Tune-In Alert! 2020 Progressive American Flat Track Springfield Mile I & II Back-to-Back on NBCSN TOMORROW!

DAYTONA BEACH, Fla. (September 18, 2020) - Don't miss Progressive American Flat Track's return to the World's Fastest Mile with back-to-back telecasts of the Springfield Mile I & Springfield Mile II presented by Memphis Shades beginning Saturday, September 19 at 12:30 p.m. ET (9:30 a.m. PT) on NBCSN.