Chance Liga

Jakub Martinec

Jakub Martinec, 28, from Czech Republic ➤ AC Sparta Prague, since 2025 ➤ Centre-Back ➤ Market value: €850k ➤ * 13/03/1998 in Vysoké Mýto, Czech Republic

Sparta PragueDefender - Centre-Back28 years€850k
Jakub Martinec

Info

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

Club
Sparta Prague
Position
Defender - Centre-Back
Shirt
#4
Age
28
Date of birth
13/03/1998
Height
1,85m
Citizenship
Czech Republic
Joined
05/09/2025
Contract until
30/06/2029
Market value
€850k
Career fees
€1.15m
Youth clubs
SK Vysoké Mýto (2004 - 2011) FC Hradec Králové (2011) SK Vysoké Mýto (2011 - 2013) FC Hradec Králové (2013 - 2016)

Statistics

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

This season

Season totals are not in yet for this player.

By competition

CompetitionAppsGA
Chance Liga138116
ChNL4950
Juniorska liga2322
MOL Cup2021
Chance Liga Relegation Gr.1020
JL - Championship920
Chance Liga Champion Gr.801
1. liga U19820
Europa League Qualifying300
Conference League200
UECL Qualifying210
CFL100
Champions League Qu.000

By club

ClubAppsGA
Jablonec158147
Hradec Kralove5460
Hradec Kr. B3242
Sparta Prague1911
Hradec Kr. U19820
Sparta Prague B100
Jablonec B100

Transfers

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

DateSeasonFromToFeeMarket value
05/09/202525/26JablonecSparta Prague€1.00m€650k
11/08/202020/21Hradec KraloveJablonec€150k€300k
01/07/201818/19Hradec Kr. BHradec Kralove--
01/07/201616/17Hradec Kr. U19Hradec Kr. B--
01/01/201514/15Hradec Kr. U17Hradec Kr. U19--
01/07/201414/15Hradec Kr. Yth.Hradec Kr. U17--
13/08/201313/14Vys. Myto Yth.Hradec Kr. Yth.?-

National

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

TeamCapsGoalsShirtDebutStatus
Czechia U16000Former international
Czechia U1720192014-08-27Former 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
€850k
Highest
€850k · 22/12/2025
Last change
20/05/2026
Centre-Back 1.687Chance Liga 114Czech Republic 92Sparta Prague 23Worldwide 9.271Year 1998 757
DateAgeClubValue
30/12/201820FC Hradec Kralove€100k
25/06/201921FC Hradec Kralove€250k
07/12/201921FC Hradec Kralove€300k
10/07/202022FC Hradec Kralove€300k
27/12/202022FK Jablonec€500k
25/06/202123FK Jablonec€500k
26/12/202123FK Jablonec€450k
22/06/202224FK Jablonec€350k
14/12/202224FK Jablonec€350k
20/06/202325FK Jablonec€350k
20/12/202325FK Jablonec€450k
05/06/202426FK Jablonec€550k
20/12/202426FK Jablonec€600k
17/06/202527FK Jablonec€650k
22/12/202527AC Sparta Prague€850k
20/05/202628AC Sparta Prague€850k

xG Statistics

Jakub Martinec is not yet matched to an Understat player model, so there are no xG rows. When the mapping appears, this block will show appearances, minutes, goals, xG, npxG, assists, xA, shots, key passes and xGChain for each available season.

Understat has no season rows for this player yet.

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