The only two ways to tell are as you've said, doing an extra comp and noting no more skill gain
Or if you have rides and matching training bar done you'll be able to see when the skill bolds as long as you check after each comp

the only other thing I can think of and I'm not 100% sure on it. someone else can clarify. but I think there's a # of comps you need to enter to max out on it. I don't know what that # is though. or if this is correct. I think there's something along these lines but not 100% on how it works. so if there's a # you have to enter you could keep track of that.

You need 25 comps to gain all the skills from a comp

As said above, it takes 25 comp entries to max out the skill gain from that comp type, or 13 entries if the horse has a Chronos Timer.

If you're BLUPing a single horse in one sitting on mobile, then the easiest way to know when you're done with comps is to just count how many you enter. If you're like me and you tend to lose track of numbers, then it might be easier to just take note of the horse's age when you start entering comps. Since you can enter 6 comps a day (without any BMIs), it'll take 4 full days of comping, plus one extra comp. So if you start entering your horse in comps when it's 4 years and 2 months old, then you'll finish after you do one comp on the day it turns 4 years 10 months.

If you're comping horses over the course of multiple real life days, so you can't just mentally count the number of comps, then it might be easier to keep track of how many comps they've entered by writing it in the horse's name, or in the breeding farm name.

Thank you so much!!!

Thank you

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