I think in GTs that should be quite normal for domestiquesI mean the lesson here is that we can find significance in any data point depending on how we interpret them. If a rider we like has a good performance out of the blue and then falls off early the next day, we can say "Look, he's tired after going all out yesterday, he's not doping". If we don't like him, we can point and say "Oh look, he's bad again, that makes yesterday even weirder, he must have been doping".