Race Comment Explainer

Original comment with matches highlighted:

rear mid-division, pushed along 2f out and improved, ridden in fourth over 1f out,

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.
No extra	Did not improve or accelerate when asked.
Rear	Running near the back of the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Running in the middle of the pack.
Did not improve or accelerate when asked.
Running near the back of the field.