Kristoffer Ajer
Career snapshot
Career highs
Born the same day
Shares 1998-04-17 · 6 players total
| Full name | Kristoffer Ajer |
|---|---|
| Name in home country | Kristoffer Vassbakk Köpp Ajer |
| Date of birth | 1998-04-17 (28 yrs) |
| Place of birth | Rælingen, Norway |
| Citizenship | Norway |
| Position | Defender - Centre-Back (main: Defender) |
| Foot | right |
| Height | 198.00 m |
| Current club | Brentford FC |
| Joined | 2021-07-21 |
| Contract expires | 2028-06-30 |
| Agent | Wasserman |
| Club | Seasons | First | Last | Matches | Goals | Assists | Minutes |
|---|---|---|---|---|---|---|---|
| Brentford FC | 5 | 21/22 | 25/26 | 96 | 3 | 4 | 2,904 |
| FC Brentford U21 | 1 | 22/23 | 22/23 | 1 | 0 | 0 | 0 |
| IK Start | 3 | 2014 | 2016 | 61 | 14 | 7 | 1,232 |
| Celtic FC | 5 | 16/17 | 20/21 | 176 | 7 | 7 | 4,509 |
| Kilmarnock FC | 1 | 16/17 | 16/17 | 17 | 0 | 0 | 0 |
| Celtic Glasgow U20 | 1 | 16/17 | 16/17 | 2 | 0 | 0 | 0 |
| Celtic FC UEFA U19 | 1 | 16/17 | 16/17 | 5 | 0 | 1 | 0 |
Career trajectory — goals, assists & market value
Goals by season
Assists by season
| Season | Competition | Club | Matches | Goals | Assists | YC | RC | Minutes |
|---|---|---|---|---|---|---|---|---|
| 25/26 | EFL Cup | Brentford FC | 1 | 0 | 1 | 0 | 0 | 0 |
| 25/26 | Premier League | Brentford FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 24/25 | EFL Cup | Brentford FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 24/25 | Premier League | Brentford FC | 24 | 0 | 0 | 5 | 0 | 0 |
| 23/24 | EFL Cup | Brentford FC | 2 | 0 | 0 | 0 | 0 | 0 |
| 23/24 | FA Cup | Brentford FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 23/24 | Premier League | Brentford FC | 28 | 2 | 1 | 5 | 0 | 917 |
| 22/23 | FA Cup | Brentford FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 22/23 | Premier League | Brentford FC | 9 | 0 | 0 | 0 | 0 | 0 |
| 22/23 | Premier League Cup | FC Brentford U21 | 1 | 0 | 0 | 0 | 0 | 0 |
| 21/22 | EFL Cup | Brentford FC | 2 | 0 | 0 | 0 | 0 | 0 |
| 21/22 | FA Cup | Brentford FC | 2 | 0 | 0 | 0 | 0 | 0 |
| 21/22 | Premier League | Brentford FC | 24 | 1 | 2 | 5 | 0 | 1,987 |
| 2016 | NM-Cup | IK Start | 3 | 1 | 1 | 0 | 0 | 270 |
| 2016 | Tippeligaen | IK Start | 11 | 0 | 1 | 4 | 0 | 0 |
| 2015 | NM-Cup | IK Start | 2 | 4 | 0 | 1 | 0 | 34 |
| 2015 | Relegation Eliteserien | IK Start | 2 | 0 | 0 | 0 | 0 | 0 |
| 2015 | Tippeligaen | IK Start | 30 | 8 | 4 | 2 | 0 | 323 |
| 2014 | NM-Cup | IK Start | 0 | 0 | 0 | 0 | 0 | 0 |
| 2014 | Tippeligaen | IK Start | 13 | 1 | 1 | 1 | 0 | 605 |
| 20/21 | Betfred Cup | Celtic FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 20/21 | Champions League Qu. | Celtic FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 20/21 | Europa League | Celtic FC | 5 | 0 | 1 | 0 | 0 | 0 |
| 20/21 | Europa League Qualifying | Celtic FC | 2 | 0 | 0 | 0 | 0 | 0 |
| 20/21 | Premiership | Celtic FC | 31 | 1 | 1 | 1 | 0 | 2,683 |
| 20/21 | Scottish Premiership Top Six Split | Celtic FC | 4 | 1 | 2 | 0 | 0 | 360 |
