5Ks, First Dates & Freestyle Nights Off The Red Line

This week’s got legs and laughs — the Somerville 5K hits Davis, the Comedy Dating Show takes over Aeronaut, and speed dating season starts with an event in Kendall Square. Add in Live Music Wednesdays at The Sea Hag, Survivor night at Lamplighter, and Sunday Sessions open mics, and you’ve got a fall lineup built for running, riffing, and meeting someone new.