Ryo Chonan, a seasoned mixed martial artist, competed with a record of 22 wins, 13 losses, and no draws. He specialized in the welterweight division, standing at 5 feet 9 inches tall with a reach of 70 inches, adopting an orthodox stance. In terms of performance, Chonan demonstrated a significant strikes per minute average of 2.57, striking accurately 43% of the time while absorbing 2.25 strikes per minute. His strike defense was commendable at 60%, and he attempted an average of 0.3 submissions per 15 minutes. Chonan's career highlights include a significant victory over Roan Carneiro, who held an ELO rating of 1008. However, his most recent fights show a mixed record, with losses against Karo Parisyan and TJ Grant, as well as a win against Roan Carneiro in 2008. His last recorded fight was on April 18, 2009.