If Djokovic and Delpo are on the other side of the draw he has very good chance to go far. In R3 it's either Dolgo, Tomic, Seppi or Raonic. Dolgo is the one i fear the most as he takes Marin's second serve early and fires away the other 3 don't have much chance in best of 5
Marin thrives on confidence and so far he had perfect grass season winning even on exhibition.
You think he would beat Federer, Nadal or Murray in R4? No way, unfortunately.
Raonic is very dangerous, but I think Marin would pass him but Tomic is really great on grass and Marin almost lost to him in best of 5 once. So...