Race Comment Explainer

Original comment with matches highlighted:

tracked leaders, went 2nd before 6th until after next, chased leaders,

Matched phrases & meanings

Phrase	Meaning
Chased leaders	Running directly behind the horses in front of the field.
Tracked leader	Followed closely behind the leaders.
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.
Weakened	The horse lost speed and dropped back through the field.

Summary

Running directly behind the horses in front of the field.
Followed closely behind the leaders.
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 lost speed and dropped back through the field.