Race Comment Explainer

Original comment with matches highlighted:

tracked leaders, along, rid 4 out and 2 out and fa, d before last 2 out and before last

Matched phrases & meanings

Phrase	Meaning
Tracked leader	Followed closely behind the leaders.
ridden before	The jockey started urging the horse aggressively before the second-last obstacle to try and get it back into contention.
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
Faded	The horse lost speed and dropped back through the field.

Summary

Followed closely behind the leaders.
The jockey started urging the horse aggressively before the second-last obstacle to try and get it back into contention.
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 lost speed and dropped back through the field.