Soap Box Derby - Scandals

Scandals

In 1973, 14 year old Jimmy Gronen of Boulder, CO was stripped of his title two days after winning the national race. Suspicions were running high even before the finals, and Gronen was actually booed by many spectators.

The unusual dimensions of Gronen's margins of victory and heat times tipped off derby officials to illegal circumstances surrounding Gronen's racer. Subsequent X-ray examination of his car revealed an electromagnet in the nose. When activated at the starting line, the electromagnet would pull the car forward by attracting it to the steel paddle used to start the race. Gronen would activate the electromagnet by leaning his helmet against the backrest of his seat, which activated its power source. This became very evident as Gronen's heat times progressively slowed down as the race wore on, because the electromagnet lost strength each time it was activated. Usually, heat times get faster each time a racer completes a heat. Videotape of the race also showed a suspiciously sudden lead for Gronen just a few feet after each heat began. The margin of victory for a race heat will normally be no more than 1 to 3 feet. Gronen's early heat victories were in the 20 to 30 feet range. (Aluminum insulator plates were added to the starting ramps in 1974 to render an electromagnetic system useless.)

Midway through the 1973 race, Derby officials also replaced Gronen's wheels after chemicals were found to be applied to the wheels' rubber. The chemicals caused the tire rubber to swell, which reduced the rolling resistance of the tire.

In the final heat, Gronen finished narrowly ahead of Bret Yarborough. Within two days, Yarborough was declared the 1973 champion.

Gronen's uncle and legal guardian at the time, wealthy engineer Robert Lange, was indicted for contributing to the delinquency of a minor and paid a $2,000 settlement.

Lange's son, Bob Lange Jr. (and Jimmy Gronen's cousin) had won the previous 1972 Derby using a car considered to be indistinguishable from the vehicle used by Gronen. Boulder, Colorado was also banned from any future participation in the All-American Soap Box Derby.