JOHN RUIZ
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| a.k.a.: | |
| WEIGHT CLASS: | UNKNOWN |
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| LAST FIGHT: | April 3, 2010 |
| LAST WEIGH-IN: | 231 |
| W-L-D | RND | FIGHTER | DATE | TITLE |
| W TKO | 11 | Fres Oquendo | 2004-04-17 | WBA World heavyweight |
| L MD | 12 | Nikolay Valuev | 2005-12-17 | WBA World heavyweight |
| L UD | 12 | Nikolay Valuev | 2008-08-30 | vacant WBA World heavyweight |
| L TKO | 9 | David Haye | 2010-04-03 | WBA World heavyweight |