He was previously a head coach in the Arena Football League (AFL) for the Houston Thunderbears, Grand Rapids Rampage and Cleveland Gladiators.
Thonn attended Wheaton College and was a student and a letterman in football, basketball, and baseball.
Thonn's play helped the Bruisers reach ArenaBowl II, where they lost to the Detroit Drive.
Thonn was hired by the Cleveland Gladiators on December 22, 2009, as their new head coach in time for the franchise to restart in the resurrected Arena Football League.
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