| 20/21 | SFA Cup | Celtic FC | 2 | 0 | 0 | 0 | 0 | 0 |
| 19/20 | Betfred Cup | Celtic FC | 4 | 0 | 0 | 1 | 0 | 0 |
| 19/20 | Champions League Qu. | Celtic FC | 5 | 1 | 0 | 1 | 0 | 450 |
| 19/20 | Europa League | Celtic FC | 8 | 0 | 0 | 2 | 0 | 0 |
| 19/20 | Europa League Qualifying | Celtic FC | 2 | 0 | 0 | 0 | 0 | 0 |
| 19/20 | Premiership | Celtic FC | 28 | 3 | 2 | 3 | 0 | 836 |
| 19/20 | SFA Cup | Celtic FC | 3 | 0 | 0 | 1 | 0 | 0 |
| 18/19 | Betfred Cup | Celtic FC | 3 | 0 | 0 | 0 | 0 | 0 |
| 18/19 | Champions League Qu. | Celtic FC | 5 | 0 | 1 | 2 | 0 | 0 |
| 18/19 | Europa League | Celtic FC | 3 | 0 | 0 | 0 | 0 | 0 |
| 18/19 | Europa League Qualifying | Celtic FC | 2 | 1 | 0 | 0 | 0 | 180 |
| 18/19 | Premiership | Celtic FC | 23 | 0 | 0 | 3 | 1 | 0 |
| 18/19 | Scottish Premiership Top Six Split | Celtic FC | 5 | 0 | 0 | 3 | 0 | 0 |
| 18/19 | SFA Cup | Celtic FC | 4 | 0 | 0 | 0 | 0 | 0 |
| 17/18 | Betfred Cup | Celtic FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 17/18 | Champions League | Celtic FC | 0 | 0 | 0 | 0 | 0 | 0 |
| 17/18 | Champions League Qu. | Celtic FC | 2 | 0 | 0 | 1 | 0 | 0 |
| 17/18 | Europa League | Celtic FC | 2 | 0 | 0 | 0 | 0 | 0 |
| 17/18 | Premiership | Celtic FC | 19 | 0 | 0 | 2 | 0 | 0 |
| 17/18 | Scottish Premiership Top Six Split | Celtic FC | 5 | 0 | 0 | 1 | 0 | 0 |
| 17/18 | SFA Cup | Celtic FC | 5 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | Champions League Qu. | Celtic FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | Irn-Bru Cup | Celtic Glasgow U20 | 2 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | Premiership | Kilmarnock FC | 16 | 0 | 0 | 2 | 0 | 0 |
| 16/17 | SFA Cup | Kilmarnock FC | 1 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | UEFA Youth League | Celtic FC UEFA U19 | 5 | 0 | 1 | 2 | 0 | 0 |
| Season | Date | From | To | Type | Market value | Fee |
|---|---|---|---|---|---|---|
| 14/15 | 2014-07-15 | Lillestrøm Yth. | Start | Transfer | 0 | — |
| 16/17 | 2016-07-01 | Start | Celtic | Transfer | 800000 | €600k |
| 16/17 | 2017-01-20 | Celtic | Kilmarnock FC | Loan | 800000 | — |
| 16/17 | 2017-05-31 | Kilmarnock FC | Celtic | Return from loan | 800000 | — |
| 21/22 | 2021-07-21 | Celtic | Brentford | Transfer | 7000000 | €15.70m |
| Season | Injury | From | To | Days missed | Games missed |
|---|---|---|---|---|---|
| 16/17 | Knee injury | 2016-07-22 | 2016-08-01 | 11 | 1 |
| 18/19 | Virus | 2018-09-18 | 2018-09-22 | 5 | 1 |
| 18/19 | Hamstring injury | 2018-09-22 | 2018-10-27 | 36 | 9 |
| 18/19 | Eyebow fracture | 2018-11-11 | 2018-12-15 | 35 | 9 |
| 19/20 | Groin problems | 2019-08-29 | 2019-08-30 | 2 | 1 |
| 19/20 | Knee problems | 2019-08-29 | 2019-09-12 | 15 | 4 |
| 19/20 | Virus | 2020-01-25 | 2020-01-29 | 5 | 2 |
| 20/21 | Groin injury | 2020-10-29 | 2020-11-07 | 10 | 3 |
| 20/21 | Quarantine | 2021-01-09 | 2021-01-19 | 11 | 2 |
| 21/22 | Hamstring injury | 2022-07-09 | 2022-08-31 | 54 | 6 |
| 23/24 | Foot injury | 2023-12-02 | 2024-01-16 | 46 | 8 |
| 23/24 | Calf strain | 2024-04-06 | 2024-04-20 | 15 | 3 |
