At least five major races fill the calendar this weekend across Japan. Potentially the biggest is the Karatsu 10-Miler , where half marathon national record holder Yuta Shitara (Honda) is slated to run in what many hope will be a shot at the antique national record. Over 30 seconds faster than the American national record, Hisatoshi Shintaku 's 45:40,has stood since 1984 and survived over three decades of assaults including Shitara's 45:58 at December's Kumamoto Kosa 10-Miler. It translates to 42:34 for 15 km; at last weekend's Marugame Half Shitara went through 15 km in 42:39. Just two weeks out from a shot at the Japanese national record for the marathon will Shitara try to add another national record to his resume en route to Tokyo? Many of his corporate league brethren and sistren will be lining up at the National Corporate Half Marathon and 10 km Championships. Historically the world's deepest competitive men's half marathon and second-deepest women...
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