Ok -- I scraped the events table from the RUSA site, pumped through .csv & imported into Google calendar. One for all events and another for CA events.
NO GUARANTEES -- E.g., the all-RUSA import reported that it could not import two events, and the CA import reported that it could not import one event. ¯\_(ツ)_/¯
Please use at your own risk and reality-check any event that captures your attention. I do not plan to update, vet, or accept corrections -- I am done -- but I am happy to share what's there now with anyone who does want it, so there ya go. :)
(That said, if anyone discovers some huge global error that I missed in my spot-checking, please do let me know and I'll destroy the calendar.)