Okay, that seems easy.

So for example.

I have a horse, Love to Win.

2 yo stats

Speed 99
Staying 99
Stamina 68

8 yo stats

Speed 87
Stay 86
Stam 68

I would take the lower of the stats (8 yo) and check the conversion chart to see the peak stats are 109, 108, etc.

Is that correct?

So I would find that at peak, 109 was the speed.

Thanks so much for the help!