I don't quite get this however. An exception was made to allow a boat that doesn't fit in the rules?
"Ken Bird and his daughter, Kaleigh, finished in an impressive third place their 23-foot Kryptonite."
OPA Rulebook
Performance Class 7:
a. Boats are limited to 60 MPH as a top speed.
b. OPA reserves the right to inspect all boats competing in the class in order to determine that it is in a condition worthy of the event
c. All registered hulls shall only be "Vee" hull from 20’-22’ in length