TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Sakamoto vs Tiafoe
kalshi

Who will win Sakamoto vs Tiafoe?

Volume:
$3,133,787

Frances Tiafoe

 - Kalshi

Frances Tiafoe - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 3, 2026

Closed: Sep 2, 9:55 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

Frances Tiafoe

View
100%
22%
Yes 100¢No 0¢
100¢
N/A
$2,144,632
N/A
N/A
$1,383,725
Settled
Yes
kalshi

Rei Sakamoto

View
0%
23%
Yes 0¢No 100¢
100¢
N/A
$989,155
N/A
N/A
$583,825
Settled
No
Total markets: 2

Description

This market centers on a professional tennis match between two players scheduled for the 2026 US Open. The outcome depends on which athlete secures victory after the match officially begins. If the contest does not start due to cancellations, the market adjusts fairly, while postponements keep the market active until the rescheduled event concludes.

Kalshi

The market resolves based on the winner of the Sakamoto vs Tiafoe professional tennis match in the 2026 US Open Men Singles Round Of 64, provided that play has commenced. If the match does not start—whether due to injury, walkover, forfeiture, or other cancellations—the market resolves to a fair price. Postponements or delays keep the market open, closing only after the rescheduled match finishes, with a two-week window for closure. Kalshi disclaims any official affiliation with the governing league, and all trademarks remain property of their respective owners.