It is a 'gauge' of sorts on how fast your dog is running.

Common misconception is that it's based off each specific course, on each weekend, which isn't true. The DRI numbers are in the exhibitors handbook, and are only updated when needed. They were last updated in 2017 I believe, and there has been no need to update them again since the dogs are all still running in that same range.

Easiest way to think about it is you have a goal of let's say 5.45 Yards Per Second (YPS) in Elite Regular, if you're jumping 20 inches.

If you hit that goal exactly, then you would receive a 100 DRI.

If you fall short by a small amount, let's say 5.40 YPS you would get a 99 DRI.

And anything above that goal gets you a higher number, so 5.70 YPS would be a 104 DRI.

It is capped at 111, so you can't ever get a DRI higher then 111