Race Comment Explainer

Original comment with matches highlighted:

tracked leaders, went 2nd at 4th, no impression 2 out and e flat, flat

Matched phrases & meanings

Phrase	Meaning
Tracked leader	Followed closely behind the leaders.
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
One pace	The horse maintained its speed but could not accelerate or quicken.
Ran on	The horse maintained or increased its speed in the final stages.

Summary

Followed closely behind the leaders.
The jockey started to urge the horse (hand-riding, not necessarily using the whip).
The horse maintained its speed but could not accelerate or quicken.
The horse maintained or increased its speed in the final stages.