Brentford FC· Premier LeagueMit Celtic Glasgow gewann Ajer dreimal die schottische Meisterschaft, den schottischen Pokal und den schottischen Ligapokal. Zudem holte er einmal den Premier League Cup.
Kristoffer Ajer ist ein norwegischer Innenverteidiger, der derzeit für den Premier-League-Klub Brentford FC spielt. Geboren in Rælingen, begann er seine Karriere bei Start Kristiansand, bevor er zu Celtic Glasgow wechselte, wo er mehrere nationale Titel gewann. 2021 wechselte er zu Brentford, wo er sich in der englischen Premier League etablierte.
Ajer ist ein körperlich starker und zweikampfstarker Innenverteidiger, der durch seine Größe und Kopfballstärke in der Luft dominiert. Er ist zudem ballsicher und kann das Spiel von hinten aufbauen, was ihn zu einem modernen Verteidiger macht. Seine Schnelligkeit und Wendigkeit sind jedoch nicht seine größten Stärken.
| Season | Comp | Apps | G | A | YC | RC | Min |
|---|---|---|---|---|---|---|---|
| 25/26 | Premier League | 27 | 0 | 1 | 4 | 0 | 1809 |
| 25/26 | International Friendlies | 5 | 0 | 0 | 1 | 0 | 390 |
| 25/26 | FA Cup | 1 | 0 | 0 | 0 | 0 | 97 |
| 25/26 | EFL Cup | 3 | 0 | 1 | 0 | 0 | 232 |
| 24/25 | UEFA Nations League B | 2 | 0 | 0 | 0 | 0 | 180 |
| 24/25 | Premier League | 24 | 0 | 0 | 5 | 0 | 1443 |
| 24/25 | FA Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 24/25 | EFL Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 23/24 | Premier League | 28 | 2 | 1 | 5 | 0 | 1833 |
| 23/24 | International Friendlies | 6 | 1 | 0 | 1 | 0 | 540 |
| 23/24 | FA Cup | 1 | 0 | 0 | 0 | 0 | 62 |
| 23/24 | EFL Cup | 2 | 0 | 0 | 0 | 0 | 98 |
| 22/23 | UEFA Nations League B | 1 | 0 | 0 | 0 | 0 | 32 |
| 22/23 | Premier League | 9 | 0 | 0 | 0 | 0 | 766 |
| 22/23 | International Friendlies | 0 | 0 | 0 | 0 | 0 | 0 |
| 22/23 | FA Cup | 1 | 0 | 0 | 0 | 0 | 80 |
| 22/23 | European Qualifiers | 4 | 0 | 0 | 1 | 0 | 283 |
| 22/23 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 22/23 | Premier League Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 21/22 | Premier League | 24 | 1 | 2 | 5 | 0 | 1987 |
| 21/22 | International Friendlies | 1 | 0 | 0 | 0 | 0 | 90 |
| 21/22 | FA Cup | 2 | 0 | 0 | 0 | 0 | 152 |
| 21/22 | UEFA Champions League Qualifying | 0 | 0 | 0 | 0 | 0 | 0 |
| 21/22 | EFL Cup | 2 | 0 | 0 | 0 | 0 | 135 |
| 2025 | World Cup Qualifiers (Europe) | 8 | 1 | 0 | 1 | 0 | 703 |
| 2021 | World Cup Qualifiers (Europe) | 4 | 0 | 0 | 0 | 0 | 360 |
| 2016 | NM-Cup | 3 | 1 | 1 | 0 | 0 | 270 |
| 2016 | Eliteserien | 11 | 0 | 1 | 4 | 0 | 934 |
| 2015 | Relegation Eliteserien | 2 | 0 | 0 | 0 | 0 | 180 |
| 2015 | NM-Cup | 2 | 4 | 0 | 1 | 0 | 135 |
| 2015 | Eliteserien | 30 | 8 | 4 | 2 | 0 | 2582 |
| 2014 | NM-Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 2014 | Eliteserien | 13 | 1 | 1 | 1 | 0 | 605 |
| 20/21 | UEFA Nations League B | 4 | 0 | 0 | 0 | 0 | 360 |
| 20/21 | Scottish FA Cup | 2 | 0 | 0 | 0 | 0 | 180 |
| 20/21 | Scottish Premiership Top Six Split | 4 | 1 | 2 | 0 | 0 | 360 |
| 20/21 | Scottish League Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 20/21 | Scottish Premiership | 31 | 1 | 1 | 1 | 0 | 2683 |
| 20/21 | International Friendlies | 2 | 0 | 0 | 0 | 0 | 160 |
