Resolution criteria
Resolves to the fighter officially announced as the winner of the UFC 320 main event on October 4, 2025. Primary source: ESPN FightCenter’s event page for UFC 320; the winner listed there at event end will determine resolution. If the listing updates within 72 hours due to an immediate commission correction, the market will follow the updated result; later overturns will not change resolution. (espn.com)
If the headliner changes (opponent swap, backup steps in, or a different bout is promoted to main event), this market resolves to the winner of whatever bout the UFC/ESPN lists as “Main Event” at the start of the broadcast. (espn.com)
If the main event ends in a draw or No Contest: resolve to a “Draw/No Contest” answer if present; otherwise N/A.
If UFC 320 is postponed or canceled without a main event winner, resolve N/A.
Background
UFC 320 is scheduled for Saturday, October 4, 2025 at T‑Mobile Arena, Las Vegas (Paradise, NV), with Magomed Ankalaev vs. Alex Pereira 2 slated as the light‑heavyweight title main event; Merab Dvalishvili vs. Cory Sandhagen is booked for the bantamweight title on the same card. (espn.com, t-mobilearena.com)
Jiří Procházka is contracted as the official backup for the main event while also booked to fight on the card; he could replace either headliner if needed. (mmafighting.com)
Ankalaev defeated Pereira to win the LHW belt earlier in 2025, making this a rematch. (mmafighting.com)
Considerations
Day‑of changes are common: injuries, weight misses, or bout order reshuffles can swap in a backup or promote a different fight to the main event; resolution will track the bout designated “Main Event” at broadcast start. (espn.com)
If a replacement wins (e.g., Procházka), that fighter is the resolving answer even if not initially listed; traders can add missing options under this market’s settings. (mmafighting.com)
Start times and venue details are publicly posted by the arena; use them to verify the event date if scheduling changes occur. (t-mobilearena.com)
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