It’s all about the progression 💪 Find the full video on our YouTube channel trolltraining 👌 In this video trolltraining coach, alexmartin_26 takes on marathon #4 and talks about his progression in running over the past few years. #trolltraining #running #marathon #10k #sub3 #longdistancerunner #training #trainer #fitness #run #supercross #moto #medcity