TOTAL VOLUME:

$134b

24H VOL:

$107,351,958

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

Markets across

30,097

events

MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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US Open WTA: Maria Sakkari vs Robin Montgomery
limitless
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery

Volume:
$692,345

US Open WTA: Maria Sakkari vs Robin Montgomery

 - Polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 1, 2026

Closed: Sep 1, 5:32 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery

View
100%
43%
Yes 100¢No 0¢
0.1¢
N/A
$670,770
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 Winner

100%
44%
Yes 100¢No 0¢
0.1¢
N/A
$1,510
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Match O/U 21.5

100%
47%
Yes 100¢No 0¢
17¢
N/A
$1,173
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Match O/U 22.5

100%
52%
Yes 100¢No 0¢
3.1¢
N/A
$354
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Total Sets: O/U 2.5

100%
62%
Yes 100¢No 0¢
20¢
N/A
$18
N/A
N/A
N/A
Settled
Yes
limitless

Maria Sakkari vs Robin Montgomery: 3 or more total sets?

N/A
N/A
99.8¢
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set Handicap +/-1.5

0%
37%
Yes 0¢No 100¢
—
N/A
$16,675
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set Handicap +/-1.5

0%
25%
Yes 0¢No 100¢
—
N/A
$1,537
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 Winner

0%
56%
Yes 0¢No 100¢
—
N/A
$309
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

100%
1%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 O/U 8.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 O/U 8.5

0%
71%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 O/U 9.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 O/U 9.5

0%
49%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 O/U 10.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 O/U 10.5

0%
49%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open WTA: Maria Sakkari vs Robin Montgomery Match O/U 23.5

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

US Open WTA: Maria Sakkari vs Robin Montgomery Game Spread +/-0.5

100%
42%
Yes 100¢No 0¢
0.9¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 18

Intro

This market tracks the Over/Under on the total number of games played in the Maria Sakkari versus Robin Montgomery match at the US Open WTA. Currently, the consensus probability favors Sakkari vs. Montgomery: Match O/U 21.5 at 100.0%. This aggregate view combines data from Limitless and Polymarket, all resolving to the same source: Official Grand Slam statistics. The markets cover various aspects of the match, including outcomes, sets, and handicaps, originally scheduled for August 30, 2026. Keep an eye on the official match start time on September 6, 2026, as this will initiate the game count for resolution.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All markets across platforms share consistent resolution logic, relying on official Grand Slam statistics with uniform treatment of edge cases like cancellations, retirements, and incomplete matches.Primary resolution logic: Official Grand Slam statistics

Core resolution logic:

  • Markets resolve based on the official match result and statistics from the Grand Slam tournament.
  • If a match is canceled, ends in a tie, or is not completed by the deadline, markets resolve as 50-50 unless the outcome is already determined.
  • For markets involving sets or games, resolution depends on whether the set or match was completed or abandoned.

Edge cases & clarifications:

  • Match Cancellation: If the match is canceled before play begins or not completed by the deadline, all markets resolve as 50-50 unless the outcome is already determined.
  • Retirement/Walkover: If a player retires or the match ends in a walkover, the outcome is determined based on who advances, and some markets may resolve as 50-50 if the affected portion was not completed.
  • Incomplete Match: If the match begins but is not completed, markets resolve based on completed portions unless the outcome is already determined; otherwise, they resolve as 50-50.
Timing: Resolution occurs once official Grand Slam statistics are published, or by September 13, 2026, 11:59 PM ET if the match is not completed.Our 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 refers to the tennis match between Maria Sakkari and Robin Montgomery in the US Open WTA, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Maria Sakkari' if Maria Sakkari advances against Robin Montgomery. This market will resolve to 'Robin Montgomery' if Robin Montgomery advances against Maria Sakkari. 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.

Limitless

This market refers to the tennis match between Maria Sakkari and Robin Montgomery 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 sets completed equals or exceeds 3. Otherwise, it will resolve to "NO." A super tie breaker is considered as one (1) set for total set markets. 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.

Frequently asked questions

The dashboard for the US Open WTA Sakkari vs Montgomery match market aggregates real-time data from multiple prediction platforms, showing how traders price the likelihood of various match outcomes. It tracks volume of $692,345 and 24-hour volume of $689,212, letting users see consensus views and compare sentiment across venues. This centralized view helps participants spot trends, gauge market momentum, and understand where the most activity is concentrated as the tournament progresses.