Parking here for future reference.
Pennsylvania Triple Crown of Trail Running:
https://patriplecrown.com/the-races/. To complete it you finish the Hyner 50k (April), Worlds End 100k (June), and Eastern States (August) in the same calendar year. All with a ton of climbing/descending. Maybe in a couple of years, if I hit marathon goals.
Run the Perimeter:
https://www.racetheperimeter.com/about. A solo or team race around the border of DC. Would be fun to organize a team and try to win.
Terrapin Mountain 50k: 3500' of gain. Could be a good tune up for Miwok.
Miwok 100k:
https://miwok100k.com/. Looks beautiful and fun, and it'd be neat to do as part of a West Coast trip. 6500'+ of gain.
Rim to River:
https://www.rimtoriverendurance.com/. The coolest seeming 100-miler within a relatively easy drive from me. It's in an absolutely beautiful part of the country at the most beautiful time of year there. 12,000' of gain. Very popular so you have to get in via lottery.