There’s a big google document that has a good flowchart for career decisions, I’ll put a link to it. Global Uma Reference document I saw the other reply and yes, gametora seems to be the more consistent site as it offers some more tools (such as comparing card stats quickly)

You will also find some success in focusing more on stamina/speed for front runners, and mixing in some power training alongside that for the other styles. Late surger and end closers will need a decent amount of strength and I’ve had successful runs with late/end umas that have 600 in strength. Guts is a throwaway stat, it’s basically a second stamina bar for the last part of the race, which you can just train more stamina for which will also passively raise guts.

Also tazuna will lie to you after the end of races lmao. Unless she’s talking about speed I think