Arnold Allen vs Melquizael Costa Predictions, Picks & Odds

Cody Saftic - Contributor at Covers.com
Cody Saftic • Betting Analyst 12+ years betting experience
Updated: May 15, 2026 , 01:00 PM ET • 4 min read

Despite going through a rough patch in the octagon, expect Arnold Allen’s experience against high-level competition to pay dividends in Saturday’s main event.

Arnold Allen fights Jean Silva during UFC 324 at T-Mobile Arena.
Photo By - Reuters Connect. Arnold Allen fights Jean Silva during UFC 324 at T-Mobile Arena.

UFC featherweight Arnold Allen is eager to right the ship and get back into the win column, but first, he’ll have to come up big against streaking contender Melquizael Costa in the main event of UFC Fight Night on Saturday, May 16.

This will be Allen’s third time headlining a UFC card and fighting in a scheduled five-round fight, while his Brazilian opponent, Costa, finds himself in a main event for the first time in his career.

Allen’s high-level experience gives him the edge in this spot, and current UFC odds have him as a -140 favorite.

My Allen vs. Costa predictions and free betting picks for May 16 are backing him to edge out a close decision and secure the victory.

Allen vs Costa fight prediction: Allen moneyline (-140)

Allen vs Costa
May 16 • UFC Fight Night
Fight Prediction
Allen to win (-140)
Bet now at BET99

Arnold Allen has already proven capable of winning rounds against the sport's elite competitors, including Max Holloway, Movsar Evloev, and Jean Silva, but he’s still searching for a complete performance and a signature victory to propel him into UFC featherweight title conversations.

Although Melquizael Costa enters this bout on a six-fight win streak, he hasn’t faced anywhere near the level of competition his opponent has. Both men favor striking exchanges, but Allen does a better job of managing his offensive pace.

Expect this fight to be competitive for the first three rounds before Allen drags Costa into the championship rounds and takes advantage of his fading opponent’s cardio to score a victory.

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Allen vs Costa best bet: Fight to go the distance (-125)

Allen vs Costa
May 16 • UFC Fight Night
Best bet
Fight to go the distance (-125)
Bet now at BET99 

For all of the skills that Allen possesses, he’s not the biggest finisher.

Eight of Allen's last 10 fights have gone to the judge's scorecards, and of the two finishes, one came when his opponent blew out his knee in a freak occurrence.

Covers COVERS INTEL: Arnold Allen's bouts have been decided on the scorecards in 10 of his 14 UFC fights, a 72% rate.

Arnold Allen vs Melquizael Costa odds

Bet99
Method of Victory Allen Costa
To win outright -140 +110
To win by KO/TKO +375 +575
To win by decision +185 +305
To win by submission +1100 +625
Total rounds Over 4.5
-140
Under 4.5
+110

Odds as of 5-15.

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Arnold Allen vs Melquizael Costa tale of the tape

Allen   Costa
32 Age 29
5-foot-9 Height 5-foot-10
Featherweight Weight Class Featherweight
70 inches Reach 71 inches
20-4 Record 26-7
7 Wins by KO 9
4 Wins by submission 8

Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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Cody Saftic
Betting Analyst

Cody Saftic has been a staple of the MMA betting community since 2014, when he launched his first show, Bookie Beatdown. A graduate of Toronto's College of Sports Media, Cody has provided expert analysis for major platforms like DraftKings, PrizePicks, and Fight Network. He is also a founding member of the popular Dog or Pass Podcast.

Beyond handicapping, Cody has spent the last decade immersed in every facet of the sport, including fighter management and promotion. As a prominent matchmaker in the Canadian regional scene, he played a key role in developing UFC talents such as Mike Malott, Kyle Nelson, and Serhiy Sidey. This behind-the-scenes access provides him with a unique perspective on the "small edges" that the general betting public often overlooks.

Known for his high-profile parlay wins and a singular focus on combat sports, Cody currently serves as the play-by-play broadcaster for Aries Fight Series. Whether scouting new talent or analyzing major cards, he remains dedicated to thorough preparation and rewarding analysis.

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