Yuuki Koiwa
Japan (JPN)
Male
Personal Records
| 500m | 38,84 | 4 February 2019 | Nagano (JPN) |
| 1000m | 1.19,69 | 5 February 2019 | Nagano (JPN) |
| 1500m | 2.08,33 | 5 February 2018 | Nagano (JPN) |
Season Bests
| 500m | 38,84 | 4 February 2019 | Nagano (JPN) |
| 1000m | 1.19,69 | 5 February 2019 | Nagano (JPN) |
| 1500m | 2.11,69 | 24 November 2018 | Kushiro (JPN) |
| 500m | 41,60 | 7 January 2018 | Obihiro (JPN) |
| 1000m | 1.28,39 | 25 February 2018 | Kushiro (JPN) |
| 1500m | 2.08,33 | 5 February 2018 | Nagano (JPN) |
| 500m | 44,14 | 25 February 2017 | Kushiro (JPN) |
| 1000m | 1.34,73 | 22 January 2017 | Akan (JPN) |
| 1500m | 2.25,89 | 25 February 2017 | Kushiro (JPN) |
| 500m | 49,12 | 13 December 2015 | Kushiro (JPN) |
Results
| 39th National Junior High School Competition | Nagano (JPN) | 4 - 5 February 2019 | ||||||||||||
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| 58th East Hokkaido Competition (Higashi) | Nakashibetsu (JPN) | 19 January 2019 | ||||||||||||
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| 41st Hokkaido Speed Skating Games | Akan (JPN) | 12 - 13 January 2019 | ||||||||||||
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| 49th Hokkaido JHS Competition | Tomakomai (JPN) | 6 - 7 January 2019 | ||||||||||||
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| 16th World Jr. Memorial | Kushiro (JPN) | 8 - 9 December 2018 | ||||||||||||
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Native Language Names