100 meter difference?

Question

Today, I ran 100 meters in about 12.3, maybe a little faster on a dirt track with spikes. How much would I take off that time if it were a rubber track like they use in the olympics? My dad thinks it would be maybe half a second which would put me at 11.8 but I'm not sure it would be that much. I'm thinking it would drop to at least 12.25 though.

Answer 1

Rubber track wouldve probably got u 12 even or 12.1, it would have been a significant difference because you get that extra bounce and traction.