TOTAL VOLUME:

$134.1b

24H VOL:

$133,388,117

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,436,095,462

405,232

Markets across

30,526

events

MATCHED EVENTS:

2,693

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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US Open 2026: To Reach Quarterfinals (Women's Singles)
polymarket
kalshi

US Open 2026: To Reach Quarterfinals (Women's Singles)

Volume:
$98,686

Jessica Pegula

all

2 markets

Kalshi

Polymarket

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 8, 2026

Closed: Sep 6, 9:29 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Jessica Pegula

View
100%
32%
Yes 100¢No 0¢
100¢
N/A
$5,439
N/A
N/A
$3,637
Settled
Yes
polymarket

Jessica Pegula

100%
27%
Yes 100¢No 0¢
19¢
N/A
$2,263
N/A
N/A
N/A
Settled
Yes
kalshi

Elena Rybakina

100%
42%
Yes 100¢No 0¢
100¢
N/A
$2,465
N/A
N/A
$2,377
Settled
Yes
polymarket

Elena Rybakina

100%
44%
Yes 100¢No 0¢
1¢
N/A
$780
N/A
N/A
N/A
Settled
Yes
kalshi

Emma Navarro

100%
50%
Yes 100¢No 0¢
100¢
N/A
$2,401
N/A
N/A
$2,178
Settled
Yes
polymarket

Emma Navarro

100%
45%
Yes 100¢No 0¢
19¢
N/A
$318
N/A
N/A
N/A
Settled
Yes
kalshi

Coco Gauff

100%
28%
Yes 100¢No 0¢
100¢
N/A
$2,241
N/A
N/A
$2,049
Settled
Yes
polymarket

Coco Gauff

100%
30%
Yes 100¢No 0¢
1¢
N/A
$63
N/A
N/A
N/A
Settled
Yes
kalshi

Linda Noskova

100%
43%
Yes 100¢No 0¢
100¢
N/A
$1,038
N/A
N/A
$950
Settled
Yes
polymarket

Linda Noskova

100%
56%
Yes 100¢No 0¢
19¢
N/A
$381
N/A
N/A
N/A
Settled
Yes
polymarket

Aryna Sabalenka

100%
14%
Yes 100¢No 0¢
44¢
N/A
$515
N/A
N/A
N/A
Settled
Yes
kalshi

Aryna Sabalenka

100%
45%
Yes 100¢No 0¢
100¢
N/A
$275
N/A
N/A
$240
Settled
Yes
kalshi

Mirra Andreeva

100%
Yes 100¢No 0¢
100¢
N/A
$378
N/A
N/A
$316
Settled
Yes
polymarket

Mirra Andreeva

100%
16%
Yes 100¢No 0¢
19¢
N/A
$238
N/A
N/A
N/A
Settled
Yes
kalshi

Qinwen Zheng

100%
74%
Yes 100¢No 0¢
100¢
N/A
$225
N/A
N/A
$103
Settled
Yes
polymarket

Naomi Osaka

0%
Yes 0¢No 100¢
—
N/A
$35,690
N/A
N/A
N/A
Settled
No
kalshi

Naomi Osaka

0%
46%
Yes 0¢No 100¢
100¢
N/A
$3,033
N/A
N/A
$2,438
Settled
No
kalshi

Alexandra Eala

0%
Yes 0¢No 100¢
100¢
N/A
$14,656
N/A
N/A
$10,417
Settled
No
polymarket

Alexandra Eala

0%
1%
Yes 0¢No 100¢
—
N/A
$4,264
N/A
N/A
N/A
Settled
No
kalshi

Iga Swiatek

0%
Yes 0¢No 100¢
100¢
N/A
$5,219
N/A
N/A
$5,029
Settled
No
polymarket

Iga Swiatek

0%
Yes 0¢No 100¢
—
N/A
$1,026
N/A
N/A
N/A
Settled
No
kalshi

Karolina Muchova

0%
Yes 0¢No 100¢
100¢
N/A
$2,558
N/A
N/A
$2,413
Settled
No
polymarket

Karolina Muchova

0%
4%
Yes 0¢No 100¢
—
N/A
$460
N/A
N/A
N/A
Settled
No
polymarket

Ann Li

0%
Yes 0¢No 100¢
—
N/A
$2,076
N/A
N/A
N/A
Settled
No
polymarket

Venus Williams

0%
1%
Yes 0¢No 100¢
—
N/A
$1,850
N/A
N/A
N/A
Settled
No
Total markets: 25 of 64

Description

This event group tracks whether specific tennis players will reach the quarterfinals in the Women's Singles draw at the 2026 US Open. Markets exist on multiple platforms with varying player lists and resolution rules.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All platforms use the same core criteria: player must officially reach quarterfinals per USTA rules, with consistent "No" outcomes for elimination or tournament disruption.Primary resolution logic: Official announcements from the USTA and WTA, supported by consensus from credible news sources

Core resolution logic:

  • Market resolves to "Yes" if the listed player is among the official quarterfinalists in the 2026 US Open Women's Singles draw
  • Market resolves to "No" if the player is eliminated before quarterfinals or if the tournament is canceled/postponed with no official quarterfinal confirmation by September 27, 11:59 PM ET
  • Resolution source priority: USTA official announcements > WTA official announcements > consensus of major credible news outlets (e.g., ESPN, BBC Sport, Tennis Gazette)

Edge cases & clarifications:

  • Tournament Cancellation: If the US Open is canceled or postponed beyond September 27 with no quarterfinal confirmation, all markets resolve to "No"
  • Player Withdrawal After Qualifying: If a player qualifies for quarterfinals but withdraws before the match begins, the market still resolves to "Yes" as they officially reached the round
  • Injury During Match: If a player is leading and must retire due to injury during a quarterfinal match, the market resolves to "Yes" as they officially advanced to that stage
Timing: Resolution occurs after official quarterfinal qualification is confirmed by USTA/WTA, typically within 24 hours of match completion, with absolute deadline of September 27, 11:59 PM ET for any unresolved marketsOur PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

This market will resolve to "Yes" if the listed player clinches a spot in the Quarterfinals at the 2026 US Open per US Open rules. Otherwise, the associated market will resolve to "No". If at any point it becomes impossible for the listed player to clinch a spot in the Quarterfinals at the 2026 US Open (e.g. the player is eliminated), the associated market will resolve to "No". If the 2026 US Open is cancelled, postponed after September 27, 11:59 PM ET, or the players that qualified for the Quarterfinals have not been officially confirmed by the USTA within that timeframe, this market will resolve to "No". The resolution source for this market will be official information from the USTA and WTA; however, a consensus of credible reporting may also be used.

Kalshi

If Iga Swiatek qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Aryna Sabalenka qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Coco Gauff qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Mirra Andreeva qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Elena Rybakina qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Elina Svitolina qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Qinwen Zheng qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Amanda Anisimova qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Madison Keys qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Jasmine Paolini qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Iva Jovic qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Karolina Muchova qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Jessica Pegula qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Barbora Krejcikova qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Emma Navarro qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Naomi Osaka qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Paula Badosa qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Victoria Mboko qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Marta Kostyuk qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Jelena Ostapenko qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Maja Chwalinska qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Maria Sakkari qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Linda Noskova qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes. If Alexandra Eala qualifies for the Quarterfinals at the 2026 US Open Women Singles tennis tournament, then the market resolves to Yes.