| Name: Thirza | Surname: SIERDSMA | Country: NED  | SEASON: 2021/2022 » |
| 500 m | |||||||||
| 2554 | 42,40 | Thirza | SIERDSMA | 00-08-02 | NED | 2 | Heerenveen | 21-12-18 | |
| 1000 m | |||||||||
| 2487 | 2379 | 1.24,86 | Thirza | SIERDSMA | 00-08-02 | NED | 3 | Leeuwarden | 19-12-22 |
| 1500 m | |||||||||
| 2074 | 1975 | 2.09,86 | Thirza | SIERDSMA | 00-08-02 | NED | 1 | Heerenveen | 20-01-20 |
| 3000 m | |||||||||
| 2155 | 2074 | 4.38,45 | Thirza | SIERDSMA | 00-08-02 | NED | 4 | Heerenveen | 19-11-18 |
| Fast | |||||||||||||
| 2212 | 2346 | 128,116 | Thirza | SIERDSMA | 00-08-02 | NED | 42,40 | 1.24,86 | 2.09,86 | -- | -- | -- | 22 |
| Mini | |||||||||||||
| 2098 | 2153 | 174,524 | Thirza | SIERDSMA | 00-08-02 | NED | 42,40 | 1.24,86 | 2.09,86 | 4.38,45 | -- | -- | 22 |
| Sprint | |||||||||||||
| 2448 | 2774 | 84,830 | Thirza | SIERDSMA | 00-08-02 | NED | 42,40 | 1.24,86 | -- | -- | -- | -- | 22 |
