Depending on how they define "winner at programming contests", this might narrow down the population to just a handful of "sport programmers". The same handful of guys win all the contests.
The statement might as well be "tourist has bad job performance". (https://en.wikipedia.org/wiki/Gennady_Korotkevich) And that isn't surprising given how much he has to train everyday to stay on top. He even turned down offers from Google/Facebook just to continue qualifying for the big annual competitions like Google Code Jam and Facebook Hacker Cup.