| 23 Wins (7 knockouts, 16 decisions), 4 Losses (2 knockouts, 2 decisions), 1 Draw |
| Result | Record | Opponent | Type | Round, Time | Date | Location | Notes |
| Loss | 21-0 | United States Chad Dawson | UD | 12 | 2006-06-02 | United States Chumash Casino, Santa Ynez, California | WBC NABF Light Heavyweight Title. |
| Win | 20-0-3 | United States Daniel Judah | UD | 12 | 2005-10-21 | United States Mohegan Sun, Uncasville, Connecticut | WBC NABF Light Heavyweight Title. |
| Win | 29-5-1 | United States David Telesco | UD | 12 | 2005-02-11 | United States Mohegan Sun, Uncasville, Connecticut | IBF USBA Light Heavyweight Title. |
| Loss | 38-9-1 | Jamaica Glen Johnson | UD | 12 | 2003-05-18 | United States Jimmy's Bronx Cafe, Bronx, New York | IBF USBA Light Heavyweight Title. |
| Loss | 19-1 | United States Antonio Tarver | TKO | 5 (10), 0:43 | Jul 20, 2002 | United States Conseco Fieldhouse, Indianapolis, Indiana | Referee stopped the bout at 0:43 of the fifth round. |
| Win | 16-0 | United States George Khalid Jones | TKO | 7 (10), 0:53 | 2001-12-14 | United States Mohegan Sun, Uncasville, Connecticut | Referee stopped the bout at 0:53 of the seventh round. |
| Win | 20-5-1 | United States Demetrius Jenkins | UD | 10 | 2001-06-29 | United States Grand Casino Gulfport, Gulfport, Mississippi | |
| Loss | 42-1 | United States Roy Jones Jr. | RTD | 10 (12), 3:00 | 2000-09-09 | United States New Orleans Arena, New Orleans, Louisiana | WBC/WBA/IBF/IBO Light Heavyweight Titles. Harding did not come out for the 11th round. |
| Win | 16-0 | United States Antonio Tarver | UD | 12 | 2000-06-23 | United States Grand Casino Biloxi, Biloxi, Mississippi | |
| Win | 6-4-3 | United States Leon A. Gray | KO | 7 (10) | 1999-11-05 | United States Pechanga Resort and Casino, Temecula, California | |
| Win | 18-3-1 | United States Ray Berry | UD | 10 | 1999-10-08 | United States Hauppauge, New York | |
| Win | 9-6 | Guyana Pascal David | TKO | 6 (?) | 1999-05-16 | United States Eastwood Theatre, Hartford, Connecticut | |
| Win | 34-1 | United States Montell Griffin | SD | 12 | 1998-11-13 | United States Miccosukee Resort and Gaming, Miami, Florida | WBC NABF Light Heavyweight Title. |
| Win | 9-4 | United States Dave Hamilton | TKO | 2 (10) | 1998-08-02 | United States Fleet Center, Boston, Massachusetts | |
| Win | 9-3-1 | United States Levan Easley | UD | 6 | 1998-04-14 | United States Foxwoods, Mashantucket, Connecticut | |
| Win | 5-2 | Jamaica Richard Grant | PTS | 8 | 1997-12-18 | United States Dressler Arena, Hartford, Connecticut | |
| Win | 5-4-1 | United States Steve Detar | UD | 8 | 1997-11-01 | United States Foxwoods, Mashantucket, Connecticut | |
| Win | 5-0 | Egypt Kabary Salem | UD | 6 | 1997-08-29 | United States Saratoga Performing Arts Center, Saratoga Springs, New York | |
| Win | 10-2-2 | United States Beethaeven Scottland | PTS | 8 | 1997-06-29 | United States Dressler Arena, Hartford, Connecticut | |
| Win | 5-1-3 | Puerto Rico Hector Sanjurjo | PTS | 6 | 1997-02-20 | United States Foxwoods, Mashantucket, Connecticut | |
| Win | 10-1-2 | United States Beethaeven Scottland | UD | 4 | 1997-01-10 | United States Mohegan Sun, Uncasville, Connecticut | |
| Win | 6-1 | United States Ed Bryant | UD | 6 | 1995-12-08 | United States Foxwoods, Mashantucket, Connecticut | |
| Win | 1-2 | Puerto Rico Roberto Perez | TKO | 3 (?) | 1995-10-03 | United States Foxwoods, Mashantucket, Connecticut | |
| Win | 4-0-1 | Ghana Junior Neequaye | PTS | 6 | 1995-08-17 | United States Caesars Atlantic City, Atlantic City, New Jersey | |
| Win | 5-0-1 | United States Pat Pernsley | UD | 4 | 1995-06-06 | United States The Blue Horizon, Philadelphia, Pennsylvania | |
| Win | 0-2 | United States Reinaldo Almodovar | KO | 1 (4) | 1995-02-10 | United States The Blue Horizon, Philadelphia, Pennsylvania | |
| Win | -- | United States Jermain Dixon | KO | 1 (?) | 1991-09-27 | United States The Blue Horizon, Philadelphia, Pennsylvania | |
| Win | 9-41-2 | United States Robert Thomas | PTS | 4 | 1991-08-28 | United States Philadelphia, Pennsylvania | |