Comment by wccrawford

https://en.wikipedia.org/wiki/Superfecta

Sounds like someone made up the name to just sound better than trifecta. It's marketing speak.

Also, as the link says, it has been used to mean more than four. And other languages use their own equivalent of "quadfecta" instead.

Plus, I knew exactly what "quadfecta" meant, but would have no idea about "superfecta".