Shouldn't the ref have stopped the match after the first body blow? Wakano looked kind of out of it already at that point.
Apart from that, her hit to police girl's face seemed to have drawn blood, so I was surprised to see no evidence of that later. Or were all those dark droplets just sweat?
It'll be interesting to find out what "full power" entails... I'm not sure that it is going to get that girl anywhere, but who knows, I'm also not really convinced that Satoru is truly in love with Saotome, so it just might (if she can manage to make him see her as a potential partner, and not just a buddy). Plus, she's shorter, that could work in her favour.