Walt Harris, a seasoned mixed martial artist, has competed in the UFC with an MMA record of 13-10-0 (1 NC) and a UFC record of 6-9-0. Weighing in at 250 lbs., Harris stands tall at 6' 5' with a reach of 77', fighting out of a southpaw stance. In terms of performance, Harris demonstrates an average of 3.05 significant strikes per minute during his UFC career, landing them with a striking accuracy of 39%. He absorbs an average of 3.33 strikes per minute and maintains a strike defense of 54%. Harris attempts an average of 0.1 submissions per 15 minutes in the octagon, while his takedown accuracy stands at 28% with an average of 0.29 takedowns per 15 minutes. Throughout his career, Harris has achieved notable victories, including a KO/TKO win against Aleksei Oleinik, who held an ELO rating of 1086 at the time. In his most recent five fights, Harris demonstrated a KO/TKO victory over Serghei Spivac in May 2019, followed by another KO/TKO win against Aleksei Oleinik in July 2019. However, he suffered losses to Alistair Overeem and Alexander Volkov in May 2020 and October 2020, respectively, both via KO/TKO. His most recent fight was a loss against Marcin Tybura in June 2021, also by KO/TKO.
| Date | Event | Opponent | Method | Round | Time | Result |
|---|---|---|---|---|---|---|
| 2021-06-05 | UFC Fight Night: Rozenstruik vs. Sakai | Marcin Tybura | KO/TKO Punches | 1 | 4:06 | Loss |
| 2020-10-24 | UFC 254: Khabib vs. Gaethje | Alexander Volkov | KO/TKO Kick | 2 | 1:15 | Loss |
| 2020-05-16 | UFC Fight Night: Overeem vs. Harris | Alistair Overeem | KO/TKO Punches | 2 | 3:00 | Loss |
| 2019-07-20 | UFC Fight Night: Dos Anjos vs. Edwards | Aleksei Oleinik | KO/TKO Punch | 1 | 0:12 | Win |
| 2019-05-04 | UFC Fight Night: Iaquinta vs. Cowboy | Serghei Spivac | KO/TKO Knees | 1 | 0:50 | Win |
| 2018-12-29 | UFC 232: Jones vs. Gustafsson 2 | Andrei Arlovski | Overturned | 3 | 5:00 | Loss |
| 2018-06-01 | UFC Fight Night: Rivera vs. Moraes | Daniel Spitz | KO/TKO Punches | 2 | 4:59 | Win |
| 2017-11-04 | UFC 217: Bisping vs. St-Pierre | Mark Godbeer | DQ | 1 | 4:29 | Loss |
| 2017-10-07 | UFC 216: Ferguson vs. Lee | Fabricio Werdum | SUB Armbar | 1 | 1:05 | Loss |
| 2017-06-17 | UFC Fight Night: Holm vs. Correia | Cyril Asker | KO/TKO Elbows | 1 | 1:44 | Win |
| 2017-01-15 | UFC Fight Night: Rodriguez vs. Penn | Chase Sherman | KO/TKO Knee | 2 | 2:41 | Win |
| 2016-10-01 | UFC Fight Night: Lineker vs. Dodson | Shamil Abdurakhimov | S-DEC | 3 | 5:00 | Loss |
| 2016-04-23 | UFC 197: Jones vs Saint Preux | Cody East | KO/TKO Punches | 1 | 4:18 | Win |
| 2014-11-07 | UFC Fight Night: Rockhold vs Bisping | Soa Palelei | KO/TKO Punches | 2 | 4:49 | Loss |
| 2014-01-25 | UFC on FOX: Henderson vs Thomson | Nikita Krylov | KO/TKO Kick | 1 | 0:25 | Loss |
| 2013-11-30 | The Ultimate Fighter: Team Rousey vs. Team Tate Finale | Jared Rosholt | U-DEC | 3 | 5:00 | Loss |
| Fight # | Date | Opponent Name | Opponent ELO | Result | ELO Gained | ELO |
|---|---|---|---|---|---|---|
| 16 | 2021-06-05 | Marcin Tybura | 1077 | Loss | -14 | 1028 |
| 15 | 2020-10-24 | Alexander Volkov | 1059 | Loss | -16 | 1042 |
| 14 | 2020-05-16 | Alistair Overeem | 1091 | Loss | -15 | 1058 |
| 13 | 2019-07-20 | Aleksei Oleinik | 1086 | Win | +23 | 1073 |
| 12 | 2019-05-04 | Serghei Spivac | 1000 | Win | +20 | 1050 |
| 11 | 2018-12-29 | Andrei Arlovski | 1073 | Loss | 0 | 1030 |
| 10 | 2018-06-01 | Daniel Spitz | 1004 | Win | +21 | 1030 |
| 9 | 2017-11-04 | Mark Godbeer | 1002 | Loss | 0 | 1009 |
| 8 | 2017-10-07 | Fabricio Werdum | 1138 | Loss | -11 | 1009 |
| 7 | 2017-06-17 | Cyril Asker | 1004 | Win | +21 | 1020 |
| 6 | 2017-01-15 | Chase Sherman | 984 | Win | +21 | 999 |
| 5 | 2016-10-01 | Shamil Abdurakhimov | 1001 | Loss | 0 | 978 |
| 4 | 2016-04-23 | Cody East | 1000 | Win | +23 | 978 |
| 3 | 2014-11-07 | Soa Palelei | 1031 | Loss | -13 | 955 |
| 2 | 2014-01-25 | Nikita Krylov | 983 | Loss | -16 | 968 |
| 1 | 2013-11-30 | Jared Rosholt | 1000 | Loss | -16 | 984 |