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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Frances Tiafoe vs Ben Shelton: Set 1 Winner
kalshi

Frances Tiafoe vs Ben Shelton: Set 1 Winner

Volume:
$1,093,494

Frances Tiafoe

 - Kalshi

Frances Tiafoe - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 12, 2026

Closed: Sep 11, 8:35 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%
63%
Yes 100¢No 0¢
100¢
N/A
$455,713
N/A
N/A
$258,129
Settled
Yes
kalshi

Ben Shelton

0%
Yes 0¢No 100¢
100¢
N/A
$637,781
N/A
N/A
$538,851
Settled
No
Total markets: 2

Description

This market focuses on predicting which player will win the first set in an upcoming tennis semifinal match during the 2026 US Open. It allows participants to speculate on the immediate performance of the athletes in the early stages of a high-stakes match.

Kalshi

If Frances Tiafoe wins set 1 in the Frances Tiafoe vs Ben Shelton professional tennis match in the 2026 US Open Men Singles Semifinal, then the market resolves to Yes. If Ben Shelton wins set 1 in the Frances Tiafoe vs Ben Shelton professional tennis match in the 2026 US Open Men Singles Semifinal, then the market resolves to Yes.