| 2017-11-11 | UFC Fight Night: Poirier vs. Pettis | Middleweight | Cezar Ferreira def. Nate Marquardt | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2017-06-03 | UFC 212: Aldo vs. Holloway | Middleweight | Vitor Belfort def. Nate Marquardt | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2017-01-28 | UFC on Fox: Shevchenko vs. Peña | Middleweight | Sam Alvey def. Nate Marquardt | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2016-10-01 | UFC Fight Night: Lineker vs. Dodson | Middleweight | Nate Marquardt def. Tamdan McCrory | KO (punch and head kick) | 2 | 4:44 |
| 2016-05-14 | UFC 198: Werdum vs. Miocic | Middleweight | Thiago Santos def. Nate Marquardt | KO (punches) | 1 | 3:39 |
| 2015-12-19 | UFC on Fox: dos Anjos vs. Cowboy 2 | Middleweight | Nate Marquardt def. C. B. Dollaway | KO (punch) | 2 | 0:28 |
| 2015-06-13 | UFC 188: Velasquez vs. Werdum | Middleweight | Kelvin Gastelum def. Nate Marquardt | TKO (corner stoppage) | 2 | 5:00 |
| 2015-01-03 | UFC 182: Jones vs. Cormier | Middleweight | Brad Tavares def. Nate Marquardt | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2014-06-28 | UFC Fight Night: Te Huna vs. Marquardt | Middleweight | Nate Marquardt def. James Te Huna | Submission (armbar) | 1 | 4:34 |
| 2013-10-19 | UFC 166: Velasquez vs. dos Santos III | Welterweight | Hector Lombard def. Nate Marquardt | KO (punches) | 1 | 1:48 |
| 2013-03-16 | UFC 158: St-Pierre vs. Diaz | Welterweight | Jake Ellenberger def. Nate Marquardt | KO (punches) | 1 | 3:00 |
| 2011-03-19 | UFC 128: Shogun vs. Jones | Middleweight | Nate Marquardt def. Dan Miller | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2010-11-13 | UFC 122: Marquardt vs. Okami | Middleweight | Yushin Okami def. Nate Marquardt | Decision (unanimous) (29–28, 30–27, 29–28) | 3 | 5:00 |
| 2010-09-15 | UFC Fight Night: Marquardt vs. Palhares | Middleweight | Nate Marquardt def. Rousimar Palhares | TKO (punches) | 1 | 3:28 |
| 2010-02-06 | UFC 109: Relentless | Middleweight | Chael Sonnen def. Nate Marquardt | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2009-08-29 | UFC 102: Couture vs. Nogueira | Middleweight | Nate Marquardt def. Demian Maia | KO (punch) | 1 | 0:21 |
| 2009-02-21 | UFC 95: Sanchez vs. Stevenson | Middleweight | Nate Marquardt def. Wilson Gouveia | TKO (knee and punches) | 3 | 3:10 |
| 2008-09-06 | UFC 88: Breakthrough | Middleweight | Nate Marquardt def. Martin Kampmann | TKO (punches) | 1 | 1:22 |
| 2008-06-07 | UFC 85: Bedlam | Middleweight | Thales Leites def. Nate Marquardt | Decision (split) (28–27, 27–28, 28–27) | 3 | 5:00 |
| 2008-02-02 | UFC 81: Breaking Point | Middleweight | Nate Marquardt def. Jeremy Horn | Submission (guillotine choke) | 2 | 1:37 |
| 2007-07-07 | UFC 73: Stacked | Middleweight | Anderson Silva def. Nate Marquardt title | TKO (punches) | 1 | 4:50 |
| 2007-01-25 | UFC Fight Night: Evans vs. Salmon | Middleweight | Nate Marquardt def. Dean Lister | Decision (unanimous) (30–27, 30–25, 30–25) | 3 | 5:00 |
| 2006-10-10 | UFC Fight Night 6.5 | Middleweight | Nate Marquardt def. Crafton Wallace | Submission (rear-naked choke) | 2 | 1:14 |
| 2006-03-04 | UFC 58: USA vs. Canada | Middleweight | Nate Marquardt def. Joe Doerksen | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2005-08-06 | UFC Ultimate Fight Night | Middleweight | Nate Marquardt def. Ivan Salaverry | Decision (unanimous) (30–27, 30–27, 29–28) | 3 | 5:00 |