K. Sierhuis · career
Kaj Sierhuis
Center Forward · Fortuna Sittard · season-by-season, by competition, and every match.
Career report
Sierhuis is operating at his career peak — the 2023/24 level is the level.
Peak: 2023/24Holding levelBreakout: 2023/24Streaky
The record covers 6 seasons (2020/21–2025/26) across 3 clubs, including a move abroad — 128 appearances, 29 goals and 9 assists.
His best campaign on record is 2023/24 at Fortuna Sittard — Season rating 51, 12 goals and 3 assists in 31 games. 2023/24 was the leap — Season rating up 51 points at Fortuna Sittard. Output has held steady across his last 3 full seasons (51 → 47).
A streaky profile — form has swung hard between campaigns (spread of ±20 points), so the peak and the trough are far apart.
By season
| Season | Club | Apps | G | A | Rating | Season |
|---|---|---|---|---|---|---|
| 2025/26 | Fortuna Sittard | 30 | 12 | 1 | 52 | 47 |
| 2024/25 | Fortuna Sittard | 11 | 1 | 1 | 51 | 8 |
| 2023/24 | Fortuna Sittard | 31 | 12 | 3 | 70 | 51 |
| 2022/23 | Reims | 14 | 0 | 0 | 60 | 0 |
| 2022/23 | Reims II | 1 | 0 | 0 | — | — |
| 2021/22 | Reims | 2 | 0 | 0 | 60 | 0 |
| 2021/22 | HeraclesLoan | 18 | 4 | 3 | 63 | 24 |
| 2020/21 | Reims | 24 | 0 | 1 | 66 | 4 |
| 2019/20 | Reims | 1 | 0 | 0 | — | — |
| 2019/20 | Groningen | 16 | 6 | 1 | — | — |
| 2018/19 | GroningenLoan | 19 | 4 | 0 | — | — |
| 2018/19 | Jong Ajax | 13 | 4 | 0 | — | — |
| 2018/19 | Ajax | 2 | 0 | 0 | — | — |
| 2017/18 | Ajax U19 | 4 | 2 | 0 | — | — |
| 2017/18 | Jong Ajax | 20 | 14 | 0 | — | — |
| 2016/17 | Jong Ajax | 8 | 4 | 0 | — | — |
| 2016/17 | Ajax U19 | 7 | 9 | 0 | — | — |
| 2015/16 | Ajax U19 | 6 | 1 | 0 | — | — |
International
| Side | Season | Competition | Apps | G |
|---|---|---|---|---|
| Netherlands U21 | 2021/22 | UEFA U21 Championship | 9 | 8 |
| Netherlands U19 | 2017/18 | UEFA U19 Championship | 5 | 3 |
Honours
U19 Divisie 1×3Eerste Divisie×2Eerste Divisie×2Eredivisie×2U19 Divisie 1×2
By competition
| Competition | Apps | Min | G | A | Rating |
|---|---|---|---|---|---|
| Eredivisie | 30 | 1998 | 12 | 1 | 7.0 |
| KNVB Beker | 2 | 110 | 1 | 0 | 7.6 |
Schedule · 2025/26
32 played1 injured7 not in squad· 2108 min, 13g 1a
| Date | Competition | Opponent | Res | Status | Min | G | A | Rating |
|---|---|---|---|---|---|---|---|---|
| Jan 4 | Friendlies Clubs | A FC Eindhoven | 1-2 | Not in squad | — | |||
| Jul 12 | Friendlies Clubs | H St. Truiden | 2-1 | Not in squad | — | |||
| Jul 26 | Friendlies Clubs | A SV Elversberg | 3-2 | Not in squad | — | |||
