© Photo: patrik forström
William Koski
#41 Nacka HK U20 / U20 Region - 26/27
- Date of Birth
- Apr 26, 2009
- Age
- 17
- Place of Birth
- -
- Nation
- Sweden
- Youth Team
- Värmdö HC
- Position
- G
- Height
- 181 cm / 5'11"
- Weight
- 71 kg / 157 lbs
- Catches
- L
- Contract
- Junior
| Post | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-2024 |  Nacka HK U16 | U16 Div.1 | 0 | - | - | - | - | ||||||
| 2024-2025 | Brinkens IF U16 | U16 Div.1 | 17 | 2.75 | .888 | 0 | 12-5-0 | Playoffs QC | 2 | 3.00 | .872 | 0 | 1-1-0 |
| 2024-2025 | Brinkens IF U16 | U16 SM | 2 | 4.62 | .815 | 0 | 0-2-0 | ||||||
| 2025-2026 | Huddinge IK U18 | U18 Region | 5 | 3.60 | .857 | 0 | 1-4-0 | ||||||
| 2025-2026 | Huddinge IK U18 | U18 Nationell | 2 | 9.87 | .720 | 0 | 0-2-0 | ||||||
| 2025-2026 | Värmdö HC U18 | U18 Region | 5 | 3.16 | .919 | 0 | 3-2-0 | Relegation | 7 | 2.62 | .903 | 0 | 4-3-0 |
| 2025-2026 | Värmdö HC U18 2 | U18 Div.1 | 1 | 1.00 | .964 | 0 | 1-0-0 | ||||||
| 2026-2027 | Nacka HK U18 | U18 Region | 12 | 1.41 | .961 | 4 | 7-5-0 | ||||||
| 2026-2027 | Nacka HK U20 | U20 Region | 2 | 3.55 | .881 | 0 | 0-2-0 |
| Post | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-2022 | Sweden Selects U13 | WSI U13 | 4 | - | .848 | - | - | ||||||
| 2025-2026 | Hockeynews Rockers | IAHL | 2 | - | - | - | - |
| IAHL | 1 | 2 | - | - | - | - | 0 | |||||
| U16 Div.1 | 2 | 17 | 2.75 | .888 | 0 | 12-5-0 | 1 | 2 | 3.00 | .872 | 0 | 1-1-0 |
| U16 SM | 1 | 2 | 4.62 | .815 | 0 | 0-2-0 | 0 | |||||
| U18 Div.1 | 1 | 1 | 1.00 | .964 | 0 | 1-0-0 | 0 | |||||
| U18 Nationell | 1 | 2 | 9.87 | .720 | 0 | 0-2-0 | 0 | |||||
| U18 Region | 2 | 22 | 2.30 | .933 | 4 | 11-11-0 | 1 | 7 | 2.62 | .903 | 0 | 4-3-0 |
| U20 Region | 1 | 2 | 3.55 | .881 | 0 | 0-2-0 | 0 | |||||
 WSI U13 | 1 | 4 | 5.25* | .848 | - | - | 0 |
* Some data is missing to provide a correct summary.
| Brinkens IF U16 | 1 | 19 | 2.86 | .883 | 0 | 12-7-0 | 1 | 2 | 3.00 | .872 | 0 | 1-1-0 |
| Hockeynews Rockers | 1 | 2 | - | - | - | - | 0 | |||||
| Huddinge IK U18 | 1 | 7 | 4.98 | .818 | 0 | 1-6-0 | 0 | |||||
| Nacka HK U16 | 1 | 0 | - | - | - | - | 0 | |||||
| Nacka HK U18 | 1 | 12 | 1.41 | .961 | 4 | 7-5-0 | 0 | |||||
| Nacka HK U20 | 1 | 2 | 3.55 | .881 | 0 | 0-2-0 | 0 | |||||
| Sweden Selects U13 | 1 | 4 | 5.25* | .848 | - | - | 0 | |||||
| Värmdö HC U18 | 1 | 5 | 3.16 | .919 | 0 | 3-2-0 | 1 | 7 | 2.62 | .903 | 0 | 4-3-0 |
| Värmdö HC U18 2 | 1 | 1 | 1.00 | .964 | 0 | 1-0-0 | 0 |
* Some data is missing to provide a correct summary.