Bolt runs as fast as he needs to, so if he knows it's 40 yards and not 100m, he'd still beat Ross.
Look, they just showed Christian Coleman who runs for Tennessee running a 4.12 last week, and he might not be the fastest American sprinter.
The fastest American record time is Tyson Gay with a 9.68 100m but he still lost because Bolt set a world record with 9.59 in the same race.
Ross should race the guy who ran the 4.12 before he tries to challenge Bolt.