Here is a list of Sims's best fights. For a list of Sims's losses, refer to "Robbie Sims Losses".
On August 30, 1985 Robbie Sims faced off against Doug DeWitt at age 25. He was coming in with a record of 24-4-1 (17), and DeWitt was 24 years old and with a record of 25-1-3 (16). Sims won the fight via 10-round unanimous decision.
On June 23, 1986 Robbie Sims faced off against Roberto Duran at age 26. He was coming in with a record of 27-4-1 (19), and Duran was 35 years old and with a record of 79-6 (60). Sims won the fight via 10-round split decision.
On March 9, 1986 Robbie Sims faced off against John Collins in a middleweight bout at age 26. He was coming in with a record of 26-4-1 (19). Sims stopped John Collins via TKO.