Stamina Calculator

To determine whether your uma has enough stamina, use this spreadsheet, which isn’t track-specific but works fine. Most notably, it doesn’t consider hills, so will often overestimate your required stamina. You’ll want to leave the “consider skill proc rate” option off. Average doesn’t make sense for heals, you get them or you don’t, so the “chance of failure” is the important stat rather than your average.

You could also plug their information into this calculator. The options, despite looking like they’re all off, actually default to on, so you’ll have to turn them on and back off again to get closer to Global. There are probably various differences in the code, from updated mechanics (like Guts) to updated course data, so it will be more accurate the more time passes.

Or, you can use the Umalator, which is sometimes a bit more work. There’s a section on using it to check stamina here. All three will usually give results within 100-200 Stamina of each other.