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Koos Wiersma
| Last name | Wiersma |
| First name | Koos |
| Gender | Male |
| Birthdate | 09.1966 |
| Country | NED |
| 500m | 43,33 (Heerenveen, 15.03.2000) |
| 1.000m | 1.26,89 (Eindhoven, 20.02.2000) |
| 1.500m | 2.13,34 (Heerenveen, 15.03.2000) |
| 3.000m | 4.43,17 (Berlin, 25.02.2000) |
| 5.000m | 8.21,47 (Nijmegen, 19.03.2000) |
| 10.000m | 17.22,3 (Heerenveen, 24.03.2000) |
| Big Combo | 190,038 |
| Sprint | 86,775 |
| Small Combo | 185,118 |
| Mini Combo | 178,416 |
| Tiny Combo | 131,221 |
| Latest update in | 2000 |
NED