User blog comment:Ghmorello/Chapter 921: Rock The Dragon/@comment-3027602-20181019080917/@comment-24850639-20181019154206

That was a stalemate if anything, Jack definitely did not win decisively. I also doubt Oda would have Shutenmaru refer to him as a "small fry" if he was meant to lose that fight. Him slicing Jack wasn't a cheapshot, Jack clearly braced for Shutenmaru's attack before it happened.