Racing
chased leaders to halfway
always outpaced
tracked leaders, pushed along from halfway, kept on one pace
prominent, one pace from 2f out
soon driven along to chase leaders, outpaced well over 1f out
outpaced until moderate headway from over 1f out
with leader, led over 1f out, ran on well
led, headed over 1f out, kept on same pace
slowly into stride, soon recovered to chase leaders until weakened halfway