Race Comment Explainer

Original comment with matches highlighted:

led, mistake 1st, not fluent 4 out, pushed along and headed before 3 out,

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
not fluent	The horse jumped the tenth fence/hurdle poorly or awkwardly
Stayed on	Continued to finish but without closing the gap significantly.
One pace	The horse maintained its speed but could not accelerate or quicken.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
The horse jumped the tenth fence/hurdle poorly or awkwardly
Continued to finish but without closing the gap significantly.
The horse maintained its speed but could not accelerate or quicken.