High Roller Boston, Framingham

Foot-races seem like a natural fit for mingling singles. There are plenty of people, everyone has at least one common interest, and the athletic dress code means no stressing over what you're going to wear. So maybe it's surprising that events like the LUV RUN don't happen more often. Sporting color-coded bibs that denote their relationship status (blue for attached, green for available, and rainbow for available LGBT), the runners don't have to worry about a running clock. Instead, they're encouraged to slow down and mingle with their fellow participants all the way to the finish line. There, a party featuring food, beer, and music provides a fun backdrop for more mingling until 9 p.m.