Race Comment Explainer

Original comment with matches highlighted:

chased leaders, before 3 1st, ost place fr before 3 out, lost place 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).
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).
The horse jumped the tenth fence/hurdle poorly or awkwardly