Kleber Koike Erbst has eight losses against eight opponents on his MMA record. For a list of Erbst's best fights, refer to "Best fights of Kleber Koike Erbst".
On May 4, 2025 Kleber Koike Erbst met Razhabali Shaydullaev in a featherweight (Rizin Championship) title defense fight. Erbst was 35 years old and with a record of 34-8-1 (28). Erbst lost the fight via 1st-round KO and lost the title.
On September 24, 2023 Kleber Koike Erbst faced off against Masanori Kanehara in a featherweight bout at age 33. He was coming in with a record of 31-7-1 (27), and Kanehara was 40 years old and with a record of 28-12-5 (21). Erbst lost the fight via 3-round unanimous decision.
On December 31, 2022 Kleber Koike Erbst faced off against Patrício Pitbull in a featherweight bout at age 33. He was coming in with a record of 31-6-1 (27), and Pitbull was 35 years old and with a record of 34-5 (22). Erbst lost the fight via 3-round unanimous decision.
On December 1, 2018 Kleber Koike Erbst fought Mateusz Gamrot in a featherweight title fight for the KSW Championship title. Erbst was 29 years old and with a record of 24-5-1 (22), and Gamrot was 27 years old and with a record of 14-0 (8). Erbst lost the fight via 5-round unanimous decision.
On November 28, 2015 Kleber Koike Erbst fought Artur Sowiński in a featherweight title fight for Sowiński's KSW Championship title. Erbst was 26 years old and with a record of 18-4-1 (17). Erbst lost the fight via 3-round unanimous decision.
On October 10, 2009 Kleber Koike Erbst faced off against Toshiaki Kitada in a featherweight bout at age 19. He was coming in with a record of 4-3 (4). Erbst lost the fight via 2nd-round submission.
On August 30, 2009 Kleber Koike Erbst faced off against Yoshiro Maeda in a featherweight bout at age 19. He was coming in with a record of 3-2 (3), and Maeda was 27 years old and with a record of 24-7-2 (15). Erbst lost the fight via 1-round disqualification.
On June 30, 2009 Kleber Koike Erbst faced off against Toshikazu Iseno in a welterweight bout at age 19. He was coming in with a record of 3-1 (3). Erbst lost the fight via 2-round unanimous decision.
