After a 30-month gap, the Boston Marathon returned on Monday with the 125th running of the world's oldest annual marathon. For the first time since the inaugural event in 1897, the race was canceled and run virtually last year due to the coronavirus pandemic. Swipe to see some of the best photos from the 2021 race! 🏃 #BostonMarathon #BostonMarathon2021 #sports 📷: @usatodaysports @apnews