RSVP (and pace) is totally casual. Even if you don't see people signed up on Meetup, there are always a handful of regulars out for the run. Between 10 and 20, depending on the state of the skies and desire for beer.
Running and brewing compliment each other in a beautifully circular fashion. One provides a cause for celebration and need for sustenance. The other provides the sustenance, means of celebration, and need to run.
Meet at Flying Lion Brewing every Monday for 5 miles (there is also a 5 kilometer option) at whatever pace you fancy. Evan Williams (SRC runner and brewer) designed the course to resemble the profile of FLB's logo. Enjoy the lion's nose/mane through area parks and climb "The Wing" back to the neighborhood streets.
Pints after are optional, of course. The brewery will also provide water and the next door neighbors are Full Tilt Ice Cream! Kids and dogs both allowed in the brewery, but no beer for the kids.