Race Comment Explainer

Original comment with matches highlighted:

led, headed after 3f, ridden to lead over 2f out, headed over 1f out, final

Matched phrases & meanings

Phrase	Meaning
ridden to lead over	The jockey started urging the horse, and the horse responded with a surge to take the lead
Weakened	The horse lost speed and dropped back through the field.
Furlong	Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).

Summary

The jockey started urging the horse, and the horse responded with a surge to take the lead
The horse lost speed and dropped back through the field.
Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).