| 24/25 | Ankle injury | 2024-08-31 | 2024-09-14 | 15 | 4 |
| 24/25 | Foot injury | 2024-10-19 | 2024-12-07 | 50 | 11 |
| 24/25 | Ankle injury | 2024-12-21 | 2025-01-25 | 36 | 7 |
| Date | Value |
|---|---|
| Jan 1, 1970 | €18.00m |
| Jan 1, 1970 | €15.00m |
| Jan 1, 1970 | €18.00m |
| Jan 1, 1970 | €15.00m |
| Jan 1, 1970 | €18.00m |
| Jan 1, 1970 | €16.00m |
| Jan 1, 1970 | €18.00m |
| Jan 1, 1970 | €16.00m |
| Jan 1, 1970 | €17.00m |
| Jan 1, 1970 | €4.00m |
| Jan 1, 1970 | €17.00m |
| Jan 1, 1970 | €7.00m |
| Jan 1, 1970 | €4.00m |
| Jan 1, 1970 | €2.70m |
| Jan 1, 1970 | €3.00m |
| Jan 1, 1970 | €3.00m |
| Jan 1, 1970 | €2.00m |
| Jan 1, 1970 | €1.25m |
| Jan 1, 1970 | €800k |
| Jan 1, 1970 | €800k |
| Jan 1, 1970 | €800k |
| Jan 1, 1970 | €800k |
| Jan 1, 1970 | €300k |
| Team | Shirt | Matches | Goals | Debut | Age at debut | Status |
|---|---|---|---|---|---|---|
| Team #38018 | #9 | 4 | 0 | — | — | former national player |
| Team #36495 | #13 | 12 | 1 | — | — | former national player |
| Team #31919 | — | 10 | 6 | — | — | former national player |
| Team #26471 | #9 | 1 | 1 | — | — | former national player |
| Team #22515 | #7 | 5 | 1 | — | — | former national player |
| Team #16854 | — | 5 | 1 | — | — | former national player |
| Team #3440 | #3 | 45 | 2 | — | — | current national player |
| Teammate | PPG played with | Joint goals | Minutes |
|---|---|---|---|
| Christian Nørgaard | 1 | 2 | 0 |
| Gudmundur Kristjánsson | 1 | 0 | 0 |
| Mikey Johnston | 2 | 2 | 0 |
| Rolf Daniel Vikstøl | 1 | 0 | 0 |
| Christopher Jullien | 2 | 1 | 0 |
| Kieran Tierney | 2 | 0 | 0 |
| Nir Bitton | 2 | 0 | 0 |
| Greg Taylor | 2 | 0 | 0 |
| Scott Bain | 2 | 0 | 0 |
| Callum McGregor | 2 | 0 | 0 |
| Yoane Wissa | 1 | 0 | 0 |
| Leigh Griffiths | 2 | 1 | 0 |
| Mohamed Elyounoussi | 2 | 1 | 0 |
| Bryan Mbeumo | 1 | 1 | 0 |
| Olivier Ntcham | 2 | 1 | 0 |
| Ryan Christie | 2 | 2 | 0 |
| Odsonne Édouard | 2 | 1 | 0 |
| James Forrest | 2 | 3 | 0 |
Single-season peaks across competitions in this player's career.
Top goalscoring seasons
| Season | Competition | Club | Goals | Matches |
|---|---|---|---|---|
| 2015 | Tippeligaen | IK Start | 8 | 30 |
| 2015 | NM-Cup | IK Start | 4 | 2 |
| 19/20 | Premiership | Celtic FC | 3 | 28 |
Top assist seasons
| Season | Competition | Club | Assists | Matches |
|---|---|---|---|---|
| 2015 | Tippeligaen | IK Start | 4 | 30 |
| 20/21 | Scottish Premiership Top Six Split | Celtic FC | 2 | 4 |
| 19/20 | Premiership | Celtic FC | 2 | 28 |
Every loan spell across this player's career.
| Season | Date | From | To | Type | Fee | Value at transfer |
|---|---|---|---|---|---|---|
| 16/17 | 2017-05-31 | Kilmarnock FC | Celtic | Return from loan | — | €800k |
| 16/17 | 2017-01-20 | Celtic | Kilmarnock FC | Loan | — | €800k |
Last 50 matches for Brentford FC The Availability column cross-references our injury database — matches inside a known injury window are flagged INJURED. Per-match goal attribution requires a paid feed (FBref/Sofascore) and isn't wired up yet.
