Claim: Jon Kolb was also an occasional strongman competitor in some of the recent World's Strongest Man contests
Evidence: He was also an occasional strongman competitor in some of the early World's Strongest Man contests. 
Kolb competed in the second and third annual World's Strongest Man competitions in 1978 and 1979, placing on a very good 4th rank in both years, while often defeating much heavier and stronger competitors in certain events.