Tsuyoshi Kohsaka, a seasoned mixed martial artist, competed with a record of 27 wins, 19 losses, and 2 draws. He held a weight class of 225 lbs. during his career. Standing at 5' 11', Kohsaka demonstrated an orthodox stance in the octagon. In terms of performance statistics, Kohsaka averaged 1.88 significant strikes per minute and maintained a striking accuracy of 38%. He absorbed an average of 4.41 strikes per minute, with a strike defense rate of 54%. The athlete attempted an average of 0.4 submissions per 15 minutes and managed to execute takedowns at a rate of 1.32 per 15 minutes, with a takedown accuracy of 20%. Notable victories in Kohsaka's career include defeating Pete Williams, who held an ELO rating of 1026. One of his most significant wins came on October 16, 1998, when he won against Williams via unanimous decision. However, his last fight was on May 10, 2002, where he suffered a loss against Ricco Rodriguez via KO/TKO punches. Prior to that, Kohsaka faced mixed results, with a win against Tim Lajcik via KO/TKO and losses against Bas Rutten and Pedro Rizzo via KO/TKO punches.