TOTAL VOLUME:

$134b

24H VOL:

$85,014,378

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,391,695,592

394,774

Markets across

30,069

events

MATCHED EVENTS:

2,615

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Tour
All
Sports
Fonseca vs O'Connell
kalshi

Who will win Fonseca vs O'Connell?

Volume:
$106,661

Joao Fonseca

 - Kalshi

Joao Fonseca - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 18, 2026

Closed: Aug 17, 11:50 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

Joao Fonseca

View
80%
Yes 80¢No 20¢
100¢
N/A
$11,173
N/A
N/A
$8,729
Settled
No
kalshi

Christopher O'Connell

20%
Yes 20¢No 80¢
100¢
N/A
$95,487
N/A
N/A
$86,156
Settled
No
Total markets: 2

Description

This market focuses on the outcome of a professional tennis match between Joao Fonseca and Christopher O'Connell scheduled for the 2026 ATP Cincinnati Round of 32. The event will resolve based on which player wins the match, provided that play has actually begun. If the match does not start due to injury, cancellation, or other issues, the market will either resolve to a fair price or remain open if the match is rescheduled.

Kalshi

If Joao Fonseca wins the Fonseca vs O'Connell professional tennis match in the 2026 ATP Cincinnati Round Of 32 after a ball has been played, then the market resolves to Yes. If Christopher O'Connell wins the Fonseca vs O'Connell professional tennis match in the 2026 ATP Cincinnati Round Of 32 after a ball has been played, then the market resolves to Yes.