I think it's close to impossible to predict at the moment. Arensman does build into races but he was quite bad on Friday, and today was quite a unique stage. He's also prone to between one and three bad days a Giro.
Hindley has the experience but today was not great. Pellizzari was good in the first week, then bad this weekend – tired or ill? It is odd to lose this much form this quickly without there being an external reason.
Eulalio has the pink jersey boost, but how will he be once he loses it? Gee is growing in form and is a diesel so will be consistent in the mountains stages, but I also don't see him outclimbing many of the others if they have a good day and he has a time disadvantage to make up