Boston Marathon qualifying races: calendar
251 races scheduled between October 2026 and October 2027. Countries with the most races: Japan, India and Italy. Every race lists dates, locations, distances and official links; the list is updated daily.
08NOV 26MARATHON21K10K5K
Korat MarathonNong Phai Lom · Thailand · in 18 days15NOV 26
MARATHON21K10K5K
Bangkok MarathonBangkok · Thailand · in 25 days
15NOV 26MARATHON
Bangsaen42 Chonburi MarathonBang Saen · Thailand · in 25 days13DEC 26
MARATHON21K10K5K
Photak MarathonBan Phon Thong · Thailand · in 53 days
20DEC 26MARATHON21K10K3K
Chiang Mai MarathonChiang Mai · Thailand · in 60 days · 42K · US$4609JAN 27
MARATHON21K10K5K
Khao Yai MarathonMu Si · Thailand · in 80 days · 42K · US$37
09JAN 27MARATHON21K12K4.5K
Khon Kaen International MarathonKhon Kaen · Thailand · in 80 days
23JAN 27MARATHON21K10K4.6K
Buriram MarathonBuri Ram · Thailand · in 94 days12JUN 27
MARATHON21K10K5K
Laguna Phuket MarathonBan Bang Thao · Thailand · in 234 days · 42K · US$95JUL 27
MARATHON21K10K
Marathon de PattayaPattaya · ThailandAUG 27
MARATHON21K10K5K
Songkhla MarathonSongkhla · Thailand