Arnold Allen vs. Melquizael Costa: UFC Fight Night, May 16, 2026

UFC Fight Night: Allen vs. Costa · Meta Apex, Las Vegas, Nevada, U.S.

Arnold Allen11-3-0

SatMay 16Decision · R5Featherweight

Melquizael Costa7-2-0

53.2% (Elo 1606)

(Elo 1584) 46.8%

Result

Arnold Allen wins by Decision (unanimous)

round 5, 5:00

Pre-fight Elo gave Arnold Allen 53.2%: correct

Elo prediction

Elo: Arnold Allen 1606, Melquizael Costa 1584: a 22-point gap.
Form: Arnold Allen won 2 of the last 5, Melquizael Costa won 5 of 5. Form favours Melquizael Costa.
Verdict: Close fight · Arnold Allen 53.2% by Elo. Form favours Melquizael Costa.

Arnold Allen53.2%ELO46.8%Melquizael Costa

1606 · Pre-fight Elo · 1584

Common opponents

The two fighters have no common UFC opponents.

Recent form

Arnold Allen · won 2 of last 5Melquizael Costa · won 5 of last 5

Elo after each UFC fight, first to latest. Hollow dots are losses.

Arnold Allen

Loss
Jean SilvaDecision (unanimous) · R3 5:00
Jan 24, 2026
Win
Giga ChikadzeDecision (unanimous) · R3 5:00
Jul 27, 2024
Loss
Movsar EvloevDecision (unanimous) · R3 5:00
Jan 20, 2024
Loss
Max HollowayDecision (unanimous) · R5 5:00
Apr 15, 2023
Win
Calvin KattarKO/TKO (knee injury) · R2 0:08
Oct 29, 2022

Melquizael Costa

Win
Dan IgeKO/TKO (spinning back kick and punches) · R1 4:56
Feb 21, 2026
Win
Morgan CharrièreKO/TKO (head kick) · R1 1:14
Dec 13, 2025
Win
Julian ErosaDecision (unanimous) · R3 5:00
May 17, 2025
Win
Christian RodriguezDecision (unanimous) · R3 5:00
Mar 29, 2025
Win
Andre FiliSubmission (guillotine choke) · R1 4:30
Feb 22, 2025

Tale of the tape

32Age29

175.3 cmHeight177.8 cm

177.8 cmReach180.3 cm

no data yetStanceSouthpaw

11-3-0UFC record7-2-0

1642Peak Elo1584

Records and Elo count UFC fights only.

Where to watch

Main card: Paramount+

Prelims: Paramount+

Per Wikipedia. eloline lists official broadcasters only.

More fights at UFC Fight Night: Allen vs. Costa

Full card »

Choi Doo-ho vs. Daniel SantosKO/TKO Juan Díaz vs. Malcolm WellmakerSubmission Modestas Bukauskas vs. Christian EdwardsDecision Bernardo Sopaj vs. Timothy CuambaSubmission Khaos Williams vs. Nikolay VeretennikovKO/TKO Ivan Erslan vs. Tuco TokkosDecision Thomas Gantt vs. Artur MinevKO/TKO Ketlen Vieira vs. Jacqueline CavalcantiDecision

FAQ

When and where is UFC Fight Night: Allen vs. Costa?

Sat, May 16, 2026 at Meta Apex, Las Vegas, Nevada, U.S..

How many rounds is this fight?

Main events are usually five rounds; other fights are three rounds of five minutes.

How does eloline's Elo work?

Every fighter starts at 1500. Wins add points, losses take them away, and beating a stronger opponent adds more. The win probability comes from the pre-fight Elo gap. Only UFC fights are counted for now.

Source: Wikipedia: UFC Fight Night: Allen vs. Costa (CC BY-SA 4.0). Records and Elo count UFC fights only.