William Joppy has seven losses against seven opponents on his boxing record. For a list of Joppy's best fights, refer to "Best fights of William Joppy".
On January 8, 2011 William Joppy fought Beibut Shumenov in a light-heavyweight world-title fight for Shumenov's WBA title. Joppy was 40 years old and with a record of 39-7-2 (30), and Shumenov was 27 years old and with a record of 10-1 (6). Joppy lost the fight via 6th-round KO.
On March 6, 2010 William Joppy faced off against Sébastien Demers at age 39. He was coming in with a record of 39-6-1 (30), and Demers was 30 years old and with a record of 30-2 (11). Joppy lost the fight via 10-round majority decision.
On February 29, 2008 William Joppy fought Lucian Bute in a super-middleweight world-title fight for Bute's IBF title. Joppy was 37 years old and with a record of 39-5-1 (30), and Bute was 28 years old and with a record of 21-0 (17). Joppy lost the fight via 10th-round TKO.
On December 4, 2004 William Joppy faced off against Jermain Taylor in a middleweight bout at age 34. He was coming in with a record of 34-4-1 (25), and Taylor was 26 years old and with a record of 21-0 (16). Joppy lost the fight via 12-round unanimous decision.
On December 13, 2003 William Joppy fought Bernard Hopkins in a middleweight world-title fight for Hopkins' WBA (Undisputed), WBC, IBF and The Ring titles. Joppy was 33 years old and with a record of 34-3-1 (25), and Hopkins was 38 years old and with a record of 42-2-1 (31). Joppy lost the fight via 12-round unanimous decision.
On May 12, 2001 William Joppy met Félix Trinidad in a middleweight (WBA) world-title defense fight. Joppy was 30 years old and with a record of 32-2-1 (24), and Trinidad was 28 years old and with a record of 39-0 (32). Joppy lost the fight via 5th-round TKO and lost the title.
On August 23, 1997 William Joppy met Julio César Green in a middleweight (WBA) world-title defense fight. Joppy was 26 years old and with a record of 24-1-1 (19), and Green was 30 years old and with a record of 21-2 (15). Joppy lost the fight via 12-round unanimous decision and lost the title.