Race Comment Explainer

Original comment with matches highlighted:

held up rid, pushed along 4f out, strongly ridden 3f out, at

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Plugged on	Kept going without showing much pace.
One pace	The horse maintained its speed but could not accelerate or quicken.
Held up	Intentionally raced patiently at the back to save energy.
Rear	Running near the back of the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Kept going without showing much pace.
The horse maintained its speed but could not accelerate or quicken.
Intentionally raced patiently at the back to save energy.
Running near the back of the field.