Contests in which no one goes the distance (5,5)

I believe the answer is:

relay races

I'm a little stuck... Click here to teach me more about this clue!

'contests' is the definition.
(relay race is a kind of contest)

'no one goes the distance' is the wordplay.
I cannot really understand how this works, but
'one' could be 'ace' (ace has a value of one in some card games) and 'ace' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

'in which' is the link.

Can you help me to learn more?

I've seen this clue in The Globe and Mail.

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