Race Comment Explainer

Original comment with matches highlighted:

in rear, mistake 18th and pushed along, rom last 3 out, late from last

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Outpaced	Could not keep up with faster horses mid-race.
Headway	The horse was moving up through the field.
Rear	Running near the back of the field.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Could not keep up with faster horses mid-race.
The horse was moving up through the field.
Running near the back of the field.