He had a very weird race. If you look at his approach objectively he put in a considerable number of serious attacks. He went all out on Blockhaus and it worked. He went all out on Oropa and it went badly wrong. I suspect that Oropa demoralised him to some extent. He did attack again afterwards repeatedly, but if it didn't immediately and obviously work he would knock it off straight away and lapse into passivity. Oropa showed him that his opponents were too strong to just ride away from. Sometimes weak attacks were certainly all he could manage - it's not cowardice that sees a multiple GT winner easily controlled by Reichenbach, it's physical weakness. On other occasions, his tactics were just baffling, like he doesn't have any idea how to maximise his chances when he isn't just obviously the strongest.