The Japan Association of Athletics Federations clarified the selection process for the men's and women's marathons for the 2016 Rio de Janeiro Olympics in Tokyo on Thursday.

The JAAF designated four events apiece for the men and women as trial races: next month's IAAF World Athletics Championships in Beijing, Fukuoka International Marathon, Tokyo Marathon and Lake Biwa Mainichi Marathon for the men, and the World Championships, newly established Saitama International Marathon, Osaka International Women's Marathon and Nagoya Women's Marathon for the women.

The national team will send up to three members each to the Rio Games.