Race Comment Explainer

Original comment with matches highlighted:

midfield, ridden before 2 out, n chase approaching last, soon chased leaders, nearest finish

Matched phrases & meanings

Phrase	Meaning
Chased leaders	Running directly behind the horses in front of the field.
ridden before	The jockey started urging the horse aggressively before the second-last obstacle to try and get it back into contention.
Headway	The horse was moving up through the field.

Summary

Running directly behind the horses in front of the field.
The jockey started urging the horse aggressively before the second-last obstacle to try and get it back into contention.
The horse was moving up through the field.