OKTAGON Lightweight championship
Champions: 4 · interim: 1 · since 15 February 2020
No. Champion Won Defences Days How it ended
6 
Mateusz Legierski def. Attila Korkmaz Oktagon 80 22 NOV 2025 · Decision Round 5 1 defences 356days Champion
Mateusz Legierski def. Attila Korkmaz Oktagon 80 22 NOV 2025 · Decision Round 5 1 defences 356days Champion 5 
Losene Keita def. Ronald Paradeiser OKTAGON 65 29 DEC 2024 · TKO (punches) Round 5 0 defences 229days Vacated 15 AUG 2025
Losene Keita def. Ronald Paradeiser OKTAGON 65 29 DEC 2024 · TKO (punches) Round 5 0 defences 229days Vacated 15 AUG 2025 4 
Ronald Paradeiser def. Ivan Buchinger OKTAGON 50 9 DEC 2023 · TKO (punches) Round 3 0 defences 386days Lost to Losene Keita 29 DEC 2024
Ronald Paradeiser def. Ivan Buchinger OKTAGON 50 9 DEC 2023 · TKO (punches) Round 3 0 defences 386days Lost to Losene Keita 29 DEC 2024 3 Losene Keita def. Ivan Buchinger OKTAGON 33 4 JUN 2022 · TKO (punches) Round 1 0 defences 501days Vacated 18 OCT 2023
Losene Keita def. Ivan Buchinger OKTAGON 33 4 JUN 2022 · TKO (punches) Round 1 0 defences 501days Vacated 18 OCT 2023 2 Ivan Buchinger def. Ronald Paradeiser OKTAGON 21 30 JAN 2021 · Decision Round 1 0 defences 490days Lost to Losene Keita 4 JUN 2022
Ivan Buchinger def. Ronald Paradeiser OKTAGON 21 30 JAN 2021 · Decision Round 1 0 defences 490days Lost to Losene Keita 4 JUN 2022 InterimInt. Losene Keita def. Ronald Paradeiser OKTAGON 31 26 FEB 2022 · Decision Round 5 0 defences 98days Won the undisputed title 4 JUN 2022
Losene Keita def. Ronald Paradeiser OKTAGON 31 26 FEB 2022 · Decision Round 5 0 defences 98days Won the undisputed title 4 JUN 2022 1 Mateusz Legierski def. Miroslav Štrbák OKTAGON PRIME 3 15 FEB 2020 · Decision Round 5 0 defences 100days Vacated 25 MAY 2020
Mateusz Legierski def. Miroslav Štrbák OKTAGON PRIME 3 15 FEB 2020 · Decision Round 5 0 defences 100days Vacated 25 MAY 2020