There are a lot of Japanese athletes racing overseas this weekend, but at home the main action is the National University Women's Half Marathon Sunday in Matsue. Last year's runner-up Rio Einaga of Osaka Gakuin University and 3rd and 5th-placers Saki Harada and Nanase Tanimoto from six-time national champion Meijo University lead the entry list, with their top competition including Saki Arai of