TOTAL VOLUME:

$134b

24H VOL:

$107,351,958

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

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30,097

events

MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Tatjana Maria vs Jelena Ostapenko: Set 1 Winner
kalshi

Tatjana Maria vs Jelena Ostapenko: Set 1 Winner

Volume:
$93,013

Jelena Ostapenko

 - Kalshi

Jelena Ostapenko - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 2, 2026

Closed: Sep 1, 9:45 PM EST

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Kalshi

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

Jelena Ostapenko

View
100%
Yes 100¢No 0¢
1¢
N/A
$54,915
N/A
N/A
$36,063
Settled
Yes
kalshi

Tatjana Maria

0%
45%
Yes 0¢No 100¢
1¢
N/A
$38,097
N/A
N/A
$24,303
Settled
No
Total markets: 2

Description

This market focuses on predicting which player, Tatjana Maria or Jelena Ostapenko, will claim the first set in their 2026 US Open Women Singles Round Of 128 match. The outcome depends solely on the result of Set 1, regardless of how the overall match concludes. Special provisions address scenarios where the match cannot proceed as scheduled.

Kalshi

If Tatjana Maria wins set 1 in the Tatjana Maria vs Jelena Ostapenko professional tennis match in the 2026 US Open Women Singles Round Of 128, then the market resolves to Yes. If Jelena Ostapenko wins set 1 in the Tatjana Maria vs Jelena Ostapenko professional tennis match in the 2026 US Open Women Singles Round Of 128, then the market resolves to Yes.

Frequently asked questions

On Kalshi, this dashboard tracks the latest odds and price history for the Set 1 winner market, along with a real-time view of 24-hour volume of $92,787. It shows how traders on Kalshi are positioning themselves ahead of the match, offering a live barometer of market sentiment and trading activity for set-level outcomes.

On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, traders manually set prices through buying and selling contracts that represent either outcome of the first set. The current implied chance reflects the collective judgment of participants, adjusting continuously with each trade. Volume of $93,013 shows the level of interest and liquidity supporting these price movements.

This market resolves around Aug 30, 2026, with the outcome confirmed once the match result is verifiable from credible public reporting. The winner of the first set — based on officially recognized match records — will settle all positions, and contracts will pay out accordingly based on the final verified result.

Key signals that could shift prices in this market include last-minute player injuries, weather delays affecting serve performance, or strategic changes in coaching approaches right before the match starts. Any public updates from official tournament sources or recognized media outlets may also cause rapid reassessments among traders as the start time approaches.