Race Comment Explainer

Original comment with matches highlighted:

handy, pushed along over 2f out, no impression and

Matched phrases & meanings

Phrase	Meaning
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.
Kept on	The horse maintained its speed well to the finish.
Handy	Running very near the leaders (usually 2nd, 3rd, or 4th).

Summary

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 its speed well to the finish.
Running very near the leaders (usually 2nd, 3rd, or 4th).