Stefannie Arissa Koyama Judoka
Stefannie Arissa Koyama
Country: Brazil
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Born: 30 June 1995 (29 years)
Brazilian judoka Stefannie Arissa Koyama was born in the Gunma Prefecture in Japan Koyama won the Grand Slam in Baku in 2017. She had won bronze at the All Japan Judo Championships in Fukuoka in 2016 as well as the East Asian title. She fights for Brazil since 2017. Koyama's teammate was always Funa Tonaki at Teikyo university but switched to Brazil end of 2016. She won gold at the Grand Prix in Tbilisi in 2017.
Match balance of all judo contests of the judoka
| Year | Matches | Won | Lost | % won |
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| Last 20 | 19 | 13 | 6 | 68.4 % |
| Last 25 | 19 | 13 | 6 | 68.4 % |
Last 6 contests
| Date | Opponent | Noc | Rnd | W/L | Type | Event | Cat | VIDEO |
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| 16 Dec 2017 | Munkhbat, Urantsetseg | MGL | 3/5 | L | IJFMA | St. Petersburg | U48 |
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| 16 Dec 2017 | Clement, Melanie | FRA | 5/7 | W | IJFMA | St. Petersburg | U48 |
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| 16 Dec 2017 | Tonaki, Funa | JPN | 1/4 | L | IJFMA | St. Petersburg | U48 |
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| 16 Dec 2017 | Giliazova, Sabina | AIN | 1/8 | W | IJFMA | St. Petersburg | U48 |
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| 2 Dec 2017 | Clement, Melanie | FRA | 1/16 | L | GSL | Tokyo | U48 |
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| 28 Aug 2017 | Tonaki, Funa | JPN | 1/8 | L | WCh | Budapest | U48 |
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Last 6 judo events with all contests at the event
| Date | Result | Judo event | Type | Cat. | |||||||||||||||||||||
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| 16/12/2017 | 5 | IJF World Masters St. Petersburg | IJFMA | U48 | |||||||||||||||||||||
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| 28/04/2017 | 3 | Pan American Championships Panama | PanCH | U48 | |||||||||||||||||||||
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| 31/03/2017 | 1 | Grand Prix Tbilisi | GP | U48 | |||||||||||||||||||||
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| 10/03/2017 | 1 | Grand Slam Baku | GSL | U48 | |||||||||||||||||||||
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| 02/10/2016 | 2 | Japan University Championships Tokyo | NUC | U48 | |||||||||||||||||||||
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| 02/07/2016 | 1 | East Asian Championships Hong Kong | EAC | U48 | |||||||||||||||||||||
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| Date | Result | Type | Cat. | |||||||||||||||||||||
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| 16/12/2017 | 5 | IJFMA | U48 |
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| Date | Result | Type | Cat. | |||||||||||||||||
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| 28/04/2017 | 3 | PanCH | U48 |
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| Date | Result | Type | Cat. | |||||||||||||||||||||
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| 31/03/2017 | 1 | GP | U48 |
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| Date | Result | Type | Cat. | |||||||||||||||||||||
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| 10/03/2017 | 1 | GSL | U48 |
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| Date | Result | Type | Cat. | |||||
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| 02/10/2016 | 2 | NUC | U48 |
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| Date | Result | Type | Cat. | |||||
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| 02/07/2016 | 1 | EAC | U48 |
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