by Brett Larner This weekend is a lull in the middle of Japan's seven-week elite marathon season, but there's still plenty going on. Both of its main 30 km road races, Kumamoto's Kumanichi 30 km and Tokyo's Ome 30 km, t he world's two greatest races at the distance , happen Sunday. Run in conjunction with the mass participation Kumamoto-jo Marathon, the Kumanichi 30 km is an elite-only event with small men's and women's fields and the home of Takayuki Matsumiya 's 1:28:00 national record. Toyo University graduate Ryu Takaku (Team Yakult) leads the field with a 1:30:32 in Kumanichi three years ago. Current Toyo runner Shun Sakuraoka and past 1500 m and 5000 m national champion Yuichiro Ueno (DeNA RC) are his main competition. Mami Onuki (Team Sysmex) has the best 30 km time in the women's field, 1:46:37 for 2nd in last year's race, but the favorite may be the debuting Ayumi Kubo (Team Kagoshima Ginko), a 1:11:29 half marathoner. Th...
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