Here is a list of Sims's best fights. For a list of Sims's losses, refer to "Heath Sims Losses".
On March 26, 2005 Heath Sims faced off against Steve Berger at age 33. He was coming in with a record of 5-3-2 (4), and Berger was 31 years old and with a record of 16-11-2 (13). Sims stopped Steve Berger via TKO.
On July 25, 2004 Heath Sims faced off against Takafumi Ito at age 32. He was coming in with a record of 4-2-1 (3). Sims stopped Takafumi Ito via TKO.