Arnold Allen def. Melquizael Costa (Unanimous Decision)
Arnold Allen defeated Melquizael Costa by Unanimous Decision in round 5 (5:00) in the Featherweight main event of UFC Fight Night: Allen vs Costa, held Saturday, May 16, 2026 at Meta Apex, Las Vegas. The judges scored it 50-45, 49-46, 50-45, Arnold Allen won the decision.
Fight stats
By round
Judges' Scorecards
Media Scores
All 10 media scorecards▾
- Ryan Frederick · WrestlingObserver.com50-45Allen
- Keith Shillan · Sherdog.com50-45Allen
- Dayne Fox · Sherdog.com50-45Allen
- Zane Simon · The MMA Vivisection50-45Allen
- Danny Segura · MMAJunkie.com50-45Allen
- CombatPress.com50-45Allen
- Jake Noecker · Home of Fight49-46Allen
- Tristen Critchfield · Sherdog.com49-46Allen
- Mike Dyce · si.com/mma49-46Allen
- Tyler Treese · Sherdog.com49-46Allen
Fan Scorecards
Scorecard data via mmadecisions.com
Betting Odds
Average moneyline across 23 sportsbooks.
| Sportsbook | Arnold Allen | Melquizael Costa |
|---|---|---|
| 4casters | -114 | +104 |
| 4Cx | -115 | -100 |
| Bet105 | -113 | +100 |
| BetAnything | -125 | -105 |
| BetMGM | -120 | +100 |
| BetOnline | -115 | -105 |
| BetRivers | -2000 | +750 |
| BetUS | -125 | +105 |
| Betway | -125 | -100 |
| Bookmaker | -112 | -108 |
| Bovada | -112 | -108 |
| Caesars | -125 | +105 |
| Circa | -115 | -105 |
| Cloudbet | -164 | +128 |
| DraftKings | -120 | +100 |
| FanDuel | -122 | +104 |
| HardRockBet | -130 | +105 |
| MyBookie | -117 | -104 |
| Pinnacle | -115 | +102 |
| Polymarket | -113 | +108 |
| ProphetX | -114 | +107 |
| Stake | -112 | +100 |
| SXBet | -115 | +109 |
Odds are for information only. · Odds data: fightodds.io
Frequently asked questions
Who won Arnold Allen vs Melquizael Costa?
Arnold Allen defeated Melquizael Costa by Unanimous Decision in round 5 (5:00) in the Featherweight main event of UFC Fight Night: Allen vs Costa, held Saturday, May 16, 2026 at Meta Apex, Las Vegas. The judges scored it 50-45, 49-46, 50-45, Arnold Allen won the decision.
What were the judges' scorecards for Arnold Allen vs Melquizael Costa?
The judges scored it 50-45, 49-46, 50-45, Arnold Allen won the decision.
Was Arnold Allen vs Melquizael Costa a robbery?
Public scoring backed the judges: 100% of 81 fan cards scored it for Arnold Allen; 100% of 10 media scores picked Arnold Allen.
Pre-fight comparison▾
Win probability
What the model gave each fighter going into the fight, from their pre-fight UFCalendar Power Index ratings. See the full Power Index
Fight DNA
Head to headUFCalendar's style model · Featherweight roster (204 fighters)
Radar scaled to this matchup · bars show the gap
Style shape
Biggest edge Arnold Allen, Punch speed +23
Attribute by attribute
Attributes are rated 0-100 by UFCalendar's style model.
Tale of the Tape
Striking Profile
Grappling Profile
Recent form (last 5 fights)
- WUFC Fight Night: Allen vs Costa · May 16, 2026Unanimous Decision · R5 · 5:00 · Featherweight
- L
- WUFC 304: Edwards vs Muhammad 2 · Jul 27, 2024Unanimous Decision · R3 · 5:00 · Featherweight
- LUFC 297: Strickland vs du Plessis · Jan 20, 2024Unanimous Decision · R3 · 5:00 · Featherweight
- LUFC Fight Night: Holloway vs Allen · Apr 15, 2023Unanimous Decision · R5 · 5:00 · Featherweight