Kosei Yamada (山田洸誓; born 4 November 1992) is a retired Japanese kickboxer, who spent his entire professional career competing in the super lightweight division of RISE. He held the RISE Super Lightweight Championship from 2019 until 2022. Between July and December 2021, he was ranked as a top ten featherweight kickboxer by Combat Press. He re-entered the rankings at #10 in April 2022, and remained ranked until July 2022.
Source: “Kosei Yamada”, English Wikipedia (CC BY-SA 4.0), excerpt
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