Wyns had a professional boxing career stretching from 1911 to 1926 that had about 115 bouts, of which included 79 wins by KO, 23 losses, and 13 ending in decisions for draws.
[1][2] Eugène Criqui trained with, and fought, Wyns in several International bouts on a tour of Australia via the Suez Canal.
[3] In late 1920, he was involved in a controversial bout in which a referee assisted a boxer, who he'd knocked out, back into the ring.
[4] He was defeated by future hall of famer Sid Godfrey, in a fight on Boxing Day, 26 December 26 1920.
He attempted to re-gain his title, but was defeated by his former sparring partner Criqui on 9 September of that same year.