Race Comment Explainer

Original comment with matches highlighted:

towards rear, pushed along and early, no impression 3f out, over 2f out

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Towards rear	Running near the back of the field.
Ran green	Inexperienced or showed signs of immaturity.
Weakened	The horse lost speed and dropped back through the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Running near the back of the field.
Inexperienced or showed signs of immaturity.
The horse lost speed and dropped back through the field.