We've had a few emails asking, so I'm answering. Fans, drivers and promoters around the country have been wondering what the green dots were on the rear tires of competitors for June 27's Firecracker 100 at Lernerville Speedway.

The markings were part of an effort by the World of Outlaws Late Model Series to police any chemically-altered tires at the $30,000-to-win Firecracker 100. Green meant good — that tires weren't softened or treated chemically — and as it would happen, all 28 starters MORE