Conversation so far:
What happened at the 1984 Olympic event with Mary Decker?
To put pressure on Zola Budd, Mary Decker remained close by in a crowded space. Decker stood on Budd, then collided with Budd and fell spectacularly to the curb.

Question: What race was she running in particular?
Self-contained rewrite: What race was Mary Decker running in particular when she collided with Budd?