Race Comment Explainer

Original comment with matches highlighted:

rear of mid division, 7th halfway, pushed along after 3 out, soon and

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
One pace	The horse maintained its speed but could not accelerate or quicken.
No extra	Did not improve or accelerate when asked.
Kept on	The horse maintained its speed well to the finish.
halfway	The horse was patiently ridden up to the middle point
Rear	Running near the back of the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
The horse maintained its speed but could not accelerate or quicken.
Did not improve or accelerate when asked.
The horse maintained its speed well to the finish.
The horse was patiently ridden up to the middle point
Running near the back of the field.