Race Comment Explainer

Original comment with matches highlighted:

in rear, pushed along home turn before 3 out,

Matched phrases & meanings

Phrase	Meaning
pushed along home turn	The jockey started urging the horse for an effort as they entered the final straight.
tailed off	A definitive statement that the horse was finished and effectively out of the race
Rear	Running near the back of the field.

Summary

The jockey started urging the horse for an effort as they entered the final straight.
A definitive statement that the horse was finished and effectively out of the race
Running near the back of the field.