Race Comment Explainer

Original comment with matches highlighted:

held up towards rear, en out 3 out, ot fluent 2 out, led before last,

Matched phrases & meanings

Phrase	Meaning
Towards rear	Running near the back of the field.
Ridden out	The jockey encouraged the horse to the finish without the whip, often in an easy win.
Challenged	Attempted to overtake another horse.
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

Running near the back of the field.
The jockey encouraged the horse to the finish without the whip, often in an easy win.
Attempted to overtake another horse.
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.