Bill Jr.’s son, Mike, is also a boat racer. Mike started racing in 1974. For years Mike raced for Team Seebold, but now drives for another sponsor. Mike Seebold has won the Bud Light Grand Prix in St. Louis 6 times. Mike Seebold, previously raced for Bud Light, and was Formula One's driver with the most wins in 2001. In 2005, Mike had the most wins in the ChampBoat racing series. In the fastest of the vee-bottom classes, Superboat V Unlimited, David Knight and Michael Seebold piloted the 44’ Fountain “Shogren Performance Marine” to the 2007 US National Championship, leading every lap of the event. Mike Seebold has over 50 Formula One wins in the US and around the world. The Marco Island, Florida resident continues to hold the mark for most wins in a career with 28 Grand Prix victories.