Race Comment Explainer

Original comment with matches highlighted:

chased leaders, went 3rd at 12th, tayed on, no before 4 out, , before last

Matched phrases & meanings

Phrase	Meaning
Chased leaders	Running directly behind the horses in front of the field.
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.
No extra	Did not improve or accelerate when asked.

Summary

Running directly behind the horses in front of the field.
The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Continued to finish but without closing the gap significantly.
Did not improve or accelerate when asked.