Robbie Sims has 10 losses against nine opponents on his boxing record. For a list of Sims's best fights, refer to "Best fights of Robbie Sims".
On October 26, 1993 Robbie Sims faced off against Vinny Pazienza at age 33. He was coming in with a record of 37-10-2 (26), and Pazienza was 30 years old and with a record of 34-5 (26). Sims lost the fight via 10-round unanimous decision.
On April 3, 1991 Robbie Sims faced off against Nigel Benn at age 31. He was coming in with a record of 32-9-2 (22), and Benn was 27 years old and with a record of 27-2 (25). Sims lost the fight via 7th-round KO.
On June 26, 1990 Robbie Sims faced off against Ron Essett at age 30. He was coming in with a record of 31-8-2 (22). Sims lost the fight via 10-round majority decision.
On September 12, 1989 Robbie Sims faced off against Dennis Milton at age 29. He was coming in with a record of 29-7-2 (21). Sims lost the fight via 10-round unanimous decision.
On April 18, 1989 Robbie Sims fought Doug DeWitt in a middleweight world-title fight for DeWitt's WBO title. Sims was 29 years old and with a record of 29-6-2 (21), and DeWitt was 27 years old and with a record of 30-6-4 (18). Sims lost the fight via 12-round split decision.
On June 12, 1988 Robbie Sims faced off against Sumbu Kalambay at age 28. He was coming in with a record of 29-5-2 (21), and Kalambay was 32 years old and with a record of 44-3-1 (25). Sims lost the fight via 12-round unanimous decision.
On November 1, 1984 Robbie Sims faced off against Mike Tinley at age 24. He was coming in with a record of 22-4-1 (16). Sims lost the fight via 10-round unanimous decision.
On August 3, 1983 Robbie Sims faced off against Mike Tinley at age 23. He was coming in with a record of 16-3-1 (13). Sims lost the fight via 10-round split decision.
On October 16, 1982 Robbie Sims faced off against Clint Jackson at age 22. He was coming in with a record of 15-2 (12). Sims lost the fight via 10-round split decision.
On January 17, 1982 Robbie Sims faced off against Bobby Czyz at age 22. He was coming in with a record of 12-1 (9), and Czyz was 19 years old and with a record of 16-0 (12). Sims lost the fight via 10-round unanimous decision.