M. Willemsen · career
Maas Willemsen
Center Back · Heerenveen · season-by-season, by competition, and every match.
Career report
A career still climbing — Willemsen is at his peak right now, and the curve hasn't flattened.
Peak: 2025/26Trending upBreakout: 2024/25Stepped up 2025/26
The record covers 4 seasons (2022/23–2025/26) across 2 clubs — 101 appearances with 5 goal contributions from defence.
His best campaign on record is 2025/26 at Heerenveen — Season rating 22, 1 goal and 0 assists in 31 games. 2024/25 was the leap — Season rating up 16 points at De Graafschap. Form is on a climb — up 18 Season points across his last 3 full seasons.
Made the jump to a higher division in 2025/26 (Eredivisie) and kept playing — 31 games that season.
By season
| Season | Club | Apps | G | A | Rating | Season |
|---|---|---|---|---|---|---|
| 2025/26 | Heerenveen | 31 | 1 | 0 | 71 | 22 |
| 2024/25 | Heerenveen | 1 | 0 | 0 | — | — |
| 2024/25 | De Graafschap | 36 | 1 | 2 | 54 | 20 |
| 2023/24 | De Graafschap | 22 | 1 | 0 | 51 | 4 |
| 2022/23 | De Graafschap | 12 | 0 | 0 | 45 | 0 |
By competition
| Competition | Apps | Min | G | A | Rating |
|---|---|---|---|---|---|
| Eredivisie | 31 | 2668 | 1 | 0 | 6.8 |
| KNVB Beker | 4 | 355 | 0 | 0 | 6.7 |
Schedule · 2025/26
35 played4 unused sub6 not in squad· 3023 min, 1g 0a
| Date | Competition | Opponent | Res | Status | Min | G | A | Rating |
|---|---|---|---|---|---|---|---|---|
| Jan 6 | Friendlies Clubs | A SC Paderborn 07 | 1-1 | Not in squad | — | |||
| Jul 3 | Friendlies Clubs | H Almere City FC | 4-5 | Not in squad | — | |||
| Jul 11 | Friendlies Clubs | H Telstar | 1-1 | Not in squad | — | |||
| Jul 26 | Friendlies Clubs | A QPR | 2-2 | Not in squad | — | |||
| Aug 2 | Friendlies Clubs | H Olympiakos Piraeus | 1-1 | Not in squad | — | |||
| Aug 9 | Eredivisie | H FC Volendam | 1-1 | Unused sub | 0 | — | ||
| Aug 16 | Eredivisie | A Groningen | 1-2 | Unused sub | 0 | — | ||
| Aug 24 | Eredivisie | H Twente | 1-2 | Unused sub | 0 | — | ||
| Aug 30 | Eredivisie | H GO Ahead Eagles | 2-2 | Unused sub | 0 | — | ||
| Sep 13 | Eredivisie | A Feyenoord | 0-1 | Played | 18 | 6.6 | ||
| Sep 21 | Eredivisie | H NEC Nijmegen | 3-2 | Played | 90 | 6.2 | ||
| Sep 28 | Eredivisie | A Utrecht | 2-2 | Played | 90 | 7.3 | ||
| Oct 4 | Eredivisie | H Excelsior | 2-1 | Played | 90 | 8.5 | ||
| Oct 9 | Friendlies Clubs | H PEC Zwolle | 4-1 | Not in squad | — | |||
| Oct 19 | Eredivisie | A Telstar | 3-2 | Played | 90 | 6.2 | ||
| Oct 24 | Eredivisie | H NAC Breda | 3-3 | Played | 90 | 1 | 7.7 | |
| Oct 28 | KNVB Beker | A VVV Venlo | 3-0 | Played | 85 | 7.6 | ||
| Nov 1 | Eredivisie | A Ajax | 1-1 | Played | 90 | 6.5 | ||
| Nov 8 | Eredivisie | A Fortuna Sittard | 0-2 | Played | 90 | 6.3 | ||
| Nov 23 | Eredivisie | H AZ Alkmaar | 3-1 | Played | 90 | 7.2 | ||
| Nov 28 | Eredivisie | A PEC Zwolle | 1-2 | Played | 80 | 6.0 | ||
| Dec 6 | Eredivisie | H PSV Eindhoven | 0-2 | Played | 90 | 6.3 | ||
| Dec 14 | Eredivisie | A Sparta Rotterdam | 3-0 | Played | 90 | 6.9 | ||
| Dec 17 | KNVB Beker | A Feyenoord | 3-2 | Played | 90 | 7.0 | ||
| Dec 20 | Eredivisie | A Heracles | 3-0 | Played | 90 | 7.5 | ||
| Jan 11 | Eredivisie | H Feyenoord | 2-2 | Played | 90 | 7.2 | ||
| Jan 15 | KNVB Beker | H Waalwijk | 3-1 | Played | 90 | 7.0 | ||
| Jan 18 | Eredivisie | H Groningen | 0-2 | Played | 95 | 6.7 | ||
| Feb 1 | Eredivisie | H Utrecht | 1-1 | Played | 90 | 7.9 | ||
| Feb 4 | KNVB Beker | A PSV Eindhoven | 1-4 | Played | 90 | 5.3 | ||
| Feb 7 | Eredivisie | A Twente | 0-5 | Played | 90 | 5.6 | ||
| Feb 11 | Eredivisie | A GO Ahead Eagles | 3-1 | Played | 90 | 6.6 | ||
| Feb 15 | Eredivisie | H PEC Zwolle | 4-2 | Played | 90 | 6.6 | ||
| Feb 21 | Eredivisie | A PSV Eindhoven | 1-3 | Played | 90 | 6.5 | ||
| Feb 28 | Eredivisie | H Sparta Rotterdam | 2-1 | Played | 90 | 7.0 | ||
| Mar 7 | Eredivisie | A Excelsior | 2-1 | Played | 90 | 6.9 | ||
| Mar 14 | Eredivisie | H Telstar | 3-0 | Played | 81 | 7.2 | ||
| Mar 22 | Eredivisie | A NEC Nijmegen | 2-2 | Played | 77 | 6.5 | ||
| Apr 5 | Eredivisie | H Heracles | 4-1 | Played | 77 | 7.2 | ||
| Apr 12 | Eredivisie | A AZ Alkmaar | 0-3 | Played | 80 | 6.2 | ||
| Apr 25 | Eredivisie | H Fortuna Sittard | 2-1 | Played | 90 | 7.0 | ||
| May 3 | Eredivisie | A FC Volendam | 2-0 | Played | 90 | 7.3 | ||
| May 11 | Eredivisie | A NAC Breda | 0-2 | Played | 90 | 6.6 | ||
| May 17 | Eredivisie | H Ajax | 0-0 | Played | 90 | 7.2 | ||
| May 21 | Eredivisie | A Utrecht | 2-3 | Played | 90 | 6.9 |