Here is a list of Ruiz's best fights. For a list of Ruiz's losses, refer to "John Ruiz Losses".
On November 13, 2004 John Ruiz met Andrew Golota in a heavyweight (WBA) world-title defense fight. Ruiz was 32 years old and with a record of 41-5-1 (28), and Golota was 36 years old and with a record of 38-4-1 (31). Ruiz won the fight via 12-round unanimous decision and successfully defended his title.
On March 3, 2001 John Ruiz fought Evander Holyfield in a heavyweight world-title fight for Holyfield's WBA title. Ruiz was 29 years old and with a record of 37-4 (27), and Holyfield was 38 years old and with a record of 37-4-1 (25). Ruiz won the fight via 12-round unanimous decision and is crowned the new heavyweight world champion.
On December 13, 2003 John Ruiz fought Hasim Rahman in a heavyweight world-title fight for Rahman's WBA title. Ruiz was 31 years old and with a record of 39-5-1 (27), and Rahman was 31 years old and with a record of 35-4-1 (29). Ruiz won the fight via 12-round unanimous decision and is crowned the new heavyweight world champion.
On March 8, 2008 John Ruiz faced off against Jameel McCline in a heavyweight bout at age 36. He was coming in with a record of 43-7-1 (29), and McCline was 37 years old and with a record of 38-8-3 (23). Ruiz won the fight via 12-round unanimous decision.
On January 31, 1998 John Ruiz faced off against Tony Tucker in a heavyweight bout at age 26. He was coming in with a record of 32-3 (23), and Tucker was 39 years old and with a record of 56-6 (46). Ruiz stopped Tony Tucker via TKO.
On April 17, 2004 John Ruiz met Fres Oquendo in a heavyweight (WBA) world-title defense fight. Ruiz was 32 years old and with a record of 40-5-1 (28), and Oquendo was 31 years old and with a record of 24-2 (15). Ruiz stopped Fres Oquendo via 11th-round TKO and successfully defended his title.
On June 17, 1997 John Ruiz faced off against Ray Anis in a heavyweight bout at age 25. He was coming in with a record of 31-3 (22). Ruiz stopped Ray Anis via TKO.
On June 16, 1995 John Ruiz faced off against Derrick Roddy in a heavyweight bout at age 23. He was coming in with a record of 23-2 (15). Ruiz stopped Derrick Roddy via KO.
On December 11, 1999 John Ruiz faced off against Thomas Williams in a heavyweight bout at age 27. He was coming in with a record of 36-3 (27). Ruiz stopped Thomas Williams via TKO.
