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Will Joao Fonseca win the 2026 Men's US Open?

polymarket sports Ends Sep 13 (3mo left) Vol: $95K • LIVE · Jun 11, 2026 17:02 UTC

Yes price

2¢

No price

98¢

Bid 2¢ Ask 4¢ Mid 3¢ Liquidity $3K

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About this market: Will Joao Fonseca win the 2026 Men's US Open? is currently priced at 2¢ for Yes and 98¢ for No on polymarket, in the sports category. It resolves on Sep 13 (3mo from now). Daily volume is around $95K. This market is also tracked on the other platform below; cross-platform spread comparison may reveal arbitrage opportunities.

Cross-Platform Prices

Polymarket

Bid

2.4¢

Ask

4.3¢

Mid

3.4¢

Vol: $95K

Kalshi

Bid

—¢

Ask

19.0¢

Mid

9.5¢