Pete Williams has six losses against six opponents on his MMA record. For a list of Williams's best fights, refer to "Best fights of Pete Williams".
On March 22, 2002 Pete Williams faced off against Frank Mir in a heavyweight bout at age 26. He was coming in with a record of 12-6 (10), and Mir was 22 years old and with a record of 3-0 (2). Williams lost the fight via 1st-round submission.
On November 2, 2001 Pete Williams faced off against Ricco Rodriguez in a heavyweight bout at age 26. He was coming in with a record of 12-5 (10), and Rodriguez was 24 years old and with a record of 10-1 (7). Williams lost the fight via 2nd-round TKO.
On May 4, 2001 Pete Williams faced off against Semmy Schilt in a heavyweight bout at age 25. He was coming in with a record of 12-4 (10), and Schilt was 27 years old and with a record of 18-9-1 (15). Williams lost the fight via 2nd-round TKO.
On November 19, 1999 Pete Williams fought Kevin Randleman in a heavyweight title fight for the UFC Championship title. Williams was 24 years old and with a record of 10-3 (8), and Randleman was 28 years old and with a record of 7-3 (5). Williams lost the fight via 5-round unanimous decision.
On October 16, 1998 Pete Williams faced off against Tsuyoshi Kohsaka in a heavyweight bout at age 23. He was coming in with a record of 8-2 (6), and Kohsaka was 28 years old and with a record of 14-5-1 (9). Williams lost the fight via 1-round unanimous decision.
On July 23, 1996 Pete Williams faced off against Yuki Kondo at age 21. He was coming in with a record of 2-1 (0), and Kondo was 21 years old and with a record of 5-0-1 (2). Williams lost the fight via 1-round unanimous decision.
