I did a 600m timetrial today in 1:34. I was wearing road racing flats and it was a 300m track, and it wasnt a full on race but it was almost as hard as I could go, about 95%. What might I be able for the 800m on a 400m track with spikes on, in a race? Would the extra 200m be the real business end of the race and slow me down a lot?
Thank you,