Race Comment Explainer

Original comment with matches highlighted:

took keen hold, held up in aile, bad mistake 3rd, ridden and tailed off before 2 out

Matched phrases & meanings

Phrase	Meaning
tailed off	A definitive statement that the horse was finished and effectively out of the race
Held up	Intentionally raced patiently at the back to save energy.
Rear	Running near the back of the field.
Keen	The horse was fighting the jockey, wasting energy early.

Summary

A definitive statement that the horse was finished and effectively out of the race
Intentionally raced patiently at the back to save energy.
Running near the back of the field.
The horse was fighting the jockey, wasting energy early.