Kelvin Gastelum has 10 losses against 10 opponents on his MMA record. For a list of Gastelum's best fights, refer to "Best fights of Kelvin Gastelum".
On June 7, 2025 Kelvin Gastelum faced off against Joe Pyfer in a welterweight bout at age 33. He was coming in with a record of 19-10 (11), and Pyfer was 28 years old and with a record of 13-3 (10). Gastelum lost the fight via 3-round unanimous decision.
On December 2, 2023 Kelvin Gastelum faced off against Sean Brady in a welterweight bout at age 32. He was coming in with a record of 18-9 (11), and Brady was 31 years old and with a record of 15-1 (6). Gastelum lost the fight via 3rd-round submission.
On August 21, 2021 Kelvin Gastelum faced off against Jared Cannonier in a middleweight bout at age 29. He was coming in with a record of 17-8 (11), and Cannonier was 37 years old and with a record of 13-5 (11). Gastelum lost the fight via 5-round unanimous decision.
On April 17, 2021 Kelvin Gastelum faced off against Robert Whittaker in a middleweight bout at age 29. He was coming in with a record of 17-7 (11), and Whittaker was 30 years old and with a record of 22-5 (14). Gastelum lost the fight via 5-round unanimous decision.
On July 19, 2020 Kelvin Gastelum faced off against Jack Hermansson in a middleweight bout at age 28. He was coming in with a record of 16-6 (11), and Hermansson was 32 years old and with a record of 20-5 (16). Gastelum lost the fight via 1st-round submission.
On November 2, 2019 Kelvin Gastelum faced off against Darren Till in a middleweight bout at age 28. He was coming in with a record of 16-5 (11), and Till was 26 years old and with a record of 17-2-1 (12). Gastelum lost the fight via 3-round split decision.
On April 13, 2019 Kelvin Gastelum fought Israel Adesanya in a middleweight title fight for Adesanya's UFC Championship title. Gastelum was 27 years old and with a record of 16-4 (11), and Adesanya was 29 years old and with a record of 16-0 (13). Gastelum lost the fight via 5-round unanimous decision.
On July 22, 2017 Kelvin Gastelum faced off against Chris Weidman in a middleweight bout at age 25. He was coming in with a record of 14-3 (10), and Weidman was 33 years old and with a record of 13-3 (8). Gastelum lost the fight via 3rd-round submission.
On November 21, 2015 Kelvin Gastelum faced off against Neil Magny in a middleweight bout at age 24. He was coming in with a record of 12-2 (9), and Magny was 28 years old and with a record of 16-4 (8). Gastelum lost the fight via 5-round split decision.
On January 31, 2015 Kelvin Gastelum faced off against Tyron Woodley in a welterweight bout at age 23. He was coming in with a record of 11-1 (8), and Woodley was 32 years old and with a record of 14-3 (10). Gastelum lost the fight via 3-round split decision.
