Race Comment Explainer

Original comment with matches highlighted:

held up towards rear, re 2 ou when 3 out, los 6th, ridden before 3 out, lost place before 2 out

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.
Towards rear	Running near the back of the field.
not fluent	The horse jumped the tenth fence/hurdle poorly or awkwardly
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.
Running near the back of the field.
The horse jumped the tenth fence/hurdle poorly or awkwardly
Intentionally raced patiently at the back to save energy.
The horse was moving up through the field.