Tanner Boser has 10 losses against 10 opponents on his MMA record. For a list of Boser's best fights, refer to "Best fights of Tanner Boser".
On April 15, 2023 Tanner Boser faced off against Ion Cuțelaba in a light-heavyweight bout at age 31. He was coming in with a record of 20-10-1 (13), and Cuțelaba was 29 years old and with a record of 16-9-1 (14). Boser lost the fight via 1st-round TKO.
On September 17, 2022 Tanner Boser faced off against Rodrigo Nascimento in a heavyweight bout at age 31. He was coming in with a record of 20-9-1 (13), and Nascimento was 29 years old and with a record of 8-1 (8). Boser lost the fight via 3-round split decision.
On June 5, 2021 Tanner Boser faced off against Ilir Latifi in a heavyweight bout at age 29. He was coming in with a record of 19-8-1 (12), and Latifi was 37 years old and with a record of 14-8 (9). Boser lost the fight via 3-round split decision.
On November 7, 2020 Tanner Boser faced off against Andrei Arlovski in a heavyweight bout at age 29. He was coming in with a record of 19-7-1 (12), and Arlovski was 41 years old and with a record of 29-19 (20). Boser lost the fight via 3-round unanimous decision.
On December 21, 2019 Tanner Boser faced off against Ciryl Gane in a heavyweight bout at age 28. He was coming in with a record of 17-6-1 (10), and Gane was 29 years old and with a record of 5-0 (5). Boser lost the fight via 3-round unanimous decision.
On November 10, 2018 Tanner Boser faced off against Salimgerey Rasulov in a heavyweight bout at age 27. He was coming in with a record of 15-5 (9). Boser lost the fight via 3-round unanimous decision.
On May 20, 2017 Tanner Boser faced off against Denis Smoldarev in a heavyweight bout at age 25. He was coming in with a record of 12-4 (8). Boser lost the fight via 3-round unanimous decision.
On March 11, 2017 Tanner Boser faced off against Mukhamad Vakhaev in a heavyweight bout at age 25. He was coming in with a record of 12-3 (8). Boser lost the fight via 3-round split decision.
On April 9, 2016 Tanner Boser faced off against Kazbek Saidaliev in a heavyweight bout at age 24. He was coming in with a record of 9-2 (8). Boser lost the fight via 3-round unanimous decision.
On March 27, 2015 Tanner Boser faced off against Tim Hague in a heavyweight bout at age 23. He was coming in with a record of 6-1 (5), and Hague was 31 years old and with a record of 19-9 (17). Boser lost the fight via 1st-round KO.