Events in Sport
- 111th Boston Marathon: Robert Kipkoech Cheruiyot of Kenya goes back-to-back for 3rd title in 2:14:13; Lidiya Grigoryeva of Russia wins women's race in 2:29:18
Deaths in Sport
- Gaetan Duchesne, Canadian hockey player (b. 1962)
- Maria Lenk, Brazilian swimmer and first Brazilian woman to compete in the Olympic Games (b. 1915)