Toughest 400-metre race

Even if you're not a professional athlete, completing a 400-metre race doesn't sound like that big of a challenge, right?
But what if that relatively short distance had to be covered up the steepest ski jumping hill in Europe? That certainly complicates things a bit, doesn't it?
The Red Bull 400 uphill race is the brainchild of former world-class sprinter Andreas Berger.