Oddsmakers gave Luis Gurule almost no chance to spoil Bilal Hasan’s Madison Square Garden showcase, yet the gritty flyweight veteran delivered one of the biggest upsets of 2026 on Saturday night at UFC 334. Opening the main card as the steepest underdog on the entire slate against the night’s heaviest betting favorite, Gurule weathered an early storm to hand the previously undefeated prospect his first professional loss via split decision (28-29, 29-28, 29-28).

Luis Gurule pulls off the upset!

[ #UFC334 | LIVE on @paramountplus ] pic.twitter.com/iXoGaHcjYm

— UFC on Paramount+ (@UFConParamount) November 15, 2026

Hasan entered the Octagon at 10-0 and closed around -1050 across major sportsbooks, and at 88% on Polymarket, following back-to-back knockout finishes on Dana White’s Contender Series and in his UFC debut. Armed with a six-inch reach advantage and blistering kicking speed, the 25-year-old Indonesian-American controlled the opening frame at distance. Hasan peppered Gurule with calf kicks, spinning body shots and crisp right hands, easily capturing Round 1 despite getting briefly dropped during an early exchange.

Luis Gurule drops Bilal Hasan in the first round 👀 #UFC334 pic.twitter.com/1P7Rw0a3Wc

— Championship Rounds (@ChampRDS) November 15, 2026

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Rather than folding under the heavy favorite’s firepower, the 32-year-old Colorado native flipped the script over the final 10 minutes. Gurule, who stepped into the cage holding a 1-4 promotional record, abandoned prolonged kickboxing exchanges to crowd Hasan’s space. Even after absorbing an elbow that opened a nasty cut on his forehead, “Grim” repeatedly drove forward to force clinches and drag the dynamic striker to the mat.

Once on the canvas, Gurule neutralized Hasan’s explosive striking offense with suffocating top pressure and disciplined positional grappling. While Hasan held a 52-39 edge in significant strikes landed, Gurule secured two pivotal takedowns on five attempts and outlanded the prospect 111-58 in total strikes from half-guard.

Two of the three cageside judges rewarded Gurule’s composure, durability and second-half control with 29-28 scorecards. The upset improves the former Fury FC champion’s professional record to 12-4 while proving once again that seasoned Octagon grit can derail even the most lopsided betting lines.