TOTAL VOLUME:
$134.2b
24H VOL:
$126,590,312
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,439,516,703
404,175
Markets across
30,277
events
MATCHED EVENTS:
2,685
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
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Aryna Sabalenka
all
2 markets
Kalshi
Polymarket
consensus
News
Positive
Negative
Neutral
Hover marker for details
Vol.
·
Resolved Aug 31, 2026
Closed: Aug 31, 1:12 PM EST
Kalshi
US Open WTA: Aryna Sabalenka vs Camila Osorio
US Open WTA: Aryna Sabalenka vs Camila Osorio Set Handicap +/-1.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 1 Winner
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 2 Winner
US Open WTA: Aryna Sabalenka vs Camila Osorio Game Spread +/-6.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Match O/U 21.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Total Sets: O/U 2.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Match O/U 22.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 1 O/U 8.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 2 O/U 8.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 1 O/U 9.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 2 O/U 9.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 2 O/U 10.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Set 1 O/U 10.5
US Open WTA: Aryna Sabalenka vs Camila Osorio Match O/U 23.5
Intro
This market tracks the outcome of the US Open WTA tennis match between Aryna Sabalenka and Camila Osorio. The aggregated consensus probability for the leading outcome stands at 100.0%. Data is drawn from Polymarket, Limitless, and Kalshi, with resolution based on official statistics from the WTA Tour and Grand Slam event organizers. Watch for updates as the match approaches its scheduled date on September 6, 2026.
PredictionHero - Resolution Divergence Alerts (RDA)
Unified Resolution Criteria (Consistent across platforms)
All platforms use the same core resolution logic based on official WTA Tour statistics, with consistent handling of cancellations, walkovers, and incomplete matches.Primary resolution logic: Official statistics from the WTA Tour and Grand Slam event organizersCore resolution logic:
- Match winner markets resolve to the player who advances, with 50-50 for cancellations, walkovers, or incomplete matches
- Total games and set games markets resolve based on completed games, with 50-50 for cancellations or incomplete matches unless outcome is already determined
- Game spread and set handicap markets resolve based on final completed score, with 50-50 for cancellations, walkovers, or incomplete matches unless outcome is already determined
Edge cases & clarifications:
- Walkover: Resolves to 50-50 for all markets unless the outcome was already unconditionally determined by completed play
- Match not completed: Resolves to 50-50 for all markets unless the outcome was already unconditionally determined by completed play
- Cancellation: Resolves to 50-50 for all markets
Polymarket
This market refers to the tennis match between Aryna Sabalenka and Camila Osorio in the US Open WTA, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Aryna Sabalenka' if Aryna Sabalenka advances against Camila Osorio. This market will resolve to 'Camila Osorio' if Camila Osorio advances against Aryna Sabalenka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If 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. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Kalshi
If Aryna Sabalenka wins the Sabalenka vs Osorio professional tennis match in the 2026 US Open Women Singles Round Of 128 after a ball has been played, then the market resolves to Yes. If Camila Osorio wins the Sabalenka vs Osorio professional tennis match in the 2026 US Open Women Singles Round Of 128 after a ball has been played, then the market resolves to Yes.
Limitless
This market refers to the tennis match between Aryna Sabalenka and Camila Osorio in the WTA US Open, originally scheduled for August 30, 2026 at 15:00 UTC. This market will resolve to "YES" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "NO." All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total. If 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.
