<<< Occasionally some HS meets were run there and due to time contraints the
curb wasn't put in place. I can't recall if the times seemed unreasonably
fast on those occasions. >>>
The difference in circumference between the track with the curb "removed"
and a track constructed WITH NO CURB EVER, would be ...
2*(pi)*(Change in)Radius = 2 * 3.14159 * 10cm = 62.93 cm
.15707% less than the "larger circumference" of a curbless track.
You would not notice enough of a difference that it would be obvious.
It would be worth about .08 seconds in a 50 second 400m race (all else being
equal).
