Recruited for Athletics at Stanford but never did Athletics as an extra-curricular?

I ran on grass on the oval - does that slow me down? Also, I think the time is accurate or less than 11.2s since I run faster on hard floor and I have a slow reaction time to when the bullet fires. Literally it will fire and in one second I’ll start running and I’m behind but then I get in front and I’m way in the lead.