TLDR
- Alonzo Menifield (11-6-1 UFC record) faces Iwo Baraniewski (9-0 overall) at UFC 331 on September 19 in Los Angeles
- Baraniewski has won all three UFC fights by first-round knockout in under four minutes total
- Menifield, 38, has won three of his last four fights despite being the underdog twice
- Baraniewski enters as the betting favorite at -250, with Menifield at +198
- The light heavyweight bout opens the main card at Crypto.com Arena
Sources: covers.com | mmamania.com | sports.betmgm.com
A light heavyweight clash between veteran Alonzo Menifield and undefeated prospect Iwo Baraniewski will open the main card at UFC 331 on Saturday, September 19, 2026. The fight takes place at Crypto.com Arena in Los Angeles, California.
Baraniewski enters the bout as a heavy favorite with odds of -250, while Menifield sits at +198 according to FanDuel Sportsbook. The Polish fighter brings a perfect 9-0 record into the cage, including three consecutive first-round knockouts in the UFC.
The 27-year-old Baraniewski has finished all three of his UFC opponents in less than four minutes of total cage time. His most recent victories came against Ibo Aslan and Junior Tafa, both ending in first-round stoppages.
Menifield, 38, has competed in the UFC since 2019 and holds an 11-6-1 record inside the octagon. Despite his age and underdog status in recent fights, he has won three of his last four bouts.
🚨 Here’s your updated card for #UFC331 after Ortega pulls out 😪 pic.twitter.com/3nzu5bqfgR
— 3KFighting (@3KFighting) September 15, 2026
Tale of Two Fighters
The matchup represents a classic veteran versus prospect scenario. Menifield has recorded recent upset victories against Zhang Mingyang and Oumar Sy, proving he remains dangerous despite facing younger opponents.
However, Menifield has suffered three knockout losses in the past two and a half years. His vulnerability to being hit while pressing forward could prove costly against Baraniewski’s power.
Baraniewski’s background includes extensive Judo and jiu-jitsu training, though he has yet to showcase those skills in UFC competition. His fights have ended too quickly for his grappling abilities to come into play.
Fight analyst Andrew Richardson notes that Baraniewski possesses superior hand speed compared to Menifield. The Polish fighter has capitalized on small openings to land his powerful right hand in previous bouts.
Path to Victory
Menifield’s best chance at victory likely involves surviving the early onslaught and dragging the fight into later rounds. Baraniewski has never seen a second round in his professional career, raising questions about his cardio in extended fights.
The American fighter’s wrestling and clinch work could prove crucial. By grinding against the cage and avoiding exchanges in open space, Menifield might tire out his younger opponent.
Baraniewski’s strategy appears straightforward based on his track record. He excels at timing his right hand when opponents move forward aggressively, which matches Menifield’s tendencies.
The betting odds for the finish method show Baraniewski by knockout at -130, compared to +400 for a Menifield knockout. Decision odds sit at +1100 for Baraniewski and +750 for Menifield.
Prediction markets give Baraniewski a 69 percent probability of winning the fight. The same markets place a 60 percent probability on Baraniewski winning by knockout, technical knockout, or disqualification.
The fight also carries a 52 percent probability of ending before the second round begins, according to prediction market data from Kalshi.