| 20/21 | UEFA Europa League Qualifying | 2 | 0 | 0 | 0 | 0 | 180 |
| 20/21 | UEFA Europa League | 5 | 0 | 1 | 0 | 0 | 410 |
| 20/21 | UEFA Champions League Qualifying | 1 | 0 | 0 | 0 | 0 | 90 |
| 19/20 | Scottish FA Cup | 3 | 0 | 0 | 1 | 0 | 300 |
| 19/20 | Scottish League Cup | 4 | 0 | 0 | 1 | 0 | 346 |
| 19/20 | Scottish Premiership | 28 | 3 | 2 | 3 | 0 | 2508 |
| 19/20 | European Qualifiers Play-offs | 1 | 0 | 0 | 0 | 0 | 120 |
| 19/20 | UEFA Europa League Qualifying | 2 | 0 | 0 | 0 | 0 | 105 |
| 19/20 | UEFA Europa League | 8 | 0 | 0 | 2 | 0 | 675 |
| 19/20 | UEFA Champions League Qualifying | 5 | 1 | 0 | 1 | 0 | 450 |
| 18/19 | UEFA Nations League C | 2 | 0 | 0 | 0 | 0 | 180 |
| 18/19 | Scottish FA Cup | 4 | 0 | 0 | 0 | 0 | 315 |
| 18/19 | Scottish Premiership Top Six Split | 5 | 0 | 0 | 3 | 0 | 450 |
| 18/19 | Scottish League Cup | 3 | 0 | 0 | 0 | 0 | 203 |
| 18/19 | Scottish Premiership | 23 | 0 | 0 | 3 | 1 | 1715 |
| 18/19 | European Qualifiers | 8 | 0 | 0 | 1 | 0 | 720 |
| 18/19 | UEFA Europa League Qualifying | 2 | 1 | 0 | 0 | 0 | 180 |
| 18/19 | UEFA Europa League | 3 | 0 | 0 | 0 | 0 | 160 |
| 18/19 | UEFA Champions League Qualifying | 5 | 0 | 1 | 2 | 0 | 450 |
| 17/18 | UEFA European Under-21 Championship Qualifying | 5 | 1 | 0 | 2 | 0 | 450 |
| 17/18 | Scottish FA Cup | 5 | 0 | 0 | 0 | 0 | 436 |
| 17/18 | Scottish Premiership Top Six Split | 5 | 0 | 0 | 1 | 0 | 450 |
| 17/18 | Scottish League Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 17/18 | Scottish Premiership | 19 | 0 | 0 | 2 | 0 | 1575 |
| 17/18 | International Friendlies | 4 | 0 | 0 | 1 | 0 | 360 |
| 17/18 | UEFA Europa League | 2 | 0 | 0 | 0 | 0 | 180 |
| 17/18 | UEFA Champions League Qualifying | 2 | 0 | 0 | 1 | 0 | 180 |
| 17/18 | UEFA Champions League | 0 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | UEFA EURO U19 Championship Qualifiers | 6 | 3 | 0 | 0 | 0 | 513 |
| 16/17 | Scottish Challenge Cup | 2 | 0 | 0 | 0 | 0 | 180 |
| 16/17 | Scottish FA Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 16/17 | Scottish League Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | Scottish Premiership | 16 | 0 | 0 | 2 | 0 | 1440 |
| 16/17 | Premier League International Cup U21 | 1 | 1 | 0 | 0 | 0 | 90 |
| 16/17 | International Friendlies | 1 | 1 | 0 | 1 | 0 | 83 |
| 16/17 | UEFA Champions League Qualifying | 1 | 0 | 0 | 0 | 0 | 30 |
| 16/17 | UEFA Champions League | 0 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | UEFA Youth League | 5 | 0 | 1 | 2 | 0 | 450 |
| 15/16 | International Friendlies | 4 | 1 | 0 | 0 | 0 | 295 |
| 14/15 | UEFA European Under-17 Championship qualification | 2 | 1 | 0 | 2 | 0 | 160 |
| 14/15 | International Friendlies | 4 | 0 | 0 | 1 | 0 | 250 |
| 13/14 | International Friendlies | 3 | 0 | 0 | 0 | 0 | 200 |
| Date | Opponent | H/A | Result | Competition | Min | G | A | YC |
|---|---|---|---|---|---|---|---|---|
| 2026-06-07 | Norway | ✈ | 1:1 | International Friendlies | 72 | 0 | 0 | 0 |
| 2026-06-01 | Sweden | 🏠 | 3:1 | International Friendlies | 63 | 0 | 0 | 0 |
| 2026-03-31 | Switzerland | 🏠 | 0:0 | International Friendlies | 75 | 0 | 0 | 0 |
