalay Bay Events Center, 3950 S Las Vegas Blvd, Las Vegas, NV 89119, USAInternational Swimming League
12/20/2019 - 12/21/2019 CONFIRMED 85% CONFIDENCE6.8 years agoSwimSwam and Wikipedia's^[3] 2019 International Swimming League article both confirm the Las Vegas Grand Final ran 20-21 December 2019 at Mandalay Bay.
Myrtha Pools installed a 25-meter, 1-million-liter competition pool inside the Mandalay Bay Events Center in seven days for the International Swimming League's inaugural Grand Final, held 20-21 December 2019.
0.65
Sports09/20/2026@OddsDesk
The 2027 Champions League Final Is Played in Madrid
Riyadh Air Metropolitano, Avenida de Luis Aragonés 4, 28022 Madrid, Spain
Starts 06/05/2027 SCHEDULED 85% CONFIDENCEin 253 daysUEFA.com^[2]'s own announcement names the Estadio Metropolitano as the 2027 final venue on 5 June 2027, and Kalshi's^[1] market expires that evening.
Kalshi
UEFA has awarded the 2027 Champions League final to the Riyadh Air Metropolitano in Madrid on 5 June 2027, the stadium's second final after 2019. On 20 September 2026 Kalshi's winner market made Barcelona the favourite at about 25%, ahead of Bayern Munich, Arsenal and Real Madrid on 14% and PSG on 12%.
0.65

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