15-year-old cleans up at Slinger Speedway

Posted at 1:52 PM, Aug 25, 2017
and last updated 2017-08-25 14:52:11-04

Meet Grant Griesbach.

At 15 years old, he's the youngest Super Late Model Feature Winner in Slinger history.

He accomplished that feat the same season as the oldest winner, 69-year-old Conrad Morgan.

Watch above for more.