Thierry van den Bosch, of France, leads Doug Henry, Jurgen Kunzel and Jeff Ward on the final lap of the AMA Supermoto Championship race at the Briggs & Stratton Motorplex in Elkhart Lake, Wis. Henry made a dramatic pass to edge van den Bosch in the second race. The Frenchman van den Bosch won the first race. (Larry Lawrence photo)

Thierry van den Bosch and Doug Henry each won a round of the AMA Supermoto Championship during the 2005 series’ opening weekend at the Briggs & Stratton Motorplex at Road America in Elkhart Lake, Wisconsin.

The then two-time Supermoto World Champion van den Bosch, of France, who was 30 at the time, showed off his rain riding skills in race one by pulling away to a convincing 6.6-second victory over local favorite Ben Carlson. Germany’s Jurgen Kunzel was third, giving KTM a sweep of the podium finishers.

Henry, of Torrington, Conn., won the second race with a dramatic last lap pass on van den Bosch on a drying track.

Van den Bosch, arguably the greatest Supermoto racer of all time, became the first rider to lead both the World and AMA Supermoto Championships simultaneously.