Zimmerman appeared unharmed as he walked out of the medical station at the racecourse and spoke to the crowd that had gathered.
The event is now in its 98th year and features multiple races to crown a champion of the oldest active trophy in motor sports.
When presenting sponsor Chrysler bowed out, some questioned if there would be a 103rd running of the oldest active trophy in motorsports, the APBA Gold Cup, but leaders of the Detroit Yacht Club are ensuring the tradition continues.
Over the three day event, Detroit APBA Gold Cup races will thrill crowds watching the hydroplanes reach speeds up to 200 mph on the Detroit River.
This Friday more than a dozen boats will be out on the Detroit River warming-up for this weekend’s APBA Gold Cup race.
Ford Field is rolling out a natural grass playing surface the first time in the venue’s history for the 2011 CONCACAF Gold Cup.