UFC 331: Casey O'Neill vs. Eduarda Moura (Women's Flyweight, Early Prelims)
What resolves this contract
This market will resolve to "Casey O'Neill" if Casey O'Neill is officially declared the winner of the fight against Eduarda Moura at UFC 331: Van vs. Pantoja 2, scheduled for September 19, 2026. It will resolve to "Eduarda Moura" if Eduarda Moura is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond October 3, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
How to read the price
Prediction market prices are expressed in cents on the dollar. A YES contract trading at 67¢ means the market is pricing in a 67.5% implied probability of the event resolving YES. If resolution comes back YES, the contract pays $1. If NO, it pays $0.
Volume vs. open interest
Total traded volume ($9,761) reflects every buy and sell across the life of this contract. Open interest ($27,517) is the dollar value of positions currently held by traders. Deep liquidity and wide open interest are the two signals that the quoted price is reliable.
Where to trade this market
This contract is listed on Polymarket. PicksByOdds does not accept deposits, execute trades, or offer brokerage. We publish the data; you decide what to do with it.
Markets in the same story
| Market | YES | Volume |
|---|---|---|
| Will Arizona Cardinals win the 2027 NFL NFC Championship? | 1¢ | $987,204 |
| Will Golden State Warriors win the 2027 NBA Finals? | 1¢ | $983,036 |
| Will Charles Oliveira be the UFC Lightweight Champion on December 31, 2026? | 1¢ | $9,845 |
Common questions about this market
How is this market resolved?
This market will resolve to "Casey O'Neill" if Casey O'Neill is officially declared the winner of the fight against Eduarda Moura at UFC 331: Van vs. Pantoja 2, scheduled for September 19, 2026. It will resolve to "Eduarda Moura" if Eduarda Moura is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond October 3, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
When does this contract expire?
This contract closes on 2026-09-20, 3 days from now. After close, the final outcome is determined per the resolution rules above, and contracts settle at $1 (winning side) or $0 (losing side).
What happens if I buy YES at 67¢?
If the event resolves YES, each YES contract pays $1, a profit of 32¢ per dollar risked. If it resolves NO, the contract pays $0 and the full 67¢ is lost. Current market price implies a 67.5% probability of YES.
Where is this market listed?
This contract is listed on Polymarket. PicksByOdds aggregates and displays public market data; we do not broker trades or custody funds.
How reliable is the quoted price?
This market has $9,761 in total traded volume and $27,517 in open interest. Deeper liquidity generally means tighter spreads and more reliable implied probabilities. Prices refresh multiple times per day.