Amazing progress so far! I can't believe you've already done so many!
Are you going to allow yourself to repeat any states? Or are you going to avoid registering for any marathon in a state you've already done?
I've only done: Connecticut (Hartford Marathon twice), Idaho (Hayden Lake Half), Washington (Whidbey Island Marathon, and Race the Reserve Half Marathon), and Arizona (Rock and Roll Arizona with you!). Also, I did a half in Germany in Freiburg twice. So, not a state, obviously, but it counts for something:-).
I will let myself repeat states (for instance I've run 4 half marathons in Illinois), but I just won't count them as anything additional on my count.
You've got a great start to all 50 states yourself! And Germany!!! I would love to add other countries to my list someday too.
If you're going to be in Washington July 29, we can do the Jack and Jill downhill half marathon. It's a strictly downhill point-to-point course. Also, for Oregon, I'd love to do an event at the Pacific Crest Endurance Sports festival. I'd probably do a multi-sport event (bike+run), but they also have some just running events.
I like the sounds of downhill races! I still need both Washington and Oregon, so let's find some!