Race Comment Explainer

Original comment with matches highlighted:

prominent, not fluent 6th, led next, driven flat,

Matched phrases & meanings

Phrase	Meaning
not fluent	The horse jumped the tenth fence/hurdle poorly or awkwardly
held on	The horse managed to maintain its lead and win the race by a narrow margin.
gamely	The ultimate descriptor for a horse that wins bravely and resolutely after a tough battle.

Summary

The horse jumped the tenth fence/hurdle poorly or awkwardly
The horse managed to maintain its lead and win the race by a narrow margin.
The ultimate descriptor for a horse that wins bravely and resolutely after a tough battle.