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The 1993 Champion Spark Plug 400 was a Winston Cup (now Nextel Cup) event held at Michigan International Speedway on August 15, 1993. Mark Martin won his second straight race, leading 81 of the 200 laps in route to a 1.28-second victory on Morgan Shepherd. Points leader Dale Earnhardt finished 9th and held a 259-point lead on Dale Jarrett (4th). Stats

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