Race Comment Explainer

Original comment with matches highlighted:

not always fluent in rear, pushed along 4 out, ed last 3 out, went 2nd out, led last,

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Stayed on	Continued to finish but without closing the gap significantly.
Headway	The horse was moving up through the field.
Rear	Running near the back of the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Continued to finish but without closing the gap significantly.
The horse was moving up through the field.
Running near the back of the field.