Bundesliga

Mark Flekken

Mark Flekken, 33, from Netherlands ➤ Bayer 04 Leverkusen, since 2025 ➤ Goalkeeper ➤ Market value: €6.00m ➤ * 13/06/1993 in Bocholtz , Netherlands

LeverkusenGoalkeeper33 years€6.00m
Mark Flekken

Info

Biographical card, current club and contract facts. Empty fields mean the source did not publish that value.

Club
Leverkusen
Position
Goalkeeper
Shirt
#1
Age
33
Date of birth
13/06/1993
Height
1,95m
Foot
both
Citizenship
Netherlands
Joined
01/07/2025
Contract until
30/06/2028
Market value
€6.00m
Career fees
€26.00m
Youth clubs
WDZ Bocholtz (1998-2005), Roda JC Kerkrade (2005-2009), Alemannia Aachen (2009-2012)

Statistics

Career totals from Transfermarkt: this season, then by competition and by club. Minutes and cards appear when the source recorded them.

This season

SeasonCompetitionAppsMinGAYCRC
26/27Bundesliga21800000
26/27DFB-Pokal000000

By competition

CompetitionAppsGA
Bundesliga10600
Premier League7403
3. Liga5210
2. Bundesliga3400
Regionalliga Bayern2500
U19-Bundesliga West2500
U17-Bundesliga West2410
DFB-Pokal1600
Mittelrheinliga900
Europa League700
UEFA Champions League600
Mittelrheinpokal300
EFL Cup300
Regionalliga Südwest301
Niederrheinpokal200
Bundesliga Playoffs000
FA Cup000
NRW-Liga000

By club

ClubAppsGA
Freiburg9600
Brentford7703
MSV Duisburg7210
Leverkusen3600
Gr. Fürth II2500
Aachen U192500
Aachen U172410
Alem. Aachen1800
A. Aachen II900
Greuther Fürth400
SC Freiburg II301

Transfers

Recorded moves between clubs, with fee and market value on the day of the deal when the source has them.

DateSeasonFromToFeeMarket value
01/07/202525/26BrentfordLeverkusen€11.00m€10.00m
01/07/202323/24FreiburgBrentford€13.00m€10.00m
01/07/201818/19MSV DuisburgFreiburg€2.00m€900k
01/07/201616/17Greuther FürthMSV Duisburg?€200k
01/07/201313/14Alem. AachenGreuther Fürthfree transfer€250k
01/07/201212/13Aachen U19Alem. Aachen-€50k
01/07/201010/11Aachen U17Aachen U19--
01/07/200909/10Roda JC KerkradeAachen U17free transfer-

National

Senior and youth national-team spells: caps, goals, shirt number and whether the player is still in the current pool.

TeamCapsGoalsShirtDebutStatus
Netherlands120232022-03-26Current international

Market value

Current and peak Transfermarkt valuations, plus the history of changes by club and age. Rankings are relative to the current squad, league and position group.

Current
€6.00m
Highest
€12.00m · 09/10/2023
Last change
27/05/2026
Bundesliga 202Goalkeeper 99Leverkusen 20Netherlands 84Worldwide 1.959Year 1993 8
DateAgeClubValue
18/10/201118Alemannia Aachen U19€50k
16/01/201218Alemannia Aachen U19€50k
29/01/201319Alemannia Aachen€100k
11/03/201319Alemannia Aachen€200k
28/06/201320Alemannia Aachen€250k
20/01/201420SpVgg Greuther Fürth€250k
30/06/201421SpVgg Greuther Fürth€250k
13/01/201521SpVgg Greuther Fürth€200k
01/07/201522SpVgg Greuther Fürth€200k
11/02/201622SpVgg Greuther Fürth€200k
14/07/201623MSV Duisburg€200k
08/10/201623MSV Duisburg€250k
10/02/201723MSV Duisburg€350k
14/06/201724MSV Duisburg€450k
17/10/201724MSV Duisburg€600k
22/01/201824MSV Duisburg€750k
19/06/201825MSV Duisburg€900k
18/12/201825SC Freiburg€750k
05/06/201925SC Freiburg€600k
17/12/201926SC Freiburg€1.20m
08/04/202026SC Freiburg€950k
16/09/202027SC Freiburg€2.00m
10/02/202127SC Freiburg€2.00m
09/06/202127SC Freiburg€2.50m
07/10/202128SC Freiburg€4.00m
22/12/202128SC Freiburg€5.50m
09/06/202228SC Freiburg€7.00m
09/11/202229SC Freiburg€7.00m
22/06/202330SC Freiburg€10.00m
09/10/202330Brentford FC€12.00m
19/12/202330Brentford FC€12.00m
27/05/202430Brentford FC€12.00m
16/12/202431Brentford FC€10.00m
30/05/202531Brentford FC€10.00m
19/12/202532Bayer 04 Leverkusen€8.00m
27/05/202632Bayer 04 Leverkusen€6.00m

xG Statistics

Mark Flekken's xG Statistics block is an Understat shot model for the 2026 season. It does not replace goals and assists — it explains them. xG and xA ask whether the chances were good enough; xGChain and xGBuildup show how often the player was on the ball in moves that became shots. Use minutes as the denominator: a large xG in 80 minutes is a hot streak, the same xG over 1,200 minutes is a role. Figures are rounded to two decimals and stay empty when Understat has no match for this player.

SeasonLeagueClubAppsMinGxGnpxGAxAShKPxGChain
2026BundesligaBayer Leverkusen218000000000.47
2025BundesligaBayer Leverkusen24213200000.07015.08

What the columns mean

Read this table as chance quality, not as a scoreboard. A player can outscore xG (finishing well) or lag behind it (missed sitters). Compare rows only when minutes are in the same range.

Apps · Appearances
Matches in which the player was used in this league season, including substitute minutes.
Min · Minutes
Total minutes on the pitch. Useful when comparing output: 1 goal in 90 minutes is not the same as 1 goal in 800.
G · Goals
Goals credited to the player in the Understat shot model for that season.
xG · Expected goals
The quality of shots the player took, expressed as the number of goals an average finisher would score from the same chances. A 0.30 xG shot is a chance that goes in about 3 times in 10.
npxG · Non-penalty xG
Expected goals with penalties removed. This is the cleaner read of open-play and set-piece finishing, because a penalty is usually ~0.76 xG by itself.
A · Assists
Goals that followed the player's last pass. Actual assists, not the model.
xA · Expected assists
The xG value of shots that came directly from the player's key passes. High xA with few assists usually means teammates missed good chances.
Sh · Shots
Total shots recorded by Understat, including blocked and off-target attempts.
KP · Key passes
Passes that led to a shot. This is the volume behind xA.
xGChain · xG chain
Team xG from possessions the player touched. It captures involvement in build-up, not only the shot or the last pass. A midfielder who starts attacks can rank high here without scoring.
xGBuildup · xG buildup
The same possession xG, but excluding the shot-taker and the assist. This is the purest 'how much did this player help create the chance before the final ball' number.
NPG · Non-penalty goals
Goals scored from open play or set pieces, excluding penalties.

Teammates