Records reflect official UFC bouts only. None of the regular-season fights in the Ultimate Fighter house are included.
Most total fight time in UFC
| Fighter | Octagon Time (hh:mm:ss) | Record (W-L-D) |
| Frankie Edgar | 7:40:53 | 18-8-1 |
| Rafael dos Anjos | 7:08:11 | 19-11-0 |
| Diego Sanchez | 6:37:07 | 19-13-0 |
| Demian Maia | 6:34:40 | 22-10-0 |
| Jeremy Stephens | 6:28:29 | 15-17-0 |
| Michael Bisping | 6:05:13 | 20-9-0 |
| B.J. Penn | 5:56:17 | 12-13-2 |
| Jim Miller | 5:54:12 | 21-14-0 |
| Donald Cerrone | 5:45:35 | 23-12-1 |
| Georges St. Pierre | 5:42:35 | 20-2-0 |
| Jon Jones | 5:40:15 | 20-1-0 |
| Max Holloway | 5:35:47 | 17-6-0 |
| Clay Guida | 5:34:54 | 15-14-0 |
| Demetrious Johnson | 5:34:12 | 15-2-1 |
| Gleison Tibau | 5:08:57 | 16-11-0 |
| Andrei Arlovski | 5:03:49 | 19-13-0 |
| Ross Pearson | 5:02:45 | 12-13-0 |
| Nik Lentz | 4:58:59 | 14-8-1 |
| Robbie Lawler | 4:57:16 | 13-9-0 |
| Thiago Alves | 4:56:47 | 15-12-0 |
| Nate Diaz | 4:54:27 | 15-10-0 |
| Rashad Evans | 4:48:36 | 14-8-1 |
| Tito Ortiz | 4:47:22 | 15-11-1 |
| Lyoto Machida | 4:45:45 | 16-8-0 |
| Randy Couture | 4:40:06 | 16-8-0 |
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 |
| James Irvin | 2:53 | 4-6-0 |
| 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 |
| Johnny Walker | 3:47 | 4-2-0 |
| Dave Beneteau | 3:48 | 3-3-0 |
| Frank Trigg | 3:55 | 2-5-0 |
| Misha Cirkunov | 4:09 | 6-3-0 |
| 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 |
| Marcos Rogerio de Lima | 4:26 | 6-5-0 |
| Paul Varelans | 4:54 | 4-4-0 |
| Brian Foster | 4:55 | 3-2-0 |
| Shane Carwin | 4:55 | 4-2-0 |
| Pete Spratt | 4:58 | 3-4-0 |
| Anthony Birchak | 4:58 | 2-3-0 |
| Alessio Sakara | 5:02 | 6-8-0, 1 NC |
| Gary Goodridge | 5:04 | 4-4-0 |
Longest average fight (5 UFC fights minimum)
| Fighter | Average Fight Time (m:ss) | Record (W-L-D) |
| Dominick Cruz | 19:26 | 5-2-0 |
| Joanna Jedrzejczyk | 19:24 | 10-4-0 |
| Demetrious Johnson | 18:34 | 15-2-1 |
| Ben Henderson | 18:01 | 11-3-0 |
| Kamaru Usman | 17:21 | 12-0-0 |
| Valentina Shevchenko | 17:18 | 9-2-0 |
| Frankie Edgar | 17:04 | 18-8-1 |
| Holly Holm | 17:04 | 7-5-0 |
| Blagoy Ivanov | 17:00 | 2-3-0 |
| Kevin Randleman | 16:39 | 4-3-0 |
| Jose Aldo | 16:33 | 10-6-0 |
| Artem Lobov | 16:26 | 2-5-0 |
| Valerie Letourneau | 16:18 | 3-3-0 |
| Ali Bagautinov | 16:13 | 4-3-0 |
| Tarec Saffiedine | 16:05 | 2-4-0 |
| Jake Shields | 15:44 | 4-3-0, 1 NC |
| Sean Sherk | 15:35 | 8-4-0 |
| Georges St. Pierre | 15:34 | 20-2-0 |
| Jon Jones | 15:28 | 20-1-0, 1 NC |
| Roxanne Modafferi | 15:24 | 4-5-0 |
| Gilbert Melendez | 15:16 | 1-6-0 |
| Leon Edwards | 15:16 | 10-2-0 |
| Colby Covington | 15:16 | 11-2-0 |
| Alexander Volkov | 15:09 | 6-2-0 |
| Alexander Volkanovski | 15:09 | 9-0-0 |
Records reflect official UFC bouts only. None of the regular-season fights in the Ultimate Fighter house are included.
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