19-1-0 (W-L-D)
vs Julianna Peña Title Bonus
UFC 316 · Jun 7, 2025 · Newark, New Jersey, United States
UFC 307 · Oct 5, 2024 · Salt Lake City, Utah, United States
vs Holly Holm
UFC 300 · Apr 13, 2024 · Las Vegas, Nevada, United States
vs Aspen Ladd
PFL 10 (2023) · Nov 24, 2023 · Washington, D.C., United States
vs Larissa Pacheco
PFL 10 (2022) · Nov 25, 2022 · New York City, New York, United States
vs Martina Jindrová
PFL 9 (2022) · Aug 20, 2022 · London, England
vs Kaitlin Young
PFL 6 (2022) · Jul 1, 2022 · Atlanta, Georgia, United States
vs Marina Mokhnatkina
PFL 3 (2022) · May 6, 2022 · Arlington, Texas, United States
vs Taylor Guardado
PFL 10 (2021) · Oct 27, 2021 · Hollywood, Florida, United States
vs Genah Fabian
PFL 8 (2021) · Aug 19, 2021 · Hollywood, Florida, United States
vs Cindy Dandois
PFL 6 (2021) · Jun 25, 2021 · Atlantic City, New Jersey, United States
vs Mariana Morais
PFL 3 (2021) · May 6, 2021 · Atlantic City, New Jersey, United States
vs Courtney King
Invicta FC 43 · Nov 20, 2020 · Kansas City, Kansas, United States
vs Larissa Pacheco
PFL 10 (2019) · Dec 31, 2019 · New York City, New York, United States
vs Bobbi Jo Dalziel
PFL 7 (2019) · Oct 11, 2019 · Las Vegas, Nevada, United States
vs Morgan Frier
PFL 4 (2019) · Jul 11, 2019 · Atlantic City, New Jersey, United States
vs Larissa Pacheco
PFL 1 (2019) · May 9, 2019 · Uniondale, New York, United States
vs Moriel Charneski
PFL 11 (2018) · Dec 31, 2018 · New York City, New York, United States
vs Jozette Cotton
PFL 6 (2018) · Aug 16, 2018 · Atlantic City, New Jersey, United States
vs Brittney Elkin
PFL 2 (2018) · Jun 21, 2018 · Chicago, Illinois, United States
Kayla Harrison, a two-time Olympic judo champion turned MMA fighter, competes in the UFC women’s bantamweight division. She entered the sport through American judo and has carried a rare mastery of ground fighting into MMA.
Born Kayla Jean Harrison on July 2, 1990, in Middletown, Ohio, she trained in judo under Jimmy Pedro and became the first American woman to win Olympic judo gold, in 2012 in London, then defended her title in 2016 in Rio de Janeiro, in the under-78-kilogram division. She also won the 2010 world title in Tokyo and earned her sixth-degree black belt in 2016, becoming the youngest American to reach that rank. After the Rio Games, she turned to professional MMA and trains at American Top Team, while keeping Jimmy Pedro as her coach for the judo side of her game. This move from the mat to the cage fits a personal path built on a work ethic forged in her teenage years, which Harrison regularly cites as the foundation of her success in a sport very different from where she started.
Kayla Harrison first built her career in the PFL, where she established herself as one of the best fighters across all weight classes, before joining the UFC at bantamweight. She beat Holly Holm by submission, a rear-naked choke, at UFC 300 in April 2024, then Ketlen Vieira by unanimous decision at UFC 307 in October 2024. On June 7, 2025, she faced Julianna Peña at UFC 316 and won by submission with an armbar, a kimura, becoming UFC women’s bantamweight world champion. That title run capped a successful transition between two Olympic and professional disciplines, with Harrison becoming one of the rare athletes to have dominated both world judo and a major professional MMA division.
Judo remains the technical foundation of Kayla Harrison’s game, a discipline in which she dominated the world stage for nearly a decade. On the ground, she imposes her grappling and submission skills, especially armbars, to finish opponents. Her ability to bring a fight to the ground and stay in a dominant position offsets more limited experience in standup striking, a profile that contrasts with pure strikers in the division such as Raquel Pennington or a well-rounded technician like Zhang Weili at strawweight. Harrison’s opponents know that an extended exchange in the clinch or on the ground almost always tips in her favor, which pushes them to favor distance and movement, a tactical constraint that shapes most of her fights before the first strike is even thrown.
Data updated on September 28, 2026. Record and measurements cross-checked against official results and Wikipedia. Text written by the MMA Official editorial team.
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