| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2017 | Serie B | 14 | 1215 | 4 | 0 | 0.3 | 7.36 |
| 2018 | Serie A | 6 | 451 | 0 | 0 | 0 | 6.87 |
| 2019 | Serie A | 10 | 742 | 0 | 0 | 0 | 6.97 |
| 2020 | Serie A | 12 | 735 | 0 | 0 | 0 | 6.78 |
| 2021 | Serie A | 4 | 360 | 0 | 0 | 0 | 7.24 |
| 2022 | Serie A | 11 | 628 | 0 | 0 | 0 | 6.79 |
| 2023/2024 | Pro League | 16 | 1268 | 0 | 1 | 0.07 | 7.04 |
| 2025 | Serie B | 27 | 2347 | 0 | 0 | 0 | 6.94 |
| 2026 | Serie B | 8 | 562 | 0 | 0 | 0 | 6.48 |
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 2026-07-24
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Athletico PR | 10 | 4 | 2 | 4 | 0 | 0 | 0 | 0 |
 Fluminense | 8 | 3 | 1 | 4 | 0 | 0 | 0 | 0 |
 Atlético Mineiro | 8 | 2 | 2 | 4 | 0 | 0 | 0 | 0 |
 Corinthians | 7 | 2 | 2 | 3 | 0 | 0 | 0 | 0 |
 Palmeiras | 7 | 1 | 3 | 3 | 0 | 0 | 0 | 0 |
 Fortaleza | 7 | 3 | 3 | 1 | 1 | 0 | 1 | 0 |
 América Mineiro | 7 | 3 | 2 | 2 | 0 | 0 | 0 | 0 |
 Chapecoense | 6 | 2 | 3 | 1 | 0 | 0 | 0 | 0 |
 Flamengo | 6 | 2 | 0 | 4 | 0 | 0 | 0 | 0 |
 Santos | 6 | 0 | 3 | 3 | 0 | 0 | 0 | 0 |
 Cuiabá | 6 | 1 | 4 | 1 | 0 | 0 | 0 | 0 |
 Bahia | 5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 |
 Vasco da Gama | 5 | 2 | 1 | 2 | 0 | 0 | 0 | 0 |
 Grêmio | 5 | 2 | 2 | 1 | 0 | 0 | 0 | 0 |
 São Paulo | 5 | 3 | 1 | 1 | 0 | 0 | 0 | 0 |
 Avaí | 5 | 2 | 1 | 2 | 0 | 0 | 0 | 0 |
 Atlético GO | 5 | 0 | 3 | 2 | 0 | 0 | 0 | 0 |
 Ceará | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 0 |
 Vitória | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 Coritiba | 4 | 1 | 1 | 2 | 0 | 0 | 0 | 0 |
William Klaus's 8 outings in the 2026 Serie B (562 minutes) produced no goals and no assists. That season graded out at an average match rating of 6.48.
His league record spans 9 seasons (2017–2026) across 8 clubs. His best-rated season remains 2017 (7.36, Serie B); his lowest was 2026 (6.48). Averaged over his last two rated seasons, he sits 0.26 below his earlier career level.
