Race Comment Explainer

Original comment with matches highlighted:

chased leaders, ace over 1f 2f out, lost place over 1f out, well beaten 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).
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).
Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).