| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| — | Eerste Divisie | 1 | 82 | 0 | 0 | — | 6.91 |
| 2021/2022 | Eerste Divisie | 1 | 90 | 0 | 2 | 2 | 8.16 |
| 2022/2023 | Eerste Divisie | 5 | 311 | 0 | 1 | 0.29 | 6.97 |
| 2023/2024 | Eerste Divisie | 22 | 1604 | 1 | 5 | 0.34 | 7.1 |
| 2024/2025 | Eerste Divisie | 4 | 235 | 0 | 1 | 0.38 | 6.9 |
| 2025/2026 | Eerste Divisie | 22 | 1475 | 1 | 3 | 0.24 | 6.82 |
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 2026-08-19
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 FC Eindhoven | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 De Graafschap | 4 | 2 | 0 | 2 | 0 | 0 | 1 | 0 |
 MVV Maastricht | 4 | 2 | 2 | 0 | 0 | 0 | 0 | 0 |
 FC Emmen | 4 | 2 | 2 | 0 | 2 | 1 | 0 | 0 |
 FC Dordrecht | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 ADO Den Haag | 3 | 1 | 0 | 2 | 0 | 1 | 0 | 0 |
 VVV-Venlo | 3 | 0 | 2 | 1 | 0 | 1 | 0 | 0 |
 FC Volendam | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Jong FC Utrecht | 3 | 2 | 1 | 0 | 0 | 1 | 0 | 0 |
 NAC Breda | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Willem II | 2 | 0 | 1 | 1 | 0 | 1 | 0 | 0 |
 Almere City | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 SC Cambuur | 2 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
 Telstar | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 TOP Oss | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 FC Den Bosch | 2 | 0 | 2 | 0 | 0 | 1 | 1 | 0 |
 Helmond Sport | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Jong Ajax | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 |
 Jong AZ | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 West Ham United U21 | 2 | 2 | 0 | 0 | 0 | 2 | 0 | 0 |
Koen Jansen's 2025/2026 Eerste Divisie season produced 1 goal and 3 assists across 22 appearances (1,475 minutes) — 0.24 goal involvements per 90. Per-match rating over the season: 6.82.
His ratings range from 6.82 (2025/2026) up to 7.1 in 2023/2024, Eerste Divisie.
