Sendo is 100% losing, but I have a feeling that Mashiba will also lose. This will drive Kumi off the deep end and when Ippo thinks of returning to the ring after Sendo's loss, she'll get even more adamant on not wanting it. Which hopefully forces a decision with them. Kumi is good on the surface but she really is a terrible "girlfriend" beneath it, wanting to control him. Either Mari and Nanako would be better for him. Certainly Nanako in real life because Mari is too sophisticated for him.