(Round 2) The Polar Bear Run - Virtual 5k/10k/Half Marathon (Boston)
Running [5K, 10K, Half marathon]
Online registration ends in 8 days!
Moving up to a 10K? You can do it. Register for one of the many 10K races in Boston. Don’t be nervous, we’ll help you get to the finish line. Check out all our tips on 10K training to prep for your Boston 10K race.