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KAKristoffer Ajer

Kristoffer Ajer

€17MMarket Value
Brentford
Brentford•Defender•
NorwayNorway
7.2
Season Score
28
Apr 17, 1998
198 cm
Height
0.05
Goals/Match
20
Shirt Number
Card stats based on
2026/2027

Performance Overview

Season Performance 26/27
All Competitions
Matches
2
Goals
0
Assists
0
Goal Contributions
0
Mins/game
90
Avg Rating
7.21
Career Statistics

Career

Career Progress

Career Progress

Appearances per Season

Appearance Distribution

57
Full match
37
Substituted off
21
From Bench

Kristoffer Ajer — computed career insights

Career figures, computed
Best-rated season
2019/2020 · 7.34Premiership
Lowest-rated season
2022/2023 · 6.57Premier League
Rating trend
-0.35last 2 rated seasons vs career average before them (min. 5 apps)
Career involvement (league)
0.12 G+A per 9017 goals + 14 assists across 14 league seasons (per-90 from 23362 minutes on record)
League seasons on record
14 (2014–2026)
Clubs with recorded appearances
7
Among position peers, computed
Rating percentile
17thrating 6.61 vs 132 rated peers
Goals rank
#68 of 1320 goals
G+A per 90 percentile
36th0.05 per 90

Cohort: 132 Premier League defenders, 2025/2026, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.

Figures computed from the GioScore season-stats database · as of 2026-09-03

Rival Clubs(49)

Player stats against each opponent club

TeamMPWDLGA
KilmarnockKilmarnock128311020
HibernianHibernian113620010
RosenborgRosenborg71241020
Tottenham HotspurTottenham Hotspur42110010
Manchester CityManchester City40040010
Manchester UnitedManchester United41030000
Aston VillaAston Villa43100010
ArsenalArsenal41120000
MotherwellMotherwell44001000
StrømsgodsetStrømsgodset40130000
VikingViking41030010
AalesundAalesund41121100
StabækStabæk41032010
OddOdd40130010
LillestrømLillestrøm40310000
Sarpsborg 08Sarpsborg 0841031010
West Ham UnitedWest Ham United32100000
LiverpoolLiverpool31110010
Wolverhampton WanderersWolverhampton Wanderers31110010
Leicester CityLeicester City31020000
1–20 of 49

Rival National Teams(1)

Player stats against each opponent national team

TeamMPWDLGA
NetherlandsNetherlands20110010
Transfers

Transfers

Transfer Value History

Last Transfer: €15.7M

Transfer History

Celtic
Celtic
Brentford
Brentford
Jul 21, 2021Transfer€16M
Kilmarnock
Kilmarnock
Celtic
Celtic
May 31, 2017End of loan
Celtic
Celtic
Kilmarnock
Kilmarnock
Jan 20, 2017Loan
Start
Start
Celtic
Celtic
Jul 1, 2016Transfer€600K
Lillestrøm U19
Lillestrøm U19
Start
Start
Jul 15, 2014Transfer
Trophies

Trophies & Awards

9 titles won

Championships

Premiership
Premiership
3x Winner(2019/2020, 2018/2019, 2017/2018)
3x
League Cup
League Cup
3x Winner(2017, 2019/2020, 2018/2019)
3x
Scottish Cup
Scottish Cup
2x Winner(2018/2019, 2017/2018)
2x
Premier League Cup
Premier League Cup
1x Winner(2022/2023)
1x

About Kristoffer Ajer

In 2025/2026, Kristoffer Ajer's Premier League contribution was creative only — 1 assist in 27 appearances, no goals (1,811 minutes) — 0.05 goal involvements per 90. His average match rating for that season computes to 6.61. Ranked among 132 Premier League defenders (2025/2026, at least 450 minutes), he lands in the 17th percentile for match rating, while ranking 68th of 132 for goals.

Season ratings peak at 7.34 in 2019/2020, Premiership and bottom out at 6.57 in 2022/2023. Averaged over his last two rated seasons, he sits 0.35 below his earlier career level.

Split by competition, the league record covers 3 domestic leagues: Premiership (131 appearances, 5 goals), Premier League (114 appearances, 3 goals) and Eliteserien (54 appearances, 9 goals). 6 of those 14 recorded campaigns ended with 25 league appearances or more. Across 2018/2019–2020/2021, the heaviest three-year block, he totalled 91 league appearances (30 a season).

Frequently Asked Questions

What position does Kristoffer Ajer play?
Kristoffer Ajer plays as a Defender for Brentford in the Premier League. He has started 2 of his 2 appearances in the Premier League 2026/2027.
What team does Kristoffer Ajer play for?
Kristoffer Ajer currently plays for Brentford in the Premier League. He has 2 appearances in the Premier League 2026/2027.
How old is Kristoffer Ajer?
Kristoffer Ajer is 28 years old, born on April 17, 1998. He is from Norway. At 28, he has already won 9 trophies in his professional career.
How tall is Kristoffer Ajer?
Kristoffer Ajer is 198 cm tall. He weighs 92 kg. His preferred foot is the right.
How many trophies has Kristoffer Ajer won?
Kristoffer Ajer has won 9 trophies throughout his career. He currently plays for Brentford.
What nationality is Kristoffer Ajer?
Kristoffer Ajer is from Norway and represents them at international level. At club level, he plays for Brentford.