Not all horses can be strong. Unfortunately, your colt is one of those. This colt isn't too fast or too slow. Appears to have plenty left after workouts. Looks good to me.
Notes: With a little training, he'll grow into quite a strong colt. Your colt is very fast. This colt has plenty of vitality and, in turn, plenty of stamina.
I'd say this colt has an average amount of strength. This colt is real fast! Just eats up the ground. Your colt seems to have a good amount of stamina.