Reminds me of the story of the Swedish champion who blasted a hole in his map case when he slipped and hit it on a rock during the epic US Champs race at Great Falls, MD in 1988. It was pouring rain and as the map took on water it deteriorated until a critical section became useless. He continued on, navigating from memory, but eventually stopped someone who was on another course
, begged a look at her map, and was then able to complete his course! I'm thinking this was Jörgen Mårtensson
, but someone will correct me if have that wrong. This map was so complex that in addition to the normal 1:15000 there was an enlargement of one area added at 1:7500.
Memory a bit fuzzy but I think he didn't win that particular day. But the meet was part of the 1988 USA O-Fest
and he was still comfortably in 1st place M21A overall for the 6-day results.
Incidentally the 1988 USA O-Fest just happened to coincide with the release of the Morris worm
on the internet. A fact that I only learned upon returning to work after the conclusion of the O-Fest, having somehow forgotten to bring a smart-phone with me.