Race Comment Explainer

Original comment with matches highlighted:

held up in mid-division, some ly out wide 4f out, pushed along over 3f out, quickly

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Mid-division	Running in the middle of the pack.
Weakened	The horse lost speed and dropped back through the field.
Held up	Intentionally raced patiently at the back to save energy.
Headway	The horse was moving up through the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Running in the middle of the pack.
The horse lost speed and dropped back through the field.
Intentionally raced patiently at the back to save energy.
The horse was moving up through the field.