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David Mielke (87) battles Jeep VanWormer during Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)
Bobby Pierce (32) races under Travis Stemler during Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)
Frank Heckenast Jr. (99) races with Brian Shirley during Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)
Frank Heckenast Jr. fends off David Mielke (87) during Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)
Ryan VanderVeen (23) battles Jeep VanWormer during Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)
Rusty Schlenk (1) races Jason Feger during Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)
Brian Shirley takes the checkered flag to win Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)
Brian Shirley celebrates in victory lane after winning Thursday night's DIRTcar Summer Nationals event at I-96 Speedway. (Jim DenHamer photo)