| Date | Comp | Home | Score | Away | Availability |
|---|---|---|---|---|---|
| 2026-05-24 | GB1 |
Liverpool FC | 1–1 | Brentford FC | Available |
| 2026-05-17 | GB1 |
Brentford FC | – | Crystal Palace FC | TIMED |
| 2026-05-09 | GB1 |
Manchester City FC | 3–0 | Brentford FC | Available |
| 2026-05-09 | GB1 |
Manchester City FC | 3–0 | Brentford FC | Available |
| 2026-05-02 | GB1 |
Brentford FC | 3–0 | West Ham United FC | Available |
| 2026-05-02 | GB1 |
Brentford FC | 3–0 | West Ham United FC | Available |
| 2026-04-27 | GB1 |
Manchester United FC | 2–1 | Brentford FC | Available |
| 2026-04-27 | GB1 |
Manchester United FC | 2–1 | Brentford FC | Available |
| 2026-04-18 | GB1 |
Brentford FC | 0–0 | Fulham FC | Available |
| 2026-04-18 | GB1 |
Brentford FC | 0–0 | Fulham FC | Available |
| 2026-04-11 | GB1 |
Brentford FC | 2–2 | Everton FC | Available |
| 2026-03-21 | GB1 |
Leeds United FC | 0–0 | Brentford FC | Available |
| 2026-03-16 | GB1 |
Brentford FC | 2–2 | Wolverhampton Wanderers FC | Available |
| 2026-03-03 | GB1 |
AFC Bournemouth | 0–0 | Brentford FC | Available |
| 2026-02-28 | GB1 |
Burnley FC | 3–4 | Brentford FC | Available |
| 2026-02-21 | GB1 |
Brentford FC | 0–2 | Brighton & Hove Albion FC | Available |
| 2026-02-12 | GB1 |
Brentford FC | 1–1 | Arsenal FC | Available |
| 2026-02-07 | GB1 |
Newcastle United FC | 2–3 | Brentford FC | Available |
| 2026-02-01 | GB1 |
Aston Villa FC | 0–1 | Brentford FC | Available |
| 2026-01-25 | GB1 |
Brentford FC | 0–2 | Nottingham Forest FC | Available |
| 2026-01-17 | GB1 |
Chelsea FC | 2–0 | Brentford FC | Available |
| 2026-01-07 | GB1 |
Brentford FC | 3–0 | Sunderland AFC | Available |
| 2026-01-04 | GB1 |
Everton FC | 2–4 | Brentford FC | Available |
| 2026-01-01 | GB1 |
Brentford FC | 0–0 | Tottenham Hotspur FC | Available |
| 2025-12-27 | GB1 |
Brentford FC | 4–1 | AFC Bournemouth | Available |
| 2025-12-20 | GB1 |
Wolverhampton Wanderers FC | 0–2 | Brentford FC | Available |
| 2025-12-14 | GB1 |
Brentford FC | 1–1 | Leeds United FC | Available |
| 2025-12-06 | GB1 |
Tottenham Hotspur FC | 2–0 | Brentford FC | Available |
| 2025-12-03 | GB1 |
Arsenal FC | 2–0 | Brentford FC | Available |
| 2025-11-29 | GB1 |
Brentford FC | 3–1 | Burnley FC | Available |
| 2025-11-22 | GB1 |
Brighton & Hove Albion FC | 2–1 | Brentford FC | Available |
| 2025-11-09 | GB1 |
Brentford FC | 3–1 | Newcastle United FC | Available |
| 2025-11-01 | GB1 |
Crystal Palace FC | 2–0 | Brentford FC | Available |
| 2025-10-25 | GB1 |
Brentford FC | 3–2 | Liverpool FC | Available |
| 2025-10-20 | GB1 |
West Ham United FC | 0–2 | Brentford FC | Available |
| 2025-10-05 | GB1 |
Brentford FC | 0–1 | Manchester City FC | Available |
| 2025-09-27 | GB1 |
Brentford FC | 3–1 | Manchester United FC | Available |
| 2025-09-20 | GB1 |
Fulham FC | 3–1 | Brentford FC | Available |
| 2025-09-13 | GB1 |
Brentford FC | 2–2 | Chelsea FC | Available |
| 2025-08-30 | GB1 |
Sunderland AFC | 2–1 | Brentford FC | Available |
| 2025-08-23 | GB1 |
Brentford FC | 1–0 | Aston Villa FC | Available |
| 2025-08-17 | GB1 |
Nottingham Forest FC | 3–1 | Brentford FC | Available |
| 2025-05-25 | GB1 |
Wolverhampton Wanderers FC | 1–1 | Brentford FC | Available |
| 2025-05-18 | GB1 |
Brentford FC | 2–3 | Fulham FC | Available |
| 2025-05-10 | GB1 |
Ipswich Town FC | 0–1 | Brentford FC | Available |
| 2025-05-04 | GB1 |
Brentford FC | 4–3 | Manchester United FC | Available |
| 2025-05-01 | GB1 |
Nottingham Forest FC | 0–2 | Brentford FC | Available |
| 2025-04-19 | GB1 |
Brentford FC | 4–2 | Brighton & Hove Albion FC | Available |
| 2025-04-12 | GB1 |
Arsenal FC | 1–1 | Brentford FC | Available |
| 2025-04-06 | GB1 |
Brentford FC | 0–0 | Chelsea FC | Available |
Teams faced most often by Kristoffer Ajer's clubs during seasons he played in those competitions (team-level results, not personal head-to-head goals — see disclaimer above).
