Race Comment Explainer

Original comment with matches highlighted:

chased leaders out wide, er 3f out, s and over 3f out, soon ,

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).
tailed off	A definitive statement that the horse was finished and effectively out of the race
lost touch	The horse was struggling severely and the jockey was losing hope
Outpaced	Could not keep up with faster horses mid-race.

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).
A definitive statement that the horse was finished and effectively out of the race
The horse was struggling severely and the jockey was losing hope
Could not keep up with faster horses mid-race.