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Sieb Wiersma
| Last name | Wiersma |
| First name | Sieb |
| Gender | Male |
| Birthdate | 10.1969 |
| Country | NED |
| 500m | 43,65 (Den Haag, 14.10.2007) |
| 1.000m | 1.27,33 (Den Haag, 25.03.2008) |
| 1.500m | 2.09,20 (Heerenveen, 22.01.2008) |
| 3.000m | 4.37,32 (Den Haag, 04.11.2007) |
| 5.000m | 8.03,20 (Den Haag, 06.01.2008) |
| Sprint | 87,315 |
| Small Combo | 181,256 |
| Mini Combo | 176,601 |
| Tiny Combo | 130,381 |
| Latest update in | 2010 |
NED