User blog comment:12th Supernova/Chapter 793: Bad News and Bad Translations/@comment-181.166.68.66-20150709132811/@comment-25926617-20150709184212

Yeah they did but it seems kinda unlikely that both went all out considering that Shanks was able to arrive at Marinford in time and on top of that completley unscathed. So i see it as more of a confrontaion where Shanks cut him off and then Kaido thought it wasn't worth it.