| 2026-03-27 | Norway | ✈ | 2:1 | International Friendlies | 90 | 0 | 0 | 1 |
| 2025-11-16 | Norway | ✈ | 1:4 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-11-13 | Estonia | 🏠 | 4:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-10-14 | New Zealand | 🏠 | 1:1 | International Friendlies | - | 0 | 0 | 0 |
| 2025-10-11 | Israel | 🏠 | 5:0 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-09-09 | Moldova | 🏠 | 11:1 | World Cup Qualifiers (Europe) | 73 | 0 | 0 | 0 |
| 2025-09-04 | Finland | 🏠 | 1:0 | International Friendlies | 90 | 0 | 0 | 0 |
| 2025-06-09 | Norway | ✈ | 0:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-06-06 | Italy | 🏠 | 3:0 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-03-25 | Norway | ✈ | 2:4 | World Cup Qualifiers (Europe) | 90 | 1 | 0 | 0 |
| 2025-03-22 | Norway | ✈ | 0:5 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 1 |
| 2024-11-17 | Kazakhstan | 🏠 | 5:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-11-14 | Norway | ✈ | 1:4 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-10-13 | Norway | ✈ | 5:1 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2024-10-10 | Slovenia | 🏠 | 3:0 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2024-09-09 | Austria | 🏠 | 2:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-09-06 | Norway | ✈ | 0:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-06-08 | Norway | ✈ | 3:1 | International Friendlies | 90 | 0 | 0 | 0 |
| 2024-06-05 | Kosovo | 🏠 | 3:0 | International Friendlies | 90 | 0 | 0 | 1 |
| 2024-03-26 | Slovakia | 🏠 | 1:1 | International Friendlies | 90 | 0 | 0 | 0 |
| 2024-03-22 | Czechia | 🏠 | 1:2 | International Friendlies | 90 | 0 | 0 | 0 |
| 2023-11-19 | Norway | ✈ | 3:3 | European Qualifiers | 90 | 0 | 0 | 1 |
| 2023-11-16 | Faroe Islands | 🏠 | 2:0 | International Friendlies | 90 | 0 | 0 | 0 |
| 2023-10-15 | Spain | 🏠 | 0:1 | European Qualifiers | 13 | 0 | 0 | 0 |
| 2023-10-12 | Norway | ✈ | 0:4 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2023-09-12 | Georgia | 🏠 | 2:1 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2023-09-07 | Jordan | 🏠 | 6:0 | International Friendlies | 90 | 1 | 0 | 0 |
| 2023-06-20 | Cyprus | 🏠 | 3:1 | European Qualifiers | - | 0 | 0 | 0 |
| 2023-06-17 | Scotland | 🏠 | 1:2 | European Qualifiers | - | 0 | 0 | 0 |
| 2023-03-28 | Norway | ✈ | 1:1 | European Qualifiers | - | 0 | 0 | 0 |
| 2023-03-25 | Norway | ✈ | 3:0 | European Qualifiers | - | 0 | 0 | 0 |
| 2022-11-20 | Finland | 🏠 | 1:1 | International Friendlies | - | 0 | 0 | 0 |
| 2022-11-17 | Norway | ✈ | 1:2 | International Friendlies | - | 0 | 0 | 0 |
| 2022-09-27 | Serbia | 🏠 | 0:2 | UEFA Nations League B | 32 | 0 | 0 | 0 |
| 2022-09-24 | Norway | ✈ | 2:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-12 | Sweden | 🏠 | 3:2 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-09 | Slovenia | 🏠 | 0:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-05 | Norway | ✈ | 1:2 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-02 | Norway | ✈ | 0:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-03-29 | Armenia | 🏠 | 9:0 | International Friendlies | 90 | 0 | 0 | 0 |
