Welcome to a new year of the Races on our Radar series, where we report on cool and/or low-cost races, group runs, price and registration deadlines, and other things we think you should know about it. There are a few price bumps for longer races coming up, but since it’s apparently going to be snowpocalypse tonight, I’m including a few of my favorite low-price summer races for you to get on your calendar at the…