>>1780860
You can use the following for a base strategy:
- The more behind your uma position is, more PWR she will need
- The longer the track is, more STA is required
- You can avoid training STA by getting stamina skills (blue skills) - this really depends on your strategy
- Late Surger and End Chaser umas are way more difficult to win career because there're RNG factors against it like your uma being stuck between opponents and can't break from the pack

When starting a new career, you need to fill up friendship gauge with your supports, as soon they reach orange bar, they unlock friendship training which will give more stats when training. As you can read on this thread, SPD is key unless you're either Late or End. Front and Pace can go full nuts on SPD but do pay attention if your uma career has medium or long races, then you need to use or borrow at least one STA support (PWR type umas already naturally trains STA). A popular easy career mode for URA is Sakura Bakushin with full 6 SPD cards, it's a good way to feel like how a career mode is right now while easily winning everything.

Also, this tool has everything
https://gametora.com/umamusume/training-event-helper