| 2017-11-04 | UFC 217: Bisping vs. St-Pierre | Middleweight | Georges St-Pierre def. Michael Bisping title | Technical Submission (rear-naked choke) | 3 | 4:23 |
| 2013-11-16 | UFC 167: St-Pierre vs. Hendricks | Welterweight | Georges St-Pierre def. Johny Hendricks title | Decision (split) (47–48, 48–47, 48–47) | 5 | 5:00 |
| 2013-03-16 | UFC 158: St-Pierre vs. Diaz | Welterweight | Georges St-Pierre def. Nick Diaz title | Decision (unanimous) (50–45, 50–45, 50–45) | 5 | 5:00 |
| 2012-11-17 | UFC 154: St-Pierre vs. Condit | Welterweight | Georges St-Pierre def. Carlos Condit title | Decision (unanimous) (49–46, 50–45, 50–45) | 5 | 5:00 |
| 2011-04-30 | UFC 129: St-Pierre vs. Shields | Welterweight | Georges St-Pierre def. Jake Shields title | Decision (unanimous) (48–47, 50–45, 48–47) | 5 | 5:00 |
| 2010-12-11 | UFC 124: St-Pierre vs. Koscheck 2 | Welterweight | Georges St-Pierre def. Josh Koscheck title | Decision (unanimous) (50–45, 50–45, 50–45) | 5 | 5:00 |
| 2010-03-27 | UFC 111: St-Pierre vs. Hardy | Welterweight | Georges St-Pierre def. Dan Hardy title | Decision (unanimous) (50–43, 50–44, 50–45) | 5 | 5:00 |
| 2009-07-11 | UFC 100 | Welterweight | Georges St-Pierre def. Thiago Alves title | Decision (unanimous) (50–45, 50–44, 50–45) | 5 | 5:00 |
| 2009-01-31 | UFC 94: St-Pierre vs. Penn 2 | Welterweight | Georges St-Pierre def. B.J. Penn title | TKO (corner stoppage) | 4 | 5:00 |
| 2008-08-09 | UFC 87: Seek and Destroy | Welterweight | Georges St-Pierre def. Jon Fitch title | Decision (unanimous) (50–43, 50–44, 50–44) | 5 | 5:00 |
| 2008-04-19 | UFC 83: Serra vs. St-Pierre 2 | Welterweight | Georges St-Pierre def. Matt Serra title | TKO (knees) | 2 | 4:45 |
| 2007-12-29 | UFC 79: Nemesis | Welterweight | Georges St-Pierre def. Matt Hughes title | Submission (armbar) | 2 | 4:54 |
| 2007-08-25 | UFC 74: Respect | Welterweight | Georges St-Pierre def. Josh Koscheck | Decision (unanimous) (30–27, 29–28, 29–28) | 3 | 5:00 |
| 2007-04-07 | UFC 69: Shootout | Welterweight | Matt Serra def. Georges St-Pierre title | TKO (punches) | 1 | 3:25 |
| 2006-11-18 | UFC 65: Bad Intentions | Welterweight | Georges St-Pierre def. Matt Hughes title | TKO (head kick and punches) | 2 | 1:25 |
| 2006-03-04 | UFC 58: USA vs. Canada | Welterweight | Georges St-Pierre def. B.J. Penn | Decision (split) (29–28, 28–29, 29–28) | 3 | 5:00 |
| 2005-11-19 | UFC 56: Full Force | Welterweight | Georges St-Pierre def. Sean Sherk | TKO (punches and elbows) | 2 | 2:53 |
| 2005-08-20 | UFC 54: Boiling Point | Welterweight | Georges St-Pierre def. Frank Trigg | Submission (rear-naked choke) | 1 | 4:09 |
| 2005-04-16 | UFC 52: Couture vs. Liddell | Welterweight | Georges St-Pierre def. Jason Miller | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2004-10-22 | UFC 50: The War of '04 | Welterweight | Matt Hughes def. Georges St-Pierre title | Submission (armbar) | 1 | 4:59 |
| 2004-06-19 | UFC 48: Payback | Welterweight | Georges St-Pierre def. Jay Hieron | TKO (punches) | 1 | 1:42 |
| 2004-01-31 | UFC 46: Supernatural | Welterweight | Georges St-Pierre def. Karo Parisyan | Decision (unanimous) (29–28, 30–27, 30–27) | 3 | 5:00 |