Were you asking/pushing him for speed in this 21 second run?
If so, I wouldn't do that.
With only a month on the barrel pattern, speed shouldn't be in your mind yet. Making perfect patterns at the walk and trot (and potentially slow gallop) should be your number one priority, keeping your horse calm and collected the entire time.
It's always a good idea to start hauling a horse to get them used to the sights and sounds of a barrel race or show, and even better if the show allows you to do exhibition practice runs. Again, don't go for speed yet. You have plenty of years ahead of you for that.
∞•*˚ Βгįťţαňγ ˚*•∞
It is not enough to know how to ride; one must know how to fall.