Race Comment Explainer

Original comment with matches highlighted:

led, faced challenge 2 out and pushed along, n on one p last and headed,

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
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

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
The horse jumped the tenth fence/hurdle poorly or awkwardly
The horse maintained its speed but could not accelerate or quicken.
The horse maintained or increased its speed in the final stages.