If you find errors, if you know of schedule changes, cancellations, etc., if you know of any races that might fit into my list, please, email me at firstname.lastname@example.org and include as much detail as possible. My general scheme, which unfolded spontaneously, more or less, is that I'll go as far as 50 miles for a 5K, 100 miles for a 10K or 5 miler, 200 miles for a 10 miler to half-marathon, the ends of the earth for the right marathon. (I drove eight or nine hours to get to the Chicago Marathon in '97.) The limits are not cast in stone. And there are exceptions, ie. The Debbie Green 5K, in Wheeling, approximately a 200 mile drive. I haven't made it, yet, but, I hope to.
Of course, I do some independent research, as well. Some races I list won't be listed on any of the sites, below. I think that they should be.
The following are a few sites I find very useful when looking for races. They cover a lot larger geographical area than I do.