Race Comment Explainer

Original comment with matches highlighted:

made all, pushed along before 2 out, , ridden before last, won un

Matched phrases & meanings

Phrase	Meaning
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).
Challenged	Attempted to overtake another horse.
Made all	Led the race from start to finish.
Kept on	The horse maintained its speed well to the finish.

Summary

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).
Attempted to overtake another horse.
Led the race from start to finish.
The horse maintained its speed well to the finish.