Attacking · Groningen · season-by-season, by competition, and every match.
A career still climbing — Werff is at his peak right now, and the curve hasn't flattened.
The record covers 2 seasons (2024/25–2025/26) across 1 club — 53 appearances, 3 goals and 2 assists.
His best campaign on record is 2025/26 at Groningen — Season rating 34, 3 goals and 2 assists in 35 games. 2025/26 was the leap — Season rating up 34 points at Groningen. Form is on a climb — up 34 Season points across his last 2 full seasons.
A streaky profile — form has swung hard between campaigns (spread of ±17 points), so the peak and the trough are far apart.
| Competition | Apps | Min | G | A | Rating |
|---|---|---|---|---|---|
| Eredivisie | 35 | 2135 | 3 | 2 | 6.8 |
| KNVB Beker | 1 | 71 | 0 | 0 | 6.2 |
| Date | Competition | Opponent | Res | Status | Min | G | A | Rating |
|---|---|---|---|---|---|---|---|---|
| Jan 5 | Friendlies Clubs | A SV Elversberg | 1-2 | Not in squad | — | |||
| Mar 19 | Friendlies Clubs | A FC Schalke 04 | 0-1 | Not in squad | — | |||
| Jul 9 | Friendlies Clubs | H Dender | 2-0 | Not in squad | — | |||
| Jul 19 | Friendlies Clubs | H NEC Nijmegen | 1-2 | Not in squad | — | |||
| Jul 26 | Friendlies Clubs | H Beerschot VA | 3-1 | Not in squad | — | |||
| Aug 10 | Eredivisie | A AZ Alkmaar | 1-4 | Played | 45 | 6.7 | ||
| Aug 16 | Eredivisie | H Heerenveen | 2-1 | Played | 13 | 6.6 | ||
| Aug 23 | Eredivisie | A PSV Eindhoven | 2-4 | Played | 9 | 6.6 | ||
| Aug 29 | Eredivisie | H Heracles | 4-0 | Played | 24 | 1 | 7.3 | |
| Sep 14 | Eredivisie | A Utrecht | 1-0 | Played | 78 | 6.5 | ||
| Sep 20 | Eredivisie | H Telstar | 2-0 | Played | 65 | 7.5 | ||
| Sep 28 | Eredivisie | H Feyenoord | 0-1 | Played | 69 | 7.0 | ||
| Oct 3 | Eredivisie | A NAC Breda | 2-1 | Played | 73 | 7.2 | ||
| Oct 19 | Eredivisie | H Sparta Rotterdam | 0-2 | Played | 89 | 6.9 | ||
| Oct 25 | Eredivisie | A Fortuna Sittard | 2-1 | Played | 80 | 1 | 7.3 | |
| Oct 30 | KNVB Beker | A Sparta Rotterdam | 2-5 | Played | 71 | 6.2 | ||
| Nov 2 | Eredivisie | H Twente | 1-1 | Played | 71 | 7.7 | ||
| Nov 9 | Eredivisie | A NEC Nijmegen | 0-2 | Played | 58 | 6.2 | ||
| Nov 23 | Eredivisie | H PEC Zwolle | 2-2 | Played | 65 | 6.6 | ||
| Dec 2 | Eredivisie | A Ajax | 0-2 | Played | 20 | 6.9 | ||
| Dec 5 | Eredivisie | A Excelsior | 2-0 | Played | 18 | 6.7 | ||
| Dec 13 | Eredivisie | H FC Volendam | 3-0 | Played | 21 | 6.9 | ||
| Dec 21 | Eredivisie | A GO Ahead Eagles | 1-1 | Played | 10 | 6.7 | ||
| Jan 10 | Eredivisie | H NAC Breda | 0-0 | Played | 18 | 6.9 | ||
| Jan 18 | Eredivisie | A Heerenveen | 2-0 | Played | 95 | 6.9 | ||
| Jan 25 | Eredivisie | H Fortuna Sittard | 1-2 | Played | 80 | 7.2 | ||
| Jan 31 | Eredivisie | A Sparta Rotterdam | 0-2 | Played | 86 | 6.9 | ||
| Feb 8 | Eredivisie | H PSV Eindhoven | 1-2 | Played | 87 | 6.3 | ||
| Feb 14 | Eredivisie | H Utrecht | 1-2 | Played | 79 | 7.2 | ||
| Feb 22 | Eredivisie | A Twente | 1-2 | Played | 66 | 5.9 | ||
| Mar 1 | Eredivisie | A FC Volendam | 2-3 | Played | 90 | 6.9 | ||
| Mar 7 | Eredivisie | H Ajax | 3-1 | Played | 90 | 6.2 | ||
| Mar 13 | Eredivisie | A PEC Zwolle | 1-1 | Played | 80 | 6.3 | ||
| Mar 22 | Eredivisie | H AZ Alkmaar | 3-0 | Played | 90 | 1 | 6.6 | |
| Apr 4 | Eredivisie | A Telstar | 2-0 | Played | 70 | 7.3 | ||
| Apr 11 | Eredivisie | H GO Ahead Eagles | 0-0 | Played | 74 | 7.2 | ||
| Apr 25 | Eredivisie | A Feyenoord | 1-3 | Played | 69 | 6.0 | ||
| May 2 | Eredivisie | H Excelsior | 2-3 | Played | 56 | 1 | 7.0 | |
| May 10 | Eredivisie | H NEC Nijmegen | 2-1 | Played | 69 | 7.2 | ||
| May 17 | Eredivisie | A Heracles | 2-1 | Played | 61 | 1 | 7.5 | |
| May 21 | Eredivisie | A Ajax | 0-2 | Played | 67 | 6.3 |