Champaign: Zack Viiala vs Samuel Heredia Odds
| Outcome | Chance | Odds | 24h |
|---|---|---|---|
| Zack Viiala vs Samuel Heredia | 53% | -111 | — |
| Champaign: Zack Viiala vs Samuel Heredia Set 1 Winner | 52% | -108 | — |
| Champaign: Zack Viiala vs Samuel Heredia Set 2 Winner | 50% | -100 | — |
| Champaign: Zack Viiala vs Samuel Heredia Total Sets: O/U 2.5 | 37% | +170 | — |
| Champaign: Zack Viiala vs Samuel Heredia Match O/U 21.5 | 52% | -108 | — |
| Champaign: Zack Viiala vs Samuel Heredia Match O/U 22.5 | 45% | +125 | — |
| Champaign: Zack Viiala vs Samuel Heredia Match O/U 23.5 | 46% | +117 | — |
| Champaign: Zack Viiala vs Samuel Heredia Set Handicap +/-1.5 | 34% | +199 | — |
| Champaign: Zack Viiala vs Samuel Heredia Set Handicap +/-1.5 | 30% | +233 | — |
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Price history
Resolution rules
This market refers to the tennis match between Zack Viiala and Samuel Heredia in the Champaign, USA, Qualifying, originally scheduled for November 15, 2026 at 4:50PM ET. This market will resolve to 'Zack Viiala' if Zack Viiala advances against Samuel Heredia. This market will resolve to 'Samuel Heredia' if Samuel Heredia advances against Zack Viiala. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 29, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Source: Polymarket. The venue's rules are final.
FAQ
How are prediction market odds calculated?
Each contract pays $1 if the outcome happens and $0 if it doesn't, so its price is the market's implied probability: a 60¢ contract means roughly a 60% chance. We show the last trade, or the midpoint between the best bid and ask when the order book is tight.
When does this market close?
Polymarket lists Nov 22, 2026 as the end date. It can close earlier if the outcome is decided.
Where can I trade on Champaign: Zack Viiala vs Samuel Heredia?
This market trades on Polymarket. Availability depends on where you live: Kalshi is a CFTC-regulated US exchange, while Polymarket's international site isn't available to US users (Polymarket US is a separate app). You must be 18 or older.