Monica Rakitt (Puig) smashed her marathon PR in Boston by a whopping 42 minutes! By following the 3:15-3:35 marathon plan and getting expert guidance from our COROS Coaching service, @monicaace93 was able to shave off those precious minutes in just 5 months! Want to know more about Monica's training and epic race day performance? Check out the link in our bio for all the deets! ⌚: APEX 2 📷: @pacephoto #exploreperfection #TrainwithCOROS