Thanks for this thread, IcemanSK, it definitely brings back some memories!
Karyn Turner used to promote a lot of PKA cards in Denver, and I saw Bill Wallace, Dennis Alexio, Troy Dorsey, and a whole lot more very talented fighters, in that era.
Theriault was also one of my favorites, because of his power, incredible timing, and killer instinct. Local hero, and PKA Bantamweight Champion, Felipe Garcia was also a favorite, and he fought in some great bouts here. "Bad" Brad Hefton was also one of my favorites.
I used to work out with, and spar with Chris Gallegos and his fighters. Chris was ranked 4th by the PKA in the Light Welterweight division, in 1980. One of his fighters, Ron Cisneros, fought as a PKA amateur, and then turned pro in both the PKA, and boxing. He went 14-0 as a pro boxer, before getting a title shot against then-WBA Bantamweight Champion, Richie Sandoval.
Ron wasn't ready for someone like Sandoval, and was stopped via 4th round TKO. He continued to fight for several more years, and unfortunately passed away a few years ago. His son, Mike Alvarado, is currently a pro boxer, a welterweight, who is 16-0.