7/5/2021
Slinger Super Speedway
Zach Riddle tops the Prelude to the Nationals at Slinger
![Zach Riddle tops the Prelude to the Nationals at Slinger](https://dy5vgx5yyjho5.cloudfront.net/images/v2/s1136x640-U5j9aNJ2m7vx648271.jpg)
Slinger, Wis., July 4—The Prelude to the Nationals race program on Independence Day at the Singer Speedway Sunday night kicked off a busy stretch of racing action leading up to the Supply Zone Slinge...