The 'DC Pacelines' website mentioned here above appears to have been abandoned. It hasn't been updated in a long time. I submitted a correction and addition twice and the changes were not made to the site. A ride leader I know has also been persistently trying to get their ride description corrected--without success.
So, as far as I know, this forum thread returns to being the most up to date and comprehensive source for fast training rides.
I have put in an update to the weekdays
12:30 pm Bethesda Ride at post
#54 .
I was told the following regarding the
Tuesday/Thursday Goon Ride (described at least once here, previously): The ride starts in Garrett Park at or near the northernmost end of Beach Drive. The start time varies according to sunset times. Right now, it's starting at 6:30 pm; it will start earlier as the days become shorter--it has been 5:30 pm in late October. The hardest parts are the climbs up Ridge Rd and Stoneybrook Dr.
I have been told there is
Tuesday/Thursday 6 pm Hains Point ride that starts out with a fairly large pack but gets whittled down due to the high speeds. Personally, I will check out the Tuesday edition--Thursdays are too crowded for comfort with pedestrians, rollerbladers and slow riders...
9/4/19: I just learned about a
Bicycle Place Wednesday Evening Ride. The start times get earlier as the days get shorter. 6:15 pm, at the moment. Looks like they aim for about a 1 1/4 hour ride, assuming it ends at sundown. Part of the ride is on the newly paved, super smooth, Beach Drive...