Race Comment Explainer

Original comment with matches highlighted:

held up in last pair, some 5th, we before 2th, ridden before 15th, went remote 3rd run-in

Matched phrases & meanings

Phrase	Meaning
ridden before	The jockey started urging the horse aggressively before the second-last obstacle to try and get it back into contention.
Held up	Intentionally raced patiently at the back to save energy.
Headway	The horse was moving up through the field.

Summary

The jockey started urging the horse aggressively before the second-last obstacle to try and get it back into contention.
Intentionally raced patiently at the back to save energy.
The horse was moving up through the field.