It's an easy flight down on a United puddlehopper, though terminal A at IAD remains annoying. They board several flights at once, which means inevitable chaos from people who don't understand how it works. In this case, a gate agent for another flight came on to our plane at least 4 times, trying to track down someone missing from the Knoxville flight.
I stayed at the Hyatt Place, which was adequate. My biggest complaints are that: 1) the sound proofing was inadequate and 2) the heat worked via one of those underwindow units where you turn a dial, instead of via a thermostat.
As for the Volksmarch events, the historic Greenville event was excellent, including the West End (which has Fluor Field, where the Greenville Drive, a Red Sox affiliate play, and the Shoeless Joe Jackson Museum) before a bit of Falls Park on the Reedy, the Hampton-Pinckney Historic District, Heritage Green (with various museums), and Main Street. The other event - which I opted to do only the 5K version of because it was drizzly - was less interesting, mostly through various parks (including much more of Falls Park on the Reedy), though it did include the statue of Shoeles Joe Jackson to qualify as a baseball event. So both were baseball events and qualified to finish that program.
Getting home was easy and we even got in early. All in all, a nice weekend excursion.