This originally got mentioned in the "Gran Fondo" thread: the Dog Daze ride, 27/50/77/100 miles, sponsored by the Brandywine bicycle club.
The weather forecast is for highs in the mid-80s and low chance of rain.
I think I'll be going. I'm not sure I'd want anyone to ride with me -- I'm slow (probably avg 10-11 mph) -- but if any of the BF gang will be there, I'd love to say hi face-to-face.
Edit: forgot the link -- http://www.brandywinebicycleclub.org/