Formula One champion Lewis Hamilton thanked Mercedes for indulging him as he finally signed a new contract, ending months of stalling and growing speculation over his future.
Chase Briscoe held off Grant Enfinger on the dirt at Eldora Speedway in a door-banging overtime shootout in the NASCAR Camping World Truck Series race.
Scott Dixon won the IndyCar race at Toronto for his third title at the event The New Zealand native finished the 85-lap course on the streets surrounding Exhibition Place first, with Simon Pagenaud of France finishing second.
Martin Truex Jr. has won the NASCAR Cup Series race at Kentucky Speedway, passing Brad Keselowski and then Kurt Busch on the way to repeating as champion.
The former chairman of Toronto's IndyCar race says the event has "somewhat lost its charm" in the years since he helped secure funding to revive it in 2009.
