Records reflect official UFC bouts only. None of the regular-season fights in the Ultimate Fighter house are included.
Octagon Time
Most total fight time in UFC
| Fighter | Octagon Time (hh:mm:ss) | Record (W-L-D) |
| Frankie Edgar | 7:55:11 | 18-10-1 |
| Rafael dos Anjos | 7:33:11 | 20-11-0 |
| Demian Maia | 6:49:40 | 22-11-0 |
| Diego Sanchez | 6:37:07 | 19-13-0 |
| Jeremy Stephens | 6:29:34 | 15-18-0 |
| Max Holloway | 6:25:47 | 19-6-0 |
| Jim Miller | 6:21:24 | 23-15-0 |
| Clay Guida | 6:14:16 | 17-16-0 |
| Andrei Arlovski | 6:09:58 | 23-14-0 |
| Michael Bisping | 6:05:13 | 20-9-0 |
| B.J. Penn | 5:56:17 | 12-13-2 |
| Donald Cerrone | 5:50:15 | 23-13-0 |
| Georges St. Pierre | 5:42:35 | 20-2-0 |
| Jon Jones | 5:40:15 | 20-1-0 |
| Neil Magny | 5:34:48 | 19-7-0 |
| Demetrious Johnson | 5:34:12 | 15-2-1 |
| Jose Aldo | 5:19:43 | 13-6-0 |
| Nate Diaz | 5:19:27 | 15-11-0 |
| Edson Barboza | 5:14:10 | 16-11-0 |
| Nik Lentz | 5:13:59 | 14-9-1 |
| Alex Caceres | 5:12:42 | 14-11-0 |
| Gleison Tibau | 5:08:57 | 16-11-0 |
| Robbie Lawler | 5:08:00 | 14-9-0 |
| Darren Elkins | 5:03:51 | 17-9-0 |
| Ross Pearson | 5:02:45 | 12-13-0 |
Shortest average fight (5 UFC fights minimum)
| Fighter | Average Fight Time (m:ss) | Record (W-L-D) |
| Patrick Smith | 1:08 | 4-2-0 |
| Drew McFedries | 2:20 | 4-5-0 |
| Jordan Wright | 2:23 | 2-3-0 |
| James Irvin | 2:53 | 4-6-0 |
| Tom Aspinall | 2:57 | 5-0-0 |
| Brian Johnston | 2:58 | 2-4-0 |
| Mark Hall | 3:03 | 4-3-0 |
| Ronda Rousey | 3:06 | 6-2-0 |
| Cyril Asker | 3:24 | 2-3-0 |
| Todd Duffee | 3:25 | 3-2-0, 1 NC |
| Gadzhimurad Antigulov | 3:27 | 2-4-0 |
| Chris Daukaus | 3:44 | 4-2-0 |
| Dave Beneteau | 3:48 | 3-3-0 |
| Frank Trigg | 3:55 | 2-5-0 |
| Isaac Villanueva | 4:11 | 1-5-0 |
| Houston Alexander | 4:12 | 2-4-0 |
| Ryan Jensen | 4:15 | 2-6-0 |
| Yoshiyuki Yoshida | 4:15 | 2-3-0 |
| John Albert | 4:24 | 1-4-0 |
| Khama Worthy | 4:27 | 2-3-0 |
| Jimmy Crute | 4:39 | 4-3-0 |
| Megan Anderson | 4:49 | 3-3-0 |
| Paul Varelans | 4:54 | 4-4-0 |
| Brian Foster | 4:55 | 3-2-0 |
| Shane Carwin | 4:55 | 4-2-0 |
Longest average fight (5 UFC fights minimum)
| Fighter | Average Fight Time (m:ss) | Record (W-L-D) |
| Joanna Jedrzejczyk | 19:24 | 10-4-0 |
| Demetrious Johnson | 18:34 | 15-2-1 |
| Dominick Cruz | 18:27 | 7-2-0 |
| Ben Henderson | 18:01 | 11-3-0 |
| Holly Holm | 17:41 | 7-6-0 |
| Israel Adesanya | 17:35 | 11-1-0 |
| Jose Aldo | 16:50 | 13-6-0 |
| Valentina Shevchenko | 16:45 | 11-2-0 |
| Blagoy Ivanov | 16:40 | 3-3-0 |
| Kamaru Usman | 16:40 | 15-0-0 |
| Kevin Randleman | 16:39 | 4-3-0 |
| Marvin Vettori | 16:34 | 8-3-1 |
| Colby Covington | 16:34 | 12-3-0 |
| Artem Lobov | 16:26 | 2-5-0 |
| Frankie Edgar | 16:23 | 18-10-1 |
| Ciryl Gane | 16:20 | 7-1-0 |
| Valerie Letourneau | 16:18 | 3-3-0 |
| Marina Rodriguez | 16:13 | 6-1-2 |
| Ali Bagautinov | 16:13 | 4-3-0 |
| Petr Yan | 16:12 | 8-2-0 |
| Alexander Volkanovski | 16:06 | 11-0-0 |
| Tarec Saffiedine | 16:05 | 2-4-0 |
| Michelle Waterson | 15:48 | 6-5-0 |
| Jake Shields | 15:44 | 4-3-0, 1 NC |
| Sean Sherk | 15:35 | 8-4-0 |
Records reflect official UFC bouts only. None of the regular-season fights in the Ultimate Fighter house are included.
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