What is Sean O'Malley's weight class?

Last Modified May 22, 2025 04:50 GMT
UFC 292: Sterling v O'Malley
UFC 292: Sterling v O'Malley

Hailing from Montana, USA, Sean Daniel O'Malley, born on October 24, 1994, is an American bantamweight MMA fighter (135 lbs) of the Ultimate Fighting Championship (UFC). As of May 2025, he is ranked #1 in the bantamweight division. O'Malley fights out of Glendale, Arizona, and trains at The MMA Lab under the guidance of head trainer John Crouch. He receives coaching from his longtime friend and training partner, Tim Welch.

During the early stages of his MMA fighting career in Montana, O'Malley earned himself the nickname "Sugar" from one of his fighting coaches. O'Malley fought his first 5 matches in Montana. Later, he moved to North Dakota and eventually joined the Legacy Fighting Alliance, where he gained attention for his impressive knockout win over David Nuzzo. Following his victory against Nuzzo, O'Malley's performance earned him a spot on Dana White's Contender Series 2. In this event, he faced Alfred Khashakyan and secured a remarkable first-round KO, which led to him being offered a contract to fight in the UFC.

Sean O'Malley's weight class

Sean O’Malley fights in the bantamweight division of the UFC, where the weight limit is 135 lbs or 61 kg. Considered a flamboyant fighter in the division, O'Malley defeated Aljamain Sterling at UFC 292 to become the new UFC bantamweight champion and also defended the title once against Marlon Vera.

O’Malley has also fought one fight in the flyweight division in his MMA career. This fight was against Mark Coates at Intense Championship Fighting 23 on November 7, 2015. O’Malley won the bout via a unanimous decision.

Sean O’Malley’s MMA record

Sean O'Malley has a professional mixed martial arts record of 18 wins, 2 losses, and 1 no-contest to his name as of May 2025.

ResultRecordOpponentMethodEventDateRoundTimeLocation
Loss18-2Merab DvalishviliDecision (unanimous)UFC 316September 14, 202455:00Las Vegas, Nevada, United States
Win18-1Marlon VeraDecision (unanimous)UFC 299March 9, 202455:00Miami, Florida, United States
Win17-1Aljamain SterlingTKOUFC 292August 19, 202320:51Boston, Massachusetts, USA
Win16–1 (1)Petr YanDecision (split)UFC 280October 22, 202235:00Abu Dhabi, United Arab Emirates
NC15–1 (1)Pedro MunhozNC (accidental eye poke)UFC 276July 2, 202221:51Las Vegas, Nevada, United States
Win15–1Raulian PaivaTKO (punches)UFC 269December 11, 202114:42Las Vegas, Nevada, United States
Win14–1Kris MoutinhoTKO (punches)UFC 264July 10, 202134:33Las Vegas, Nevada, United States
Win13–1Thomas AlmeidaKO (punch)UFC 260March 27, 202133:52Las Vegas, Nevada, United States
Loss12–1Marlon VeraTKO (elbows and punches)UFC 252August 16, 202014:40Las Vegas, Nevada, United States
Win12–0Eddie WinelandKO (punch)UFC 250June 6, 202011:54Las Vegas, Nevada, United States
Win11–0José Alberto QuiñónezTKO (head kick and punches)UFC 248March 7, 202012:02Las Vegas, Nevada, United States
Win10–0Andre SoukhamthathDecision (unanimous)UFC 222March 3, 201835:00Las Vegas, Nevada, United States
Win9–0Terrion WareDecision (unanimous)The Ultimate Fighter: A New World Champion FinaleDecember 1, 201735:00Las Vegas, Nevada, United States
Win8–0Alfred KhashakyanKO (punch)Dana White's Contender Series 2July 18, 201714:14Las Vegas, Nevada, United States
Win7–0David NuzzoKO (spinning wheel kick)LFA 11May 5, 201712:15Phoenix, Arizona, United States
Win6–0Irvin VelozKO (punch)EB: Beatdown 20March 18, 201712:34New Town, North Dakota, United States
Win5–0Tycen LynnKO (head kick)Intense Championship Fighting 26October 21, 201622:57Great Falls, Montana, United States
Win4–0Mark CoatesDecision (unanimous)Intense Championship Fighting 23November 7, 201535:00Helena, Montana, United States
Win3–0Omar AvelarSubmission (rear-naked choke)Intense Championship Fighting 20August 21, 201512:55Great Falls, Montana, United States
Win2–0Shane SargentKO (punch)Intense Championship Fighting 19July 3, 201512:03Choteau, Montana, United States
Win1–0Josh ReyesTKO (punches)Intense Championship Fighting 17March 6, 201511:33Great Falls, Montana, United States

Related: What is sean o malleys ufc record?

FAQs on Sean O'Malley Weight Class

A. Sean ‘Sugar’ O’Malley fights in the bantamweight division of the Ultimate Fighting Championship.

A. Sean O’Malley weighs 135 lbs, which is the upper limit to fight in the bantamweight division.

A. Currently, Merab Dvalishvili is the champion of the bantamweight division in UFC.

A. Sean O’Malley is 5 feet 11 inches (1.80m) tall.

A. Yes, O’Malley secured a victory against Petr Yan via a split decision, although the decision was highly controversial.

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