| Athletes |
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Biographical data for: Bas HAMSTRA
| Classifications in season 2012/2013: |
| 25/11/12 | Leeuwarden NED | KNSB-cup 3 | Divisie A | | Overall Ranking: 14th, 500 meter: 14th | | 09/12/12 | Zoetermeer NED | KNSB-cup 4 | Divisie B | | Overall Ranking: 12th, 500 meter: 12th | | 09/02/13 | Heerenveen NED | KNSB-cup 5 | Divisie B | | Overall Ranking: 7th, 1000 meter: 7th |
| Results in season 2012/2013: |
| 500 meter |
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| 1000 meter |
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| 3000 meter relay |
| 4:23 | .024 | 25/11/12 | Leeuwarden NED | KNSB-cup 3 | Finale, Groep 1 | |
| (M3: Koen Hakkenberg, Bas Hamstra, Dennis Kruyswijk, Adwin Snellink) |
| 4:33 | .407 | 09/02/13 | Heerenveen NED | KNSB-cup 5 | Finale, Groep 1 | |
| (SCT - IJVZ - IHCL: Koen Hakkenberg, Bas Hamstra, Roderick Jansma, Koen Slootweg) |
| 4:41 | .687 | 09/12/12 | Zoetermeer NED | KNSB-cup 4 | Finale, Groep 1 | |
| (Team G: Robbert-Kees Boer, Bas Hamstra, Rosalie Huisman, Hessel Koot) |
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