Adidas Created Personalized Videos for 30,000 Boston Marathon Runners in 24 Hours

Brand worked with agency Grow to pull off the feat

This year’s 30,000-plus Boston Marathon runners faced brutal conditions as they worked their way through 26.2 miles in freezing rain. While crossing the finish line at the end of the day is likely a deeply satisfying reward in itself, Adidas added a lovely (and very impressive) personalized touch for each runner, with help from digital agency Grow.