Contestant finishing second (6-2)
I believe the answer is:
runner-up
'contestant finishing second' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for runner-up that I've seen before include "Competitor who finishes second" , "Second-placed contestant" , "Second-place" , "One who is second in a race" , "Second-best" .)