The short answer is 10a Saturday 11/28 at the Washington Blvd Oval.
The longer answer is I don't think this event should be promoted any more than it is. Already ~200 people show up and violate all sorts of traffic laws and pee in peoples' yards. Advertising it to more people, is, in my opinion, a mistake. It is very kind of you to promote cycling in Pittsburgh though. Perhaps you could interview Chew for an article?