Race Comment Explainer

Original comment with matches highlighted:

towards rear, not clear run 2f out, soon ridden and never n, rer inside last,

Matched phrases & meanings

Phrase	Meaning
Towards rear	Running near the back of the field.
Never nearer	The horse's closest point to the leader was the position it finished in (ran on late).
Kept on	The horse maintained its speed well to the finish.
Headway	The horse was moving up through the field.

Summary

Running near the back of the field.
The horse's closest point to the leader was the position it finished in (ran on late).
The horse maintained its speed well to the finish.
The horse was moving up through the field.