| Opponent | P | W | D | L | GF | GA | GD | Win % |
|---|---|---|---|---|---|---|---|---|
| Kilmarnock FC | 13 | 9 | 2 | 2 | 33 | 11 | +22 | 69% |
| St. Mirren FC | 13 | 11 | 1 | 1 | 33 | 7 | +26 | 85% |
| Motherwell FC | 12 | 10 | 2 | 0 | 34 | 9 | +25 | 83% |
| Livingston FC | 12 | 6 | 5 | 1 | 22 | 9 | +13 | 50% |
| Rangers FC | 12 | 6 | 2 | 4 | 15 | 13 | +2 | 50% |
| Aberdeen FC | 11 | 9 | 2 | 0 | 28 | 10 | +18 | 82% |
| Hibernian FC | 11 | 6 | 4 | 1 | 21 | 10 | +11 | 55% |
| St. Johnstone FC | 11 | 9 | 2 | 0 | 31 | 4 | +27 | 82% |
| Heart of Midlothian | 10 | 7 | 0 | 3 | 24 | 8 | +16 | 70% |
| Ross County FC | 9 | 8 | 0 | 1 | 28 | 4 | +24 | 89% |
| Hamilton Academical | 9 | 9 | 0 | 0 | 24 | 3 | +21 | 100% |
| Dundee FC | 7 | 7 | 0 | 0 | 24 | 2 | +22 | 100% |
Auto-detected milestones based on cumulative career totals.
| Season / Year | Milestone | Date |
|---|---|---|
| 16/17 | Senior debut season | |
| 18/19 | First senior goal |
Yellow / second-yellow / red cards per season. Only seasons with at least one card are shown.
| Season | Matches | Mins | YC | 2nd YC | RC | Cards / 90′ |
|---|---|---|---|---|---|---|
| 24/25 | 25 | 0 | 5 | 0 | 0 | 0 |
| 23/24 | 31 | 917 | 5 | 0 | 0 | 0.49 |
| 21/22 | 28 | 1,987 | 5 | 0 | 0 | 0.23 |
| 2016 | 14 | 270 | 4 | 0 | 0 | 1.33 |
| 2015 | 34 | 357 | 3 | 0 | 0 | 0.76 |
| 2014 | 13 | 605 | 1 | 0 | 0 | 0.15 |
| 20/21 | 46 | 3,043 | 1 | 0 | 0 | 0.03 |
| 19/20 | 50 | 1,286 | 8 | 0 | 0 | 0.56 |
| 18/19 | 45 | 180 | 8 | 0 | 1 | 4.5 |
| 17/18 | 34 | 0 | 4 | 0 | 0 | 0 |
| 16/17 | 25 | 0 | 4 | 0 | 0 | 0 |
Output by competition
Career goals and assists broken down by tournament.
More on Kristoffer Ajer
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Frequently asked about Kristoffer Ajer
Who is Kristoffer Ajer?
Kristoffer Ajer is a Norway professional footballer who plays as a centre-back for Brentford FC.
How old is Kristoffer Ajer?
Kristoffer Ajer is 28 years old. He was born on April 17, 1998 in Rælingen.
What position does Kristoffer Ajer play?
Kristoffer Ajer plays as a centre-back (Defender - Centre-Back).
What club does Kristoffer Ajer play for?
Kristoffer Ajer currently plays for Brentford FC.
How many career goals has Kristoffer Ajer scored?
Across all senior club competitions in our dataset, Kristoffer Ajer has scored 24 goals in 358 appearances.
What is Kristoffer Ajer's market value?
Kristoffer Ajer's most recent reported market value is €18.00m.
Norway