Sean O'Malley is a 30-year-old professional fighter from America competing in the bantamweight division of the Ultimate Fighting Championship (UFC), where he reigns as the champion of the weight class. He made his professional MMA debut in 2015 and has had 21 bouts in his career so far. He has also made a professional boxing debut dating back to 2016, which he won via a TKO in the first round of a four-round matchup.
Before signing up with the Ultimate Fighting Championship, O'Malley had competed in promotions, namely Intense Championship Fighting, EB: Beatdown, and LFA. He got his UFC contract by defeating Alfred Khashakyan via a first-round knockout at Dana White's Contender Series 2 in 2017. And later, his promotional debut happened at The Ultimate Fighter, where he had a decision win over Terrion Ware on December 1, 2017. O'Malley defeated the former UFC bantamweight champion Aljamain Sterling at UFC 292 for the title on August 19, 2023, to become the new champion of the division. On March 9, 2024, O'Malley defended his belt at UFC 299 and avenged his only loss against Marlon Vera. However, he lost the title against Merab Dvalishvili in his last outing at UFC 306, via a unanimous decision.
Sean O'Malley's UFC record
Sean O'Malley's UFC record stands at 10 wins, 2 losses, and 1 no-contest (10-2-0, 1NC). His professional MMA record (including UFC) stands at 18 wins, 2 losses, and 1 no-contest.
Apart from mixed martial arts, Sean O'Malley made his professional boxing debut in 2016. He won the fight via TKO at 2:59 in the first round of a four-round fight. O'Malley defeated a fighter named David Courtney in the Celebrity Theater in Phoenix, Arizona, United States.
Sean O'Malley's MMA record
Sean O'Malley has a professional MMA record of 18 wins, 2 losses, and 1 no-contest to his name as of May 2025.
| Res. | Record | Opponent | Method | Event | Date | Round | Time | Location |
| Loss | 18–2 (1) | Merab Dvalishvili | Decision (unanimous) | UFC 306 | September 14, 2024 | 5 | 5:00 | Las Vegas, Nevada, United States |
| Win | 18-1 (1) | Marlon Vera | Decision (unanimous) | UFC 299 | March 10, 2024 | 5 | 5:00 | Miami, Florida, United States |
| Win | 17-1 (1) | Aljamain Sterling | TKO | UFC 292 | August 19, 2023 | 2 | 0:51 | Boston, Massachusetts, USA |
| Win | 16–1 (1) | Petr Yan | Decision (split) | UFC 280 | October 22, 2022 | 3 | 5:00 | Abu Dhabi, United Arab Emirates |
| NC | 15–1 (1) | Pedro Munhoz | NC (accidental eye poke) | UFC 276 | July 2, 2022 | 2 | 1:51 | Las Vegas, Nevada, United States |
| Win | 15–1 | Raulian Paiva | TKO (punches) | UFC 269 | December 11, 2021 | 1 | 4:42 | Las Vegas, Nevada, United States |
| Win | 14–1 | Kris Moutinho | TKO (punches) | UFC 264 | July 10, 2021 | 3 | 4:33 | Las Vegas, Nevada, United States |
| Win | 13–1 | Thomas Almeida | KO (punch) | UFC 260 | March 27, 2021 | 3 | 3:52 | Las Vegas, Nevada, United States |
| Loss | 12–1 | Marlon Vera | TKO (elbows and punches) | UFC 252 | August 16, 2020 | 1 | 4:37 | Las Vegas, Nevada, United States |
| Win | 12–0 | Eddie Wineland | KO (punch) | UFC 250 | June 6, 2020 | 1 | 1:54 | Las Vegas, Nevada, United States |
| Win | 11–0 | José Alberto Quiñónez | TKO (head kick and punches) | UFC 248 | March 7, 2020 | 1 | 2:02 | Las Vegas, Nevada, United States |
| Win | 10–0 | Andre Soukhamthath | Decision (unanimous) | UFC 222 | March 3, 2018 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Win | 9–0 | Terrion Ware | Decision (unanimous) | The Ultimate Fighter: A New World Champion Finale | December 1, 2017 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Win | 8–0 | Alfred Khashakyan | KO (punch) | Dana White's Contender Series 2 | July 18, 2017 | 1 | 4:14 | Las Vegas, Nevada, United States |
| Win | 7–0 | David Nuzzo | KO (spinning wheel kick) | LFA 11 | May 5, 2017 | 1 | 2:15 | Phoenix, Arizona, United States |
| Win | 6–0 | Irvin Veloz | KO (punch) | EB: Beatdown 20 | March 18, 2017 | 1 | 2:34 | New Town, North Dakota, United States |
| Win | 5–0 | Tycen Lynn | KO (head kick) | Intense Championship Fighting 26 | October 21, 2016 | 2 | 2:57 | Great Falls, Montana, United States |
| Win | 4–0 | Mark Coates | Decision (unanimous) | Intense Championship Fighting 23 | November 7, 2015 | 3 | 5:00 | Helena, Montana, United States |
| Win | 3–0 | Omar Avelar | Submission (rear-naked choke) | Intense Championship Fighting 20 | August 21, 2015 | 1 | 2:55 | Great Falls, Montana, United States |
| Win | 2–0 | Shane Sargent | KO (punch) | Intense Championship Fighting 19 | July 3, 2015 | 1 | 2:03 | Choteau, Montana, United States |
| Win | 1–0 | Josh Reyes | TKO (punches) | Intense Championship Fighting 17 | March 6, 2015 | 1 | 1:33 | Great Falls, Montana, United States |
Sean O'Malley boxing record
Sean O'Malley has a boxing record of 1 win and no losses to his record.
| No. | Result | Record | Opponent | Method | Round, time | Date | Location |
| 1 | Win | 1–0 | David Courtney | TKO | 1 (4), 2:59 | July 16, 2016 | Celebrity Theater, Phoenix, Arizona, U.S. |
FAQs on Sean O'Malley UFC Record
A. Sean O’Malley’s UFC record stands at 10 wins, 2 losses, and 1 no-contest.
A. Sean O’Malley’s professional MMA record stands at 18 wins, 2 losses, and 1 no-contest.
A. Sean O’Malley’s professional boxing record stands at 1 win and no losses.
A. Sean O’Malley has had thirteen fights in the UFC so far.
A. Sean O’Malley has only had 2 losses in the UFC so far.
A. Sean O'Malley is set to face Merab Dvalishvili in his next fight.
