| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2016 | Pepsideild | 1 | 1 | 0 | 0 | — | — |
| 2017 | Pepsideild | 6 | 348 | 0 | 0 | 0 | — |
| 2018 | Pepsideild | 19 | 1414 | 6 | 0 | 0.38 | — |
| 2019 | Vysshaya Liga | 19 | 748 | 1 | 0 | 0.12 | — |
| 2020 | Vysshaya Liga | 18 | 1115 | 3 | 1 | 0.32 | — |
| 2021 | Vysshaya Liga | 9 | 247 | 1 | 0 | 0.36 | — |
| 2022 | Vysshaya Liga | 10 | 835 | 4 | 2 | 0.65 | — |
| 2022/2023 | Eredivisie | 27 | 2187 | 8 | 3 | 0.45 | 7 |
| 2023/2024 | Eredivisie | 31 | 2679 | 7 | 2 | 0.3 | 7.28 |
| 2024/2025 | League One (England) | 40 | 3032 | 6 | 6 | 0.36 | 7.12 |
| 2025/2026 | Eredivisie | 4 | 97 | 0 | 0 | 0 | 6.52 |
| 2025/2026 | Championship (England) | 10 | 393 | 0 | 0 | 0 | 6.6 |
| 2026 | Pepsideild | 1 | 13 | 1 | 0 | — | 7.13 |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Figures computed from the GioScore season-stats database · as of 2026-07-27
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 AZ | 5 | 0 | 0 | 5 | 1 | 0 | 0 | 0 |
 Feyenoord | 5 | 0 | 1 | 4 | 0 | 0 | 0 | 0 |
 Ajax | 5 | 0 | 4 | 1 | 1 | 0 | 0 | 0 |
 PSV | 5 | 2 | 0 | 3 | 0 | 0 | 0 | 0 |
 FC Utrecht | 5 | 1 | 1 | 3 | 1 | 0 | 1 | 0 |
 Fortuna Sittard | 5 | 3 | 1 | 1 | 1 | 0 | 0 | 0 |
 Excelsior | 5 | 3 | 1 | 1 | 3 | 1 | 0 | 0 |
 FC Volendam | 5 | 5 | 0 | 0 | 1 | 1 | 0 | 0 |
 Vitesse | 4 | 2 | 1 | 1 | 2 | 0 | 0 | 1 |
 NEC Nijmegen | 4 | 1 | 3 | 0 | 0 | 0 | 0 | 0 |
 FC Twente | 4 | 1 | 1 | 2 | 1 | 0 | 0 | 0 |
 RKC Waalwijk | 4 | 3 | 0 | 1 | 1 | 0 | 0 | 0 |
 SC Heerenveen | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 |
 Cambridge United | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
 Peterborough United | 3 | 2 | 0 | 1 | 1 | 0 | 0 | 0 |
 Lincoln City | 3 | 3 | 0 | 0 | 1 | 1 | 0 | 0 |
 Sparta Rotterdam | 3 | 1 | 2 | 0 | 1 | 0 | 1 | 0 |
 Heracles Almelo | 3 | 2 | 0 | 1 | 1 | 1 | 0 | 0 |
 Gorodeya | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
 Charlton Athletic | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Turkey | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Wales | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Montenegro | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Kosovo | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Italy U21 | 2 | 0 | 0 | 2 | 1 | 0 | 0 | 0 |
 Sweden | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Ukraine | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Bosnia and Herzegovina | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 France | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Slovakia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Israel | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Northern Ireland | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Portugal | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Scotland | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Luxembourg | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Liechtenstein | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
 Sweden U21 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 North. Ireland U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Spain U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Denmark U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Over 10 Championship (England) games in 2025/2026 (393 minutes), Willum Thór Willumsson recorded no direct goal contributions. His average match rating for that season computes to 6.6.
Season ratings peak at 7.28 in 2023/2024, Eredivisie and bottom out at 6.6 in 2025/2026. The direction of late is downward — 0.28 under his prior average over the last two rated seasons.
