Race Comment Explainer

Original comment with matches highlighted:

tracked leaders out wide, fore 3 out, and before 3 out, soon after,

Matched phrases & meanings

Phrase	Meaning
Tracked leader	Followed closely behind the leaders.
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
tailed off	A definitive statement that the horse was finished and effectively out of the race
Weakened	The horse lost speed and dropped back through the field.
Outpaced	Could not keep up with faster horses mid-race.

Summary

Followed closely behind the leaders.
The jockey started to urge the horse (hand-riding, not necessarily using the whip).
A definitive statement that the horse was finished and effectively out of the race
The horse lost speed and dropped back through the field.
Could not keep up with faster horses mid-race.