| 2019-04-27 | UFC Fight Night: Jacaré vs. Hermansson | Bantamweight | Cory Sandhagen def. John Lineker | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2018-05-12 | UFC 224: Nunes vs. Pennington | Bantamweight | John Lineker def. Brian Kelleher | KO (punch) | 3 | 3:43 |
| 2017-10-28 | UFC Fight Night: Brunson vs. Machida | Bantamweight | John Lineker def. Marlon Vera | Decision (unanimous) (30–27, 29–28, 29–28) | 3 | 5:00 |
| 2016-12-30 | UFC 207: Nunes vs. Rousey | Bantamweight | T.J. Dillashaw def. John Lineker | Decision (unanimous) (30–26, 30–26, 30–26) | 3 | 5:00 |
| 2016-10-01 | UFC Fight Night: Lineker vs. Dodson | Catchweight | John Lineker def. John Dodson | Decision (split) (47–48, 48–47, 48–47) | 5 | 5:00 |
| 2016-07-13 | UFC Fight Night: McDonald vs. Lineker | Bantamweight | John Lineker def. Michael McDonald | KO (punches) | 1 | 2:43 |
| 2016-05-14 | UFC 198: Werdum vs. Miocic | Bantamweight | John Lineker def. Rob Font | Decision (unanimous) (30–27, 29–28, 30–26) | 3 | 5:00 |
| 2015-09-05 | UFC 191: Johnson vs. Dodson 2 | Bantamweight | John Lineker def. Francisco Rivera | Submission (guillotine choke) | 1 | 2:08 |
| 2015-01-31 | UFC 183: Silva vs. Diaz | Catchweight | John Lineker def. Ian McCall | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2014-07-16 | UFC Fight Night: Cowboy vs. Miller | Flyweight | John Lineker def. Alp Ozkilic | TKO (punches) | 3 | 4:51 |
| 2014-02-01 | UFC 169: Barão vs. Faber 2 | Flyweight | Ali Bagautinov def. John Lineker | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2013-10-26 | UFC Fight Night: Machida vs. Muñoz | Catchweight | John Lineker def. Phil Harris | TKO (punches) | 1 | 2:51 |
| 2013-08-03 | UFC 163: Aldo vs. Korean Zombie | Catchweight | John Lineker def. José Maria Tomé | TKO (punches) | 2 | 1:03 |
| 2013-05-18 | UFC on FX: Belfort vs. Rockhold | Flyweight | John Lineker def. Azamat Gashimov | TKO (punches) | 2 | 1:07 |
| 2012-11-10 | UFC on Fuel TV: Franklin vs. Le | Flyweight | John Lineker def. Yasuhiro Urushitani | Decision (unanimous) (29–28, 30–27, 29–28) | 3 | 5:00 |
| 2012-05-05 | UFC on Fox: Diaz vs. Miller | Catchweight | Louis Gaudinot def. John Lineker | Technical Submission (guillotine choke) | 2 | 4:54 |