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| Height | 198 cm |
| Weight | 92 kg |
| Age | 28 years old |
| Birth Date | 17 April 1998 |
| Country | Norway |
| Preferred Foot | - |
| Position | Defender |
| Shirt Number | 20 |
| Team |  Brentford / Tem 2021 - Haz 2028 |
Follow Kristoffer Ajer's latest matches in Premier League and other competitions. Starting XI appearances, goals, assists and card contributions are listed in detail.
| Date | Opponent | Score | Min | Gls | Ast | Y | R | Rating |
|---|---|---|---|---|---|---|---|---|
| 18 Eyl 2026 | Chelsea | 3‑0 | - | 0 | 0 | 0 | 0 | - |
| 12 Eyl 2026 | AFC Bournemouth | 2‑2 | - | 0 | 0 | 0 | 0 | - |
| 05 Eyl 2026 | Sunderland | 1‑1 | - | 0 | 0 | 0 | 0 | - |
| 30 Ağu 2026 | Leeds United | 1‑1 | - | 0 | 0 | 1 | 0 | - |
| 22 Ağu 2026 | Tottenham Hotspur | 3‑0 | - | 0 | 0 | 0 | 0 | - |
| 11 Tem 2026 | England | 1‑1 | - | 0 | 0 | 1 | 0 | - |
| 05 Tem 2026 | Brazil | 1‑2 | - | 0 | 0 | 0 | 0 | - |
| 30 Haz 2026 | Côte d'Ivoire | 1‑2 | - | 0 | 0 | 0 | 0 | - |
| 26 Haz 2026 | France | 1‑4 | - | 0 | 0 | 0 | 0 | - |
| 23 Haz 2026 | Senegal | 3‑2 | - | 0 | 0 | 0 | 0 | - |
| 16 Haz 2026 | Iraq | 1‑4 | - | 0 | 0 | 0 | 0 | - |
| 24 Mayıs 2026 | Liverpool | 1‑1 | - | 0 | 0 | 0 | 0 | - |
| 17 Mayıs 2026 | Crystal Palace | 2‑2 | - | 0 | 0 | 0 | 0 | - |
| 09 Mayıs 2026 | Manchester City | 3‑0 | - | 0 | 0 | 1 | 0 | - |
| 02 Mayıs 2026 | West Ham United | 3‑0 | - | 0 | 0 | 0 | 0 | - |
| 27 Nis 2026 | Manchester United | 2‑1 | - | 0 | 0 | 0 | 0 | - |
| 18 Nis 2026 | Fulham | 0‑0 | - | 0 | 0 | 0 | 0 | - |
| 11 Nis 2026 | Everton | 2‑2 | - | 0 | 0 | 0 | 0 | - |
| 16 Mar 2026 | Wolverhampton Wanderers | 2‑2 | - | 0 | 0 | 1 | 0 | - |
| 03 Mar 2026 | AFC Bournemouth | 0‑0 | - | 0 | 0 | 0 | 0 | - |
Detailed per-match output including goals, assists and cards is listed above.
| Season | League / Cup | Team | M | G | A |
|---|---|---|---|---|---|
| 2025/2026 | Premier League | Brentford | 0 | 0 | 0 |
| 2024/2025 | Premier League | Brentford | 0 | 0 | 0 |
| 2023/2024 | Premier League | Brentford | 0 | 0 | 0 |
| 2022/2023 | Premier League | Brentford | 0 | 0 | 0 |
| 2021/2022 | Premier League | Brentford | 0 | 0 | 0 |
| 2020/2021 | Europa League | Celtic | 0 | 0 | 0 |
| 2020/2021 | Champions League | Celtic | 0 | 0 | 0 |
| 2019/2020 | Europa League | Celtic | 0 | 0 | 0 |
| 2019/2020 | Champions League | Celtic | 0 | 0 | 0 |
| 2018/2019 | Europa League | Celtic | 0 | 0 | 0 |
| 2018/2019 | Champions League | Celtic | 0 | 0 | 0 |
| 2017/2018 | Europa League | Celtic | 0 | 0 | 0 |
| 2017/2018 | Champions League | Celtic | 0 | 0 | 0 |
| 2016/2017 | Champions League | Celtic | 0 | 0 | 0 |
Season-level statistics highlight how the player performs across league and cup competitions.
These numbers reveal season-by-season form, tournament output and overall impact over time.
| League | Team | M | G | A | Y | R | Starts |
|---|---|---|---|---|---|---|---|
| Premier League | Brentford | 5 | 0 | 0 | 1 | 0 | 5 |
| Total | 5 | 0 | 0 | 1 | 0 | 5 | |
| League | Team | M | G | A | Y | R | Starts |
|---|---|---|---|---|---|---|---|
| FIFA World Cup | Norway | 6 | 0 | 0 | 1 | 0 | 6 |
| Total | 6 | 0 | 0 | 1 | 0 | 6 | |
| League | Team | M | G | A | Y | R | Starts |
|---|---|---|---|---|---|---|---|
| Premier League | Brentford | 36 | 0 | 8 | 4 | 0 | 20 |
| Total | 36 | 0 | 8 | 4 | 0 | 20 | |
This section summarizes season-by-season output, including appearances, minutes and first XI starts.
| League | Seasons | M | G | A | Y | R | Starts |
|---|---|---|---|---|---|---|---|
| Premier League | 2 | 41 | 0 | 8 | 5 | 0 | 25 |
| FIFA World Cup | 1 | 6 | 0 | 0 | 1 | 0 | 6 |
| Total | 47 | 0 | 8 | 6 | 0 | 31 |
League totals by season and competition are listed above for quick performance tracking.
| Teams | Brentford, Norway | ||||||||||||||||||||||||
| National Team |
2026
|
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Kristoffer Ajer has played for multiple clubs throughout his career. Brentford, Norway and has made a total of 47 official appearances. Notably, his consistency during the Brentford period has stood out in his career. Kristoffer Ajer, also brings valuable international-team experience.