Here's how to watch the 2026 MARS Illinois Valley Showdown at LaSalle Speedway broadcast on FloRacing. The 2026 MARS Illinois Valley Showdown at LaSalle Speedway broadcast starts on Aug 14, 2026 and runs until Aug 15, 2026. Stream or cast from your desktop, mobile or TV. Now available on Roku, Fire TV, Chromecast and Apple TV. Don’t forget to download the FloSports app on iOS or Android! If you can’t watch live, catch up with the replays! Video footage from the event will be archived and stored in a video library for FloRacing subscribers to watch for the duration of their subscription.