Alex Meyer, the Harvard grad who sometimes trains in Walden Pond in Concord, finished 10th in the men's open water swimming race at the Olympics on Friday.
Meyer completed the 10-kilometer race in 1 hour, 50 minutes and 48.2 seconds. Winner Oussama Mellouli of Tunisia clocked a 1:49:55.1.
Meyer was the only American in the race, held at the Serpentine in London's Hyde Park.
Boston.com's Olympics interns filed the video report above from today's event.