The phrase "a contest for which" is correct and usable in written English.
It can be used when referring to a specific contest or competition that is being discussed or described.
Example: "The annual science fair is a contest for which students from various schools compete to showcase their innovative projects."
Alternatives: "a competition for which" or "a challenge for which".
This latter is a contest for which many in the Tory party are already actively preparing.
Of course, no one wants to set up a contest for which is worse, smoking or obesity.
Mr. Giuliani, for his part, has done everyone a service by making a timely exit from a contest for which he no longer had an appetite.
Tradition dictates that the Speaker is safe from challenges from other parties at a general election, but when the number of MPs is reduced and boundaries subsequently redrawn before the next election, changes to his Buckingham seat may necessitate a contest – for which his enemies intend to put up a rival candidate.
Given the album was recorded in a garage, the band held a contest for which some shows of the promotional tour would be performed in eight fans' garages.
InfiniteGraph is also announcing a contest for developers, which will offer up to $12,000 in prizes, in addition to helping developers promote their apps.
We are holding a special contest for which the winner won't have to wait in line to get in.
It all started during my junior year when my teacher signed me up for a writing contest for which I won second place.
To promote general knowledge of "Dagen-H" (H-Day), the Swedish government sponsored lively festivals, advertising campaigns featuring scantily clad women, and a song contest for which the winner was "Håll dig till höger, Svensson" or "Keep to the right, Svensson".
These two have both won the Crossfit Games, an annual contest for which the first prize is $275,000, a fortune in sponsorships and the title "fittest woman on the planet".
For the second year in a row it will sponsor a party and costume contest, for which East 92nd Street between Madison and Park Avenues, a decorated block, will be closed.
