Through rain and a green-white-checker finish, Brendan Gaughan held on to win his first NASCAR Nationwide race in 98 starts.
The six-time series champion won Sunday for the first time in 25 Cup starts at Michigan International Speedway.
Ryan Hunter-Reay has become the first American to win the Indianapolis 500 since 2006, making a dramatic pass of Helio Castroneves on the final lap to win Sunday's race in the second-closest finish in history.
Helio Castroneves is poised to win a record-tying fourth Indianapolis 500 this year, but he will have plenty of competition from throughout the 33 car field.
Denny Hamlin, winner of three races at Daytona that didn't count, finally has a points-paying victory at a restrictor-plate track.
Ryan Hunter-Reay deftly guided his car around the rain-soaked track, stayed out of trouble and wound up with a much happier ending.
With a last-lap pass of Jeff Gordon in NASCAR's version of overtime, Joey Logano became the seventh different winner in as many races this season, with new rules for the championship Chase putting an increased emphasis on winning.
Lewis Hamilton edged Mercedes teammate Nico Rosberg after an intense race-long duel to take victory by just one second at the Bahrain Grand Prix on Sunday.
Kurt Busch beat out two drivers—Jimmie Johnson and Jeff Gordon—who each have eight Martinsville wins on their resumes.
Will Power picked up right where he left off last season, in Victory Lane, for the fourth time in the last six IndyCar Series races.