Siem van der Bas
Netherlands (NED)
January 2012 (MYB)
Personal Records
| 500m | 1.00,19 | 10 March 2024 | Den Haag (NED) |
Season Bests
| 300m | 37,07 | 10 March 2024 | Den Haag (NED) |
| 500m | 1.00,19 | 10 March 2024 | Den Haag (NED) |
| 100m | 15,17 | 12 March 2023 | Den Haag (NED) |
| 300m | 39,90 | 12 March 2023 | Den Haag (NED) |
| 100m | 14,42 | 11 December 2021 | Rotterdam (NED) |
| 300m | 40,93 | 20 March 2022 | Den Haag (NED) |
| 500m | 1.12,86 | 15 January 2022 | Rotterdam (NED) |
| 100m | 16,65 | 21 December 2019 | Rotterdam (NED) |
| 500m | 1.19,38 | 15 February 2020 | Rotterdam (NED) |
| 100m | 19,14 | 1 March 2019 | Den Haag (NED) |
| 500m | 2.04,38 | 15 December 2018 | Rotterdam (NED) |
Results
| CK DVIJC en OTWEG 2024 | Den Haag (NED) | 10 March 2024 | ||||||||
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| District Kampioenschap Pupillen | Leiden (NED) | 2 December 2023 | ||||||||
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| CK DVIJC en OTWEG | Den Haag (NED) | 12 March 2023 | ||||||||
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| CK SIL en OTWEG | Den Haag (NED) | 20 March 2022 | ||||||||
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| 2e Drempelwedstrijd | Rotterdam (NED) | 15 January 2022 | ||||||||
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Native Language Names