| 2022-03-25 | Slovakia | 🏠 | 2:0 | International Friendlies | - | 0 | 0 | 0 |
| 2021-11-16 | Norway | ✈ | 2:0 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-11-13 | Latvia | 🏠 | 0:0 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-10-11 | Montenegro | 🏠 | 2:0 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-10-08 | Norway | ✈ | 1:1 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-09-07 | Gibraltar | 🏠 | 5:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-09-04 | Norway | ✈ | 0:2 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-09-01 | Netherlands | 🏠 | 1:1 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-06-06 | Norway | ✈ | 2:1 | International Friendlies | 88 | 0 | 0 | 0 |
| 2021-06-02 | Norway | ✈ | 0:1 | International Friendlies | 72 | 0 | 0 | 0 |
| 2021-03-30 | Norway | ✈ | 0:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-03-27 | Norway | ✈ | 3:0 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-03-24 | Norway | ✈ | 0:3 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2020-11-18 | Norway | ✈ | 1:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2020-11-15 | Norway | ✈ | 3:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2020-10-14 | Northern Ireland | 🏠 | 1:0 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2020-10-11 | Romania | 🏠 | 4:0 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2020-10-08 | Serbia | 🏠 | 1:2 | European Qualifiers Play-offs | 120 | 0 | 0 | 0 |
| 2020-09-07 | Norway | ✈ | 1:5 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2020-09-04 | Austria | 🏠 | 1:2 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2019-11-18 | Norway | ✈ | 1:2 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-11-15 | Faroe Islands | 🏠 | 4:0 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-10-15 | Norway | ✈ | 1:1 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-10-12 | Spain | 🏠 | 1:1 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-09-08 | Norway | ✈ | 1:1 | European Qualifiers | - | 0 | 0 | 0 |
| 2019-09-05 | Malta | 🏠 | 2:0 | European Qualifiers | - | 0 | 0 | 0 |
| 2019-06-10 | Norway | ✈ | 0:2 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-06-07 | Romania | 🏠 | 2:2 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-03-26 | Sweden | 🏠 | 3:3 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-03-23 | Norway | ✈ | 2:1 | European Qualifiers | 90 | 0 | 0 | 1 |
| 2018-11-19 | Norway | ✈ | 0:2 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-11-16 | Norway | ✈ | 1:1 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-10-16 | Bulgaria | 🏠 | 1:0 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-10-13 | Slovenia | 🏠 | 1:0 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-09-09 | Norway | ✈ | 1:0 | UEFA Nations League C | 90 | 0 | 0 | 0 |
| 2018-09-06 | Cyprus | 🏠 | 2:0 | UEFA Nations League C | 90 | 0 | 0 | 0 |
| 2018-06-06 | Panama | 🏠 | 1:0 | International Friendlies | 90 | 0 | 0 | 1 |
| 2018-06-02 | Norway | ✈ | 2:3 | International Friendlies | 90 | 0 | 0 | 0 |
| 2018-03-26 | Norway | ✈ | 0:1 | International Friendlies | 90 | 0 | 0 | 0 |
| 2018-03-23 | Australia | 🏠 | 4:1 | International Friendlies | 90 | 0 | 0 | 0 |