The ULHRA
http://www.ulhra.org/ will hold it's final race this year at Pt. Angeles this weekend.
This year 20 y.o. Kaylee Perkins will defend her National Champion position against the Hopp racing team, who lost the championship last year when he flipped his boat entering turn 1 for his first lap of the day.
In addition to UL's, the event usually includes 2.5L and 5.0L hydroplane heats as well.
ULHRA Officials usually operate on 468.850.
Boat teams are all over the map, both UHF and VHF.
I'll be in Pt. Angeles and monitor 146.420.
Or PM for cell phone / alt freq..
73,
Nick
N7QOR