Yeah and he was only in second place. I can't really imagine playing to that extent.. never mind the fact that when you consider it the rewards are most definitely not even close to being worth it imo. The monster trio ranking event was a lot more intense than the admiral one, but it was still pretty easy to snag a free red poster or 2 without much effort. I only ended up getting 2 pulls because I decided to just focus on Luffy runs(top 2k) since he was the hardest and the other 2 were moving too quickly to reliably hold without playing a ton.
One of the things I really like about this game is how low little focus it really requires; perfect to play while listening to a book/lecture, while watching a movie or binging on netflix.