| 2011-04-30 | UFC 129: St-Pierre vs. Shields | Light Heavyweight | Lyoto Machida def. Randy Couture | KO (crane kick) | 2 | 1:05 |
| 2010-08-28 | UFC 118: Edgar vs. Penn 2 | Heavyweight | Randy Couture def. James Toney | Submission (arm-triangle choke) | 1 | 3:19 |
| 2010-02-06 | UFC 109: Relentless | Light Heavyweight | Randy Couture def. Mark Coleman | Submission (rear-naked choke) | 2 | 1:09 |
| 2009-11-14 | UFC 105: Couture vs. Vera | Light Heavyweight | Randy Couture def. Brandon Vera | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2009-08-29 | UFC 102: Couture vs. Nogueira | Heavyweight | Antônio Rodrigo Nogueira def. Randy Couture | Decision (unanimous) (30–27, 30–27, 29–28) | 3 | 5:00 |
| 2008-11-15 | UFC 91: Couture vs. Lesnar | Heavyweight | Brock Lesnar def. Randy Couture title | TKO (punches) | 2 | 3:07 |
| 2007-08-25 | UFC 74: Respect | Heavyweight | Randy Couture def. Gabriel Gonzaga title | TKO (punches) | 3 | 1:37 |
| 2007-03-03 | UFC 68: The Uprising | Heavyweight | Randy Couture def. Tim Sylvia title | Decision (unanimous) (50–45, 50–45, 50–45) | 5 | 5:00 |
| 2006-02-04 | UFC 57: Liddell vs. Couture 3 | Light Heavyweight | Chuck Liddell def. Randy Couture title | KO (punch) | 2 | 1:28 |
| 2005-08-20 | UFC 54: Boiling Point | Light Heavyweight | Randy Couture def. Mike van Arsdale | Submission (anaconda choke) | 3 | 0:52 |
| 2005-04-16 | UFC 52: Couture vs. Liddell | Light Heavyweight | Chuck Liddell def. Randy Couture title | KO (punches) | 1 | 2:06 |
| 2004-08-21 | UFC 49: Unfinished Business | Light Heavyweight | Randy Couture def. Vitor Belfort title | TKO (doctor stoppage) | 3 | 5:00 |
| 2004-01-31 | UFC 46: Supernatural | Light Heavyweight | Vitor Belfort def. Randy Couture title | TKO (doctor stoppage) | 1 | 0:49 |
| 2003-09-26 | UFC 44: Undisputed | Light Heavyweight | Randy Couture def. Tito Ortiz title | Decision (unanimous) (50–44, 50–44, 50–45) | 5 | 5:00 |
| 2003-06-06 | UFC 43: Meltdown | Light Heavyweight | Randy Couture def. Chuck Liddell title | TKO (punches) | 3 | 2:39 |
| 2002-09-27 | UFC 39: The Warriors Return | Heavyweight | Ricco Rodriguez def. Randy Couture title | TKO (submission due to elbows) | 5 | 3:04 |
| 2002-03-22 | UFC 36: Worlds Collide | Heavyweight | Josh Barnett def. Randy Couture title | TKO (punches) | 2 | 4:35 |
| 2001-11-02 | UFC 34: High Voltage | Heavyweight | Randy Couture def. Pedro Rizzo title | TKO (punches) | 3 | 3:38 |
| 2001-05-04 | UFC 31: Locked and Loaded | Heavyweight | Randy Couture def. Pedro Rizzo title | Decision (unanimous) | 5 | 5:00 |
| 2000-11-17 | UFC 28: High Stakes | Heavyweight | Randy Couture def. Kevin Randleman title | TKO (punches) | 3 | 4:13 |
| 1997-12-21 | UFC Japan: Ultimate Japan | Heavyweight | Randy Couture def. Maurice Smith title | Decision (majority) | 1 | 21:00 |
| 1997-10-17 | UFC 15: Collision Course | Heavyweight | Randy Couture def. Vitor Belfort title | TKO (punches) | | 8:16 |
| 1997-05-30 | UFC 13: The Ultimate Force | Heavyweight | Randy Couture def. Steven Graham | TKO (punches) | | 3:13 |
| 1997-05-30 | UFC 13: The Ultimate Force | Heavyweight | Randy Couture def. Tony Halme | Submission (rear-naked choke) | | 1:00 |