If you’re a fan of drag-and-drive events, you’ve likely witnessed or heard about certain classes that are limited based on elapsed times due to a variety of factors.

Although Hot Rod Drag Week didn’t start out with the intention of making their Street Race classes into an index-based competition, that’s become the norm.

And the competition to run that 8.500 perfect pass has been heating up, as well as the list of drivers who have accomplished the task, from five events annually held in the US.