Race Comment Explainer

Original comment with matches highlighted:

went to post early, in rear, headway home turn, ridden 3 out,

Matched phrases & meanings

Phrase	Meaning
home turn	This is the final bend or corner of the track, just before the horses enter the final straight run to the finish line.
Headway	The horse was moving up through the field.
Faded	The horse lost speed and dropped back through the field.
Rear	Running near the back of the field.

Summary

This is the final bend or corner of the track, just before the horses enter the final straight run to the finish line.
The horse was moving up through the field.
The horse lost speed and dropped back through the field.
Running near the back of the field.