John Hathaway has three losses against three opponents on his MMA record. For a list of Hathaway's best fights, refer to "Best fights of John Hathaway".
On June 17, 2023 John Hathaway faced off against Łukasz Siwiec at age 35. He was coming in with a record of 18-3 (9). Hathaway lost the fight via 3-round unanimous decision.
On March 1, 2014 John Hathaway faced off against Dong Hyun Kim at age 26. He was coming in with a record of 17-2 (9), and Kim was 32 years old and with a record of 18-2-1 (8). Hathaway lost the fight via 3rd-round KO.
On October 16, 2010 John Hathaway faced off against Mike Pyle at age 23. He was coming in with a record of 14-1 (9). Hathaway lost the fight via 3-round unanimous decision.
