So I'm watching the Flash vs Girder, and then I thought

How long would it take to run 5.3 miles while going 837 mph?
I found out.
837/60/60=.2325 miles per second
.2325 x 22.79569892475 = 5.3
For some reason, I never thought to just do 5.3/.2325, I literally typed manually just typed in numbers until I got closer and closer and finally got to 5.3
But yeah
It takes 22.79569892475 seconds to run 5.3 miles while going Mach 1.1, which is actually about how long it took for Barry to get to Girder, from the moment he runs to the moment he punches him, it's 27 seconds. But there's also slowmotion shots, so how long it actually took him to get there is probably much closer to 22.
I wonder if they intentionally filmed that scene to take that long.