Pass-the-baton events (6)
I believe the answer is:
relays
'pass-the-baton events' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for relays that I've seen before include "Rebroadcasts" , "teams of relief workers" , "Receives and passes on" , "Foot races in which batons are passed" , "Broadcasts" .)