Current success fielder speedrun is very basic, mostly skipping and not much normal gameplay. I think it'd be fun if you have to get at least As in all ratings (or at least Bs). I know all As is very possible, but maybe is too difficult of a condition to be fun for speedruns. Would be interesting to see how you have to optimize practice and playing in games vs. skipping.

I think I might route one

btw I did it, both the pitcher all A's and fielder all A's are up on my youtube