Free Step Dodge

Ayane did.

think it was ayane, since it ends with her taking control of the hajimon sect and that carries on into DOA4, i don't think zack has actually won any tournaments, so how he gets money to buy a whole freaking island is beyond me, guess the brotha is resourceful

Zack went treasure hunting with Nikki that’s why he’s rich.

Ayane won but she left before they can say she's the winner and since Zack was 2nd place, I guess, he won it by default. Same deal with Hayabusa winning but Zack got the prize as Hayabusa left.