What's with the final scores? Nishikata should have about 25000 more points and Hiroyuki should have about 25000 less points. That would move Nishikata to second place, which would give the East an extra 20 points in the total score. It also seems like there has been an Oka bonus - basically +10 for the first place player's team - but that didn't get applied this time.
By my calculations, the scores should be -41.2 and +41.2 for a difference of 82.4.