| Aug 1 | Friendlies Clubs | H Bayer Leverkusen | 1-2 | Not in squad | — | |||
| Aug 8 | Eredivisie | H GO Ahead Eagles | 2-2 | Not in squad | — | |||
| Aug 17 | Eredivisie | A NAC Breda | 1-2 | Not in squad | — | |||
| Aug 31 | Eredivisie | H NEC Nijmegen | 3-2 | Not in squad | — | |||
| Sep 14 | Eredivisie | A Telstar | 3-1 | Played | 28 | 7.2 | ||
| Sep 17 | Eredivisie | A Feyenoord | 0-2 | Played | 22 | 6.5 | ||
| Sep 20 | Eredivisie | H Utrecht | 1-0 | Played | 45 | 6.3 | ||
| Sep 26 | Eredivisie | A Twente | 2-3 | Played | 54 | 6.5 | ||
| Oct 4 | Eredivisie | H FC Volendam | 1-0 | Played | 62 | 6.2 | ||
| Oct 19 | Eredivisie | A Excelsior | 0-1 | Played | 45 | 6.7 | ||
| Oct 25 | Eredivisie | H Groningen | 1-2 | Played | 66 | 6.3 | ||
| Oct 28 | KNVB Beker | A Gemert | 1-0 | Played | 30 | 6.7 | ||
| Oct 31 | Eredivisie | A PSV Eindhoven | 2-5 | Played | 13 | 1 | 7.7 | |
| Nov 8 | Eredivisie | H Heerenveen | 2-0 | Played | 45 | 6.6 | ||
| Nov 22 | Eredivisie | A Sparta Rotterdam | 1-1 | Played | 82 | 1 | 8.2 | |
| Nov 29 | Eredivisie | H Heracles | 1-1 | Played | 67 | 6.7 | ||
| Dec 6 | Eredivisie | H Ajax | 1-3 | Played | 71 | 1 | 6.9 | |
| Dec 13 | Eredivisie | A PEC Zwolle | 0-1 | Played | 90 | 7.0 | ||
| Dec 17 | KNVB Beker | H Almere City FC | 2-3 | Played | 80 | 1 | 8.5 | |
| Dec 21 | Eredivisie | H AZ Alkmaar | 4-3 | Played | 89 | 2 | 8.3 | |
| Jan 11 | Eredivisie | A GO Ahead Eagles | 2-2 | Played | 80 | 6.3 | ||
| Jan 17 | Eredivisie | H PSV Eindhoven | 1-2 | Played | 90 | 1 | 8.0 | |
| Jan 25 | Eredivisie | A Groningen | 2-1 | Played | 84 | 1 | 7.3 | |
| Feb 1 | Eredivisie | A Heracles | 1-2 | Played | 90 | 1 | 7.7 | |
| Feb 7 | Eredivisie | H Sparta Rotterdam | 2-2 | Played | 86 | 6.6 | ||
| Feb 14 | Eredivisie | A Ajax | 1-4 | Played | 80 | 6.2 | ||
| Feb 20 | Eredivisie | H Excelsior | 2-1 | Played | 90 | 1 | 7.7 | |
| Feb 28 | Eredivisie | A NEC Nijmegen | 3-2 | Played | 85 | 7.9 | ||
| Mar 8 | Eredivisie | H Telstar | 1-4 | Played | 90 | 1 | 7.3 | |
| Mar 14 | Eredivisie | A FC Volendam | 2-1 | Inactive | — | |||
| Mar 21 | Eredivisie | H Twente | 1-2 | Played | 15 | 6.6 | ||
| Apr 4 | Eredivisie | A AZ Alkmaar | 0-2 | Played | 45 | 6.2 | ||
| Apr 12 | Eredivisie | H NAC Breda | 1-1 | Played | 69 | 7.3 | ||
| Apr 25 | Eredivisie | A Heerenveen | 1-2 | Played | 70 | 6.7 | ||
| May 3 | Eredivisie | H Feyenoord | 1-2 | Played | 77 | 1 | 7.6 | |
| May 10 | Eredivisie | H PEC Zwolle | 3-2 | Played | 89 | 1 | 1 | 7.7 |
| May 17 | Eredivisie | A Utrecht | 0-2 | Played | 79 | 6.5 |