https://en.wikipedia.org/wiki/World_Sauna_Championships
:-D
The last time it was held, a Russian died and a Finn ended up in hospital with severe burns.
The problem is that staying as long as possible in a sauna can be fatal.
A different Finn won.
One used to read regularly (like a few times a year) about someone who came home drunk and went to (electric) sauna and passed out... and died.
Saunas in new construction now all have timers.
The last time it was held, a Russian died and a Finn ended up in hospital with severe burns.
The problem is that staying as long as possible in a sauna can be fatal.