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Granby: August Holmgren vs Aidan Mayo Predictions

The market saysProbably yes82% YES
YES 82%
18% NO

A YES share pays out if this happens and NO pays out if it doesn’t — so the 82% price is just the market’s implied chance of YES. How YES/NO contracts work →

Platform
Polymarket
Volume
$39,741 volume
Resolves
22 Jul 2026
Updated
3 months ago

The market has priced August Holmgren as strongly favored, laying odds at 82% that he advances past Aidan Mayo in their Granby matchup scheduled for July 15, 2026. With $40k traded, this is a thin book, so the price reflects conviction more than depth. in recent trading has held the contract over the past week, suggesting either fresh information on form or a modest shift in backer confidence.

At this split, the market is saying Holmgren has roughly three times the implied winning chance of Mayo. That gap typically narrows only on news: a recent injury report, a ranking shift, or concrete evidence of match-day conditions favoring one player’s style. Until the scheduled date—or cancellation, delay beyond seven days, or an unexpected tie—this price will track any available intel on fitness and head-to-head records.

For traders: 82% at strongly favored is a live read, not a final word. Even heavily favored players lose. Watch for late scratches and weather updates closer to July; delays matter here, since the resolution rule penalizes ambiguity after a week.

FAQ

What does a 82% price mean?

It is the market-implied probability. A 82% YES price means traders collectively judge the event about 82% likely.

How does this market resolve?

This market refers to the tennis match between August Holmgren and Aidan Mayo in the Granby, originally scheduled for July 15, 2026 at 10:00AM ET. This market will resolve to 'August Holmgren' if August Holmgren advances against Aidan Mayo. This market will resolve to 'Aidan Mayo' if Aidan Mayo ad

Where can I trade it?

This market is listed on Polymarket. Prediction markets carry real financial risk and may not be available in every state.

Is this the same as sports betting?

Legally it’s event-contract trading on a regulated exchange, not a sportsbook bet — though the experience is similar. Read our prediction markets vs sports betting explainer.

Can I trade sports where betting is illegal?

Often yes, because these are federally regulated contracts — but sports is restricted in some states, so always check your state first.

Best platforms for sports?

Kalshi has the broadest catalog; DraftKings and FanDuel are strong for sports-first traders. See our reviews.

What is a prediction market?

A prediction market lets you trade contracts on whether a real-world event will happen. The live price moves with supply and demand and reads as the implied probability. Read more →

How do the odds work?

Every price between 1¢ and 99¢ is the implied chance of YES. A contract settles at $1 if it resolves yes and $0 if it does not. Read more →

Trade this on Polymarket →

Prediction market contracts carry real financial risk and can resolve to zero. 18+.