| 2023-07-01 | UFC on ESPN: Strickland vs. Magomedov | Welterweight | Rinat Fakhretdinov def. Kevin Lee | Technical Submission (guillotine choke) | 1 | 0:55 |
| 2021-08-28 | UFC on ESPN: Barboza vs. Chikadze | Welterweight | Daniel Rodriguez def. Kevin Lee | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2020-03-14 | UFC Fight Night: Lee vs. Oliveira | Catchweight | Charles Oliveira def. Kevin Lee | Submission (guillotine choke) | 3 | 0:28 |
| 2019-11-02 | UFC 244: Masvidal vs. Diaz | Lightweight | Kevin Lee def. Gregor Gillespie | KO (head kick) | 1 | 2:47 |
| 2019-05-18 | UFC Fight Night: dos Anjos vs. Lee | Welterweight | Rafael dos Anjos def. Kevin Lee | Submission (arm-triangle choke) | 4 | 3:47 |
| 2018-12-15 | UFC on Fox: Lee vs. Iaquinta 2 | Lightweight | Al Iaquinta def. Kevin Lee | Decision (unanimous) (48–47, 48–47, 49–46) | 5 | 5:00 |
| 2018-04-21 | UFC Fight Night: Barboza vs. Lee | Catchweight | Kevin Lee def. Edson Barboza | TKO (doctor stoppage) | 5 | 2:18 |
| 2017-10-07 | UFC 216: Ferguson vs. Lee | Lightweight | Tony Ferguson def. Kevin Lee title | Submission (triangle choke) | 3 | 4:02 |
| 2017-06-25 | UFC Fight Night: Chiesa vs. Lee | Lightweight | Kevin Lee def. Michael Chiesa | Technical Submission (rear-naked choke) | 1 | 4:37 |
| 2017-03-11 | UFC Fight Night: Belfort vs. Gastelum | Lightweight | Kevin Lee def. Francisco Trinaldo | Submission (rear-naked choke) | 2 | 3:12 |
| 2016-11-19 | UFC Fight Night: Mousasi vs. Hall 2 | Lightweight | Kevin Lee def. Magomed Mustafaev | Technical Submission (rear-naked choke) | 2 | 4:31 |
| 2016-07-08 | The Ultimate Fighter: Team Joanna vs. Team Cláudia Finale | Lightweight | Kevin Lee def. Jake Matthews | TKO (punches) | 1 | 4:06 |
| 2016-04-23 | UFC 197: Jones vs. Saint Preux | Lightweight | Kevin Lee def. Efraín Escudero | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2015-12-12 | UFC 194: Aldo vs. McGregor | Lightweight | Leonardo Santos def. Kevin Lee | TKO (punches) | 1 | 3:26 |
| 2015-07-15 | UFC Fight Night: Mir vs. Duffee | Lightweight | Kevin Lee def. James Moontasri | Submission (rear-naked choke) | 1 | 2:56 |
| 2015-02-14 | UFC Fight Night: Henderson vs. Thatch | Lightweight | Kevin Lee def. Michel Prazeres | Decision (unanimous) (30–27, 29–28, 30–27) | 3 | 5:00 |
| 2014-09-27 | UFC 178: Johnson vs. Cariaso | Lightweight | Kevin Lee def. Jon Tuck | Decision (unanimous) (30–26, 30–26, 30–26) | 3 | 5:00 |
| 2014-07-06 | The Ultimate Fighter: Team Edgar vs. Team Penn Finale | Lightweight | Kevin Lee def. Jesse Ronson | Decision (split) (29-28, 28–29, 30–27) | 3 | 5:00 |
| 2014-02-01 | UFC 169: Barão vs. Faber 2 | Lightweight | Al Iaquinta def. Kevin Lee | Decision (unanimous) (29–28, 29–28, 28–27) | 3 | 5:00 |