| 2015-03-21 | UFC Fight Night: Maia vs. LaFlare | Welterweight | Erick Silva def. Josh Koscheck | Submission (guillotine choke) | 1 | 4:21 |
| 2015-02-28 | UFC 184: Rousey vs. Zingano | Welterweight | Jake Ellenberger def. Josh Koscheck | Submission (north-south choke) | 2 | 4:20 |
| 2013-11-16 | UFC 167: St-Pierre vs. Hendricks | Welterweight | Tyron Woodley def. Josh Koscheck | KO (punches) | 1 | 4:38 |
| 2013-02-23 | UFC 157: Rousey vs. Carmouche | Welterweight | Robbie Lawler def. Josh Koscheck | TKO (knee and punches) | 1 | 3:57 |
| 2012-05-05 | UFC on Fox: Diaz vs. Miller | Welterweight | Johny Hendricks def. Josh Koscheck | Decision (split) (29–28, 28–29, 29–28) | 3 | 5:00 |
| 2012-02-04 | UFC 143: Diaz vs. Condit | Welterweight | Josh Koscheck def. Mike Pierce | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2011-09-24 | UFC 135: Jones vs. Rampage | Welterweight | Josh Koscheck def. Matt Hughes | KO (punches) | 1 | 4:59 |
| 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 |
| 2010-05-08 | UFC 113: Machida vs. Shogun 2 | Welterweight | Josh Koscheck def. Paul Daley | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2009-11-21 | UFC 106: Ortiz vs. Griffin 2 | Welterweight | Josh Koscheck def. Anthony Johnson | Submission (rear-naked choke) | 2 | 4:47 |
| 2009-09-19 | UFC 103: Franklin vs. Belfort | Welterweight | Josh Koscheck def. Frank Trigg | TKO (punches) | 1 | 1:25 |
| 2009-02-21 | UFC 95: Sanchez vs. Stevenson | Welterweight | Paulo Thiago def. Josh Koscheck | KO (punch) | 1 | 3:29 |
| 2008-12-10 | UFC: Fight for the Troops | Welterweight | Josh Koscheck def. Yoshiyuki Yoshida | KO (punch) | 1 | 2:15 |
| 2008-10-25 | UFC 90: Silva vs. Côté | Welterweight | Thiago Alves def. Josh Koscheck | Decision (unanimous) (30–27, 29–28, 30–27) | 3 | 5:00 |
| 2008-07-05 | UFC 86: Jackson vs. Griffin | Welterweight | Josh Koscheck def. Chris Lytle | Decision (unanimous) | 3 | 5:00 |
| 2008-03-01 | UFC 82: Pride of a Champion | Welterweight | Josh Koscheck def. Dustin Hazelett | TKO (head kick and punches) | 2 | 1:24 |
| 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 | Josh Koscheck def. Diego Sanchez | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2006-12-13 | UFC Fight Night: Sanchez vs. Riggs | Welterweight | Josh Koscheck def. Jeff Joslin | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2006-08-17 | UFC Fight Night 6 | Welterweight | Josh Koscheck def. Jonathan Goulet | Submission (punches) | 1 | 4:10 |
| 2006-06-28 | UFC Ultimate Fight Night 5 | Welterweight | Josh Koscheck def. Dave Menne | Decision (unanimous) (30–27, 29–28, 30–27) | 3 | 5:00 |
| 2006-04-06 | UFC Ultimate Fight Night 4 | Welterweight | Josh Koscheck def. Ansar Chalangov | Submission (rear-naked choke) | 1 | 3:29 |
| 2005-10-03 | UFC Ultimate Fight Night 2 | Welterweight | Drew Fickett def. Josh Koscheck | Technical Submission (rear-naked choke) | 3 | 4:28 |
| 2005-08-06 | UFC Ultimate Fight Night | Welterweight | Josh Koscheck def. Pete Spratt | Submission (rear-naked choke) | 1 | 1:53 |
| 2005-04-09 | The Ultimate Fighter: Team Couture vs. Team Liddell Finale | Middleweight | Josh Koscheck def. Chris Sanford | KO (punch) | 1 | 4:21 |