Race Comment Explainer

Original comment with matches highlighted:

chased leaders, g before 4 12th, lugged on in before 4 out, in remote 4th from 2 out

Matched phrases & meanings

Phrase	Meaning
Chased leaders	Running directly behind the horses in front of the field.
Pushed along	The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Plugged on	Kept going without showing much pace.
not fluent	The horse jumped the tenth fence/hurdle poorly or awkwardly

Summary

Running directly behind the horses in front of the field.
The jockey started to urge the horse (hand-riding, not necessarily using the whip).
Kept going without showing much pace.
The horse jumped the tenth fence/hurdle poorly or awkwardly