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Sieko Bos
| Last name | Bos |
| First name | Sieko |
| Gender | Male |
| Birthdate | 07.1978 |
| Country | NED |
| 500m | 41,18 (Heerenveen, 02.01.1998) |
| 1.000m | 1.22,32 (Groningen, 20.12.1997) |
| 1.500m | 2.05,04 (Heerenveen, 02.01.1998) |
| 3.000m | 4.22,28 (Heerenveen, 11.01.1998) |
| 5.000m | 7.41,65 (Groningen, 14.02.1998) |
| 10.000m | 16.22,44 (Groningen, 23.02.1997) |
| Big Combo | 178,147 |
| Sprint | 82,340 |
| Small Combo | 172,738 |
| Mini Combo | 167,733 |
| Tiny Combo | 124,020 |
| Latest update in | 1998 |
NED