Race Comment Explainer

Original comment with matches highlighted:

dwelt, raced keenly in rear, pushed along 2f out, a danger final , never a danger

Matched phrases & meanings

Phrase	Meaning
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Stayed on	Continued to finish but without closing the gap significantly.
Furlong	Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).
Rear	Running near the back of the field.
Keen	The horse was fighting the jockey, wasting energy early.

Summary

The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Continued to finish but without closing the gap significantly.
Unit of distance; one furlong is 1/8 of a mile (approx. 200 meters).
Running near the back of the field.
The horse was fighting the jockey, wasting energy early.