FYI: According to the Timberman web site, about 50 additional slots have become available, due to recent withdrawals. This may be old news, but it was news to me!
If you thought you had missed your chance to sign up:
The race is August 23.
I was just about to post the same "news" thinking I was on to something spectacular! Such a great race, and there's always a good group of DC Tri folks there. I'm in!