Race Comment Explainer

Original comment with matches highlighted:

chased leaders out wide, ridden and unable to quicken over 1f out, inside final

Matched phrases & meanings

Phrase	Meaning
ridden and unable to quicken over	This is the crucial negative point the horse lacked the necessary finishing speed.
Chased leaders	Running directly behind the horses in front of the field.
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

This is the crucial negative point the horse lacked the necessary finishing speed.
Running directly behind the horses in front of the field.
The horse lost speed and dropped back through the field.
Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).