He was traded to the Toronto Argonauts for the 1987 season, where he split the Argos starting job with fellow rookie John Congemi.
Backup Danny Barrett rushed for the go ahead touchdown with 2:36 left in the game, but the Argos missed the two-point conversion.
Congemi won the starting job in the 1989 season, but was injured in mid-September and Renfroe was once again the Argos' starter.
He was re-signed eight days later when Hugh Millen was granted his request for a release after falling all the way to the third spot on the depth chart.
On September 26 he was signed by the Minnesota Vikings after starting quarterback Wade Wilson was sidelined after thumb surgery.
After a failed tryout with the Kansas City Chiefs, Renfroe signed with the Detroit Drive of the Arena Football League.