Market Dates:

• Market Period: From market publication until May 17, 2026, at 7:00 AM UTC.
• Market Close: May 17, 2026, at 7:00 AM UTC, 7 hours after the fight is scheduled to start.
• Resolution Deadline: The resolution will be determined after the results are published on the resolution source.

Resolution Criteria:

• Resolves to “Allen” if Arnold Allen wins the fight.
• Resolves to “Costa” if Melquizael Costa wins.

Resolution Details:

• Any method of victory (KO, TKO, submission, or decision) will be taken into consideration.
• If the fight ends in a Draw (including Split Draw, Unanimous Draw, or Majority Draw), this market will resolve 50-50.

Cancelation (Invalidity) Conditions:

• The fight does not take place as scheduled.
• The fight ends in a No Contest.
• The fight is rescheduled outside the Market Period.
• Official results are not available from UFC.com.
• If either fighter drops out for any reason.

If the market is canceled, participants can claim their stakes at the then-current market value of their shares, which could result in a profit or a loss depending on the price of those shares at cancelation.