Thanks for ruining today's game for everyone.
Lexico (Oxford):
https://www.lexico.com/definition/hapax_legomenon
A term of which only one instance of use is recorded.
‘In philology a hapax legomenon is almost always a word and is a problem because a single usage doesn't generally give us enough information to figure out what it means.’
I thought this - with the other answer - was rather clever as a one off for today. People are too obsessed with stats and losing.