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Compiled by Mirko Jalava, Tilastopaja Oy.
Please note: you can access the full athlete database with more details as a Tilastopaja member, click on the link to get more details.
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Click on the country flag too see the national indoor records for that country.
Japan  -
PERSONAL BESTS:
| 4 x 100 m
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| Outdoor | 38.03 | AR | | 5 | WC | Osaka | 1 September 2007 |
4 x 400 m
Winstreak: 1 (finals) |
| Outdoor | 3:00.76 | AR | | 5 | OG | Atlanta GA | 3 August 1996 |
| Indoor | 3:05.90 | AR | | 2h1 | WC | Maebashi | 6 March 1999 |
SEASONAL BESTS 2013:
| 4 x 400 m
| | Outdoor | 3:06.00 | | | 1 | MSR | Walnut CA | 20 April 2013 |
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