After moving up to the top ranks of amateur Japanese women's marathoning with a 2:36:37 PB at this year's Tokyo Marathon, club runner Shiho Kaneshige (GRlab Kanto) took another big step with a 2:33:16 PB for 14th at the Chicago Marathon . Running almost perfectly evenly, her first 5 km 18:11 and none after that faster than 17:49 or slower than 18:17, Kaneshige managed a slight negative split with a 1:16:46 first half and 1:16:30 second half. Just short of rival club runner Haruka Yamaguchi 's 2:33:09 PB in Sydney last month, with that kind of control Kaneshige looks to have plenty more room for growth. On the men's side, four Japanese men, Minato Oishi (Toyota), Tsubasa Hayakawa (Toyota), Ryoma Takeuchi (Hitachi Butsuryu) and Yuta Takahashi (Otsuka Seiyaku), went out in the second pack with the main leading group of American men. The fastest Japanese half marathoner so far this year, Oishi was almost as steady as Kaneshige the entire way as he opened with a 15:...
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