UFC Fight Night: Allen vs. Costa Preview as Elite Expert Kyle Marley Delivers Key Betting Insights from Las Vegas

Las Vegas, NV – The Ultimate Fighting Championship (UFC) is set to host a pivotal featherweight clash this Saturday, May 16, 2026, as the highly anticipated UFC Fight Night: Allen vs. Costa card unfolds at the Meta APEX facility. The main event will feature a compelling bout between seventh-ranked Arnold "Almighty" Allen and twelfth-ranked Melquizael "The Kraken" Costa, promising significant implications for the divisional rankings. The five-bout main card is scheduled to commence at approximately 8 p.m. ET, with live coverage exclusively available on Paramount+.

The headline attraction pits two of the featherweight division’s most dynamic competitors against each other. Arnold Allen enters the octagon seeking to rebound from a unanimous decision loss to Jean Silva at UFC 324 in January. His opponent, Melquizael Costa, arrives with momentum, having secured a knockout victory over Da Ige at UFC Fight Night: Strickland vs. Hernandez just this past February. The fight presents a classic striker-versus-grappler narrative, though both fighters have demonstrated well-rounded skill sets throughout their careers.

According to DraftKings Sportsbook, Arnold Allen is currently positioned as the -130 favorite, requiring a $130 wager to yield a $100 profit. Melquizael Costa, conversely, is listed as the +110 underdog, offering a $110 return on a $100 bet if he prevails. These odds reflect the competitive nature of the matchup, with oddsmakers slightly favoring Allen’s experience and consistent performance against top-tier competition.

For bettors and enthusiasts looking for in-depth analysis, SportsLine’s seasoned MMA expert, Kyle Marley, has released his comprehensive predictions and betting advice for the entire UFC Fight Night: Allen vs. Costa card. Marley’s track record in MMA wagering is notable; over the past three-plus years, individuals who have consistently followed his picks on $100 wagers have seen returns approaching $10,000. Since May 2018, his total profit for SportsLine members has exceeded $21,000. His expertise was particularly highlighted in 2020, following the UFC’s brief hiatus due to the global pandemic, when he accurately predicted five consecutive main-event underdog winners, demonstrating a keen eye for upsets and undervalued fighters.

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Arnold Allen: The Journey of "Almighty"

Arnold Allen, aged 32, has built a formidable reputation within the featherweight division. Boasting a professional record of 20 wins and 4 losses, Allen’s victories include seven by knockout, four by submission, and nine by decision, showcasing his versatility. He is a three-time recipient of the UFC’s "Performance of the Night" bonus, an accolade that underscores his ability to deliver memorable and decisive finishes.

Allen’s mixed martial arts journey began in April 2012 with a first-round knockout victory over Nathan Greyson at Ultimate Challenge MMA 27 in London. Following a dominant 9-1 run in regional circuits, he made his highly anticipated UFC debut in 2015. What followed was an impressive ascent, as Allen strung together a remarkable 10-fight win streak within the organization, a run that stood as the third-longest in UFC featherweight division history between 2015 and 2022. This streak included significant wins over fighters such as Dan Hooker and Calvin Kattar, solidifying his status as a top contender. However, his recent form has seen a slight dip, with three losses in his last four outings, including defeats to former champion Max Holloway and top contender Movsar Evloev, before his most recent loss to Jean Silva. Prior to his UFC success, Allen also held the M4TC lightweight championship, further attesting to his pedigree.

Melquizael Costa: "The Kraken" Rises

Melquizael Costa, at 29 years old, presents a formidable challenge to Allen. His professional record stands at an impressive 26 wins and 7 losses, with nine victories coming by knockout, eight by submission, and nine by decision. This balanced finishing record highlights his threat in all aspects of MMA. Costa is a former Predator FC featherweight champion, a title that marked him as a rising star before his entry into the UFC.

Costa’s UFC tenure has been marked by exciting performances. In 2025, his bout against Dan Ige was recognized as the fifth-ranked "Fight of the Year," a testament to its thrilling back-and-forth action and high stakes. He has also earned one "Performance of the Night" and one "Fight of the Night" bonus in the UFC, indicating his penchant for engaging and impactful contests. Furthermore, Costa is tied with nine other fighters for the most submission wins in UFC featherweight history, with two tap-out victories, demonstrating his dangerous ground game. He is also tied with three other fighters for the sixth-longest win streak in UFC featherweight history, having accumulated seven consecutive victories at one point. His recent knockout win over Da Ige in February has undoubtedly boosted his confidence and momentum heading into this main event.

Expert Insight: Kyle Marley’s Detailed Analysis

While Kyle Marley’s specific main event prediction for Allen vs. Costa remains exclusive to SportsLine subscribers, he has provided detailed insights into other matchups on the card, offering a glimpse into his analytical approach. For instance, in the women’s strawweight bout, Marley has backed Nicolle Caliari (-265) to secure a unanimous decision victory over Shauna Bannon (+215).

Explaining his rationale for this particular pick, Marley stated, "Bannon should be the better striker at range here, but Caliari should have the wrestling/grappling edge. I do think Caliari will land a couple of takedowns in this matchup, and I’ll take her to keep enough control time to win two rounds and get her hand raised." This assessment highlights Marley’s focus on key stylistic advantages, such as grappling control time, and how they can sway judges’ decisions over the course of a fight.

Marley’s methodology involves a thorough examination of each fighter’s strengths, weaknesses, recent form, and potential stylistic clashes. His consistent success over years of analysis has cemented his reputation as a reliable source for UFC betting insights. His full breakdown for the Allen vs. Costa main event, along with his picks for all other bouts on the card, including a fighter he identifies as "the better overall athlete" destined for a significant victory, are available exclusively through SportsLine.

UFC Fight Night: Allen vs. Costa Main Card Overview

The event features a compelling lineup of bouts leading up to the main event, each with its own set of betting lines reflecting anticipated outcomes. All odds are sourced from DraftKings Sportsbook and are subject to change.

  • Arnold Allen (-130) vs. Melquizael Costa (+110) (Featherweight Main Event)
  • Doo Ho Choi (+140) vs. Daniel Santos (-160) (Bantamweight Bout)
    • Choi, a fan-favorite striker, looks to regain form against the aggressive Santos.
  • Malcolm Wellmaker (-225) vs. Juan Diaz (+185) (Lightweight Bout)
    • Wellmaker enters as a significant favorite, signaling confidence in his performance against Diaz.
  • Modestas Bukauskas (-310) vs. Christian Edwards (+250) (Light Heavyweight Bout)
    • Bukauskas, with his striking prowess, is heavily favored in this light heavyweight contest.
  • Timmy Cuamba (+105) vs. Benardo Sopaj (-125) (Bantamweight Bout)
    • A closely contested bantamweight fight, with Sopaj holding a slight edge in the odds.
  • Khaos Williams (-122) vs. Nikolay Veretennikov (+102) (Welterweight Bout)
    • A tightly matched welterweight encounter, promising an exciting stand-up battle.

UFC Fight Night: Allen vs. Costa is poised to deliver a night of high-stakes action and tactical battles. With the featherweight division’s rankings on the line in the main event and expert analysis guiding bettors, the Meta APEX in Las Vegas is set to witness another memorable chapter in UFC history.

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