On Saturday, October 4th, 2025,, K-1 WORLD GP 2025 -90kg World’s Strongest Tournament South American Qualifier was held in Brasilia, Brazil, in collaboration with WGP Kickboxing, one of South America’s leading combat sports promotions. The event was the first K-1 tournament in Brazil since June of this year. The tournament was a one-day tournament with eight participants, and the winner was granted the right to compete in the K-1 WORLD GP 2026 -90kg World’s Strongest Tournament in Tokyo on Sunday, February 8th, 2026. See below for the results and details of each match.

QF 1
Matheus Nogueira defeated Josias Nunez by UD

QF 2
Modestino Rodrigues defeated Ivan Galaz by UD

QF 3
Marco Black Diamond defeated Yan Problema by UD

QF 4
João Pedro Simão defeated Hiago Souza by UD

Reserve Fight
Cleyton Nunes defeated Alessandro Avatar by KO (R3 – 1:06)

SF 1
Modestino Rodrigues defeated Matheus Nogueira by SD

SF 2
Marco Black Diamond defeated João Pedro Simão by KO (R2 – 0:52)

Super Fight
Matias Garcia defeated Marcio de Jesus by KO (R1 – 1:50)

Super Fight
Suellen Bitencourt defeated Maria Ferreira by UD

WAKO Pan-American Interim Title Bout
Andre Martins defeated Anthony Schleicher by KO (R2 – 3:00)

Final
Marco Black Diamond defeated Modestino Rodrigues by KO (R1 – 2:17)