Race Comment Explainer

Original comment with matches highlighted:

chased leaders, out, plugge and 2f out, final

Matched phrases & meanings

Phrase	Meaning
Chased leaders	Running directly behind the horses in front of the field.
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Plugged on	Kept going without showing much pace.
Outpaced	Could not keep up with faster horses mid-race.
Furlong	Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).

Summary

Running directly behind the horses in front of the field.
The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Kept going without showing much pace.
Could not keep up with faster horses mid-race.
Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).