KNOCK OUT-EX vol.4 ～BLACK FIGHT～Sunday, August 22nd, 2021 at 10:00 AM UTCPromotionKNOCK OUTVenueShinjuku FACELocationShinjuku, Tokyo, JapanNumber of bouts5
Main CardPrediction ModeMain CardBout3 roundsRKWRyusei Kumagai3-0-0Bout3 roundsVSKO/TKO, Punches | R1 · 2:00RI
