Leon Flach — Profile, Stats, Transfers

Career snapshot

6

clubs played for

17/18

debut season

0.05

goals / match

Philadelphia Union

top club · 145 apps

Career highs

€4.00m

peak value · 2023

€250k

top transfer fee · 20/21

4

best season · 17/18

4 / 0

int'l caps / goals

Born the same day

Jorge Herrando

Defender - Centre-Back · CA Osasuna

€4.00m

Kaique Rocha

Defender - Centre-Back · Casa Pia AC

€3.00m

Bryce Duke

Midfield - Attacking Midfield · CF Montréal

€2.00m

Konstantinos Thymianis

Midfield - Defensive Midfield · PAOK Thessaloniki

€500k

Shares 2001-02-28 · 6 players total

256Appearances

13Goals

12Assists

24Yellow cards

0Red cards

74Full matches (90′)

Full name	Leon Flach
Name in home country	Leon Maximilian Flach
Date of birth	2001-02-28 (25 yrs)
Place of birth	Humble, Texas, United States
Citizenship	United States Germany
Position	Midfield - Defensive Midfield (main: Midfield)
Foot	left
Height	183.00 m
Current club	Jagiellonia Bialystok
Joined	2025-01-23
Contract expires	2027-06-30
Agent	Sports360 GmbH
Outfitter	Puma

Jul 2025

25/26 — Jagiellonia Bialystok

10 matches · 0 G · 1 A · across 2 competitions

Apr 2025

Injury: unknown

4 games missed

Jan 2025

Transfer: Philadelphia → Jagiellonia

24/25 · Transfer

Jul 2024

2024 — Philadelphia Union

29 matches · 0 G · 3 A · across 2 competitions

Jul 2024

24/25 — Jagiellonia Bialystok

20 matches · 0 G · 0 A · across 4 competitions

Feb 2024

Injury: unknown

11 games missed

Sep 2023

Injury: unknown

6 games missed

Jul 2023

2023 — Philadelphia Union

31 matches · 1 G · 1 A · across 4 competitions

Apr 2023

Injury: unknown

2 games missed

Jul 2022

2022 — Philadelphia Union

38 matches · 1 G · 1 A · across 3 competitions

Jul 2022

22/23 — Philadelphia Union

4 matches · 0 G · 0 A · across 1 competition

Jul 2021

2021 — Philadelphia Union

37 matches · 1 G · 1 A · across 2 competitions

Mar 2021

Transfer: FC St. Pauli → Philadelphia

20/21 · Transfer · €250k

Jul 2020

20/21 — FC St. Pauli, Philadelphia Union, FC St. Pauli II

18 matches · 2 G · 1 A · across 4 competitions

Jul 2020

Transfer: St. Pauli U19 → FC St. Pauli

20/21 · Transfer

Jul 2019

19/20 — FC St. Pauli U19, FC St. Pauli II

19 matches · 1 G · 3 A · across 3 competitions

Jun 2019

Injury: unknown

2 games missed

Jul 2018

18/19 — FC St. Pauli U19

24 matches · 3 G · 0 A · across 2 competitions

Jul 2018

Transfer: St. Pauli U17 → St. Pauli U19

18/19 · Transfer

Jul 2017

17/18 — FC St. Pauli U17, FC St. Pauli U19

26 matches · 4 G · 1 A · across 2 competitions

Jul 2017

Transfer: St. Pauli Yth. → St. Pauli U17

17/18 · Transfer

Jul 2016

Transfer: VfB Lübeck Yth. → St. Pauli Yth.

16/17 · Transfer

Jul 2008

Transfer: Sereetz Yth. → VfB Lübeck Yth.

08/09 · Transfer

Jan 1970

Peak market value: €4.00m

Highest valuation recorded in dataset

Minutes played by club

Jagiellonia Bialystok 0.0%

Philadelphia Union 71.3%

FC St. Pauli 1.7%

FC St. Pauli II 4.1%

FC St. Pauli U19 15.7%

FC St. Pauli U17 7.4%

Club	Seasons	First	Last	Matches	Goals	Assists	Minutes
Jagiellonia Bialystok	2	24/25	25/26	30	0	1	0
Philadelphia Union	6	20/21	22/23	145	3	7	4,747
FC St. Pauli	1	20/21	20/21	9	1	0	110
FC St. Pauli II	2	19/20	20/21	3	1	0	270
FC St. Pauli U19	3	17/18	19/20	46	4	3	1,043
FC St. Pauli U17	1	17/18	17/18	23	4	1	491

Career trajectory — goals, assists & market value

Goals by season

Assists by season

Season	Competition	Club	Matches	Goals	Assists	YC	Minutes
25/26	Ekstraklasa	Jagiellonia Bialystok	5	0	0	0	0
25/26	UECL Qualifiers	Jagiellonia Bialystok	5	0	1	0	0
24/25	Conference League	Jagiellonia Bialystok	5	0	0	1	0
24/25	Ekstraklasa	Jagiellonia Bialystok	13	0	0	0	0
24/25	Puchar Polski	Jagiellonia Bialystok	1	0	0	0	0
24/25	Superpuchar	Jagiellonia Bialystok	1	0	0	0	0
22/23	CONCACAF CL	Philadelphia Union	4	0	0	0	0
2024	Leagues Cup	Philadelphia Union	6	0	0	0	0
2024	MLS	Philadelphia Union	23	0	3	2	0
2023	Leagues Cup	Philadelphia Union	3	0	0	0	0
2023	MLS	Philadelphia Union	25	1	1	5	1,800
2023	MLS Cup Playoffs	Philadelphia Union	2	0	0	0	0
2023	US Open Cup	Philadelphia Union	1	0	0	0	0
2022	MLS	Philadelphia Union	34	0	1	3	0
2022	MLS Cup Playoffs	Philadelphia Union	3	1	0	1	300
2022	US Open Cup	Philadelphia Union	1	0	0	0	0
2021	MLS	Philadelphia Union	34	1	1	4	2,647
2021	MLS Cup Playoffs	Philadelphia Union	3	0	0	0	0
20/21	2. Bundesliga	FC St. Pauli	9	1	0	0	110
20/21	CONCACAF CL	Philadelphia Union	6	0	1	0	0
20/21	DFB-Pokal	FC St. Pauli	0	0	0	0	0
20/21	Regionalliga Nord	FC St. Pauli II	3	1	0	0	270
19/20	DFB-Pokal der Junioren	FC St. Pauli U19	2	1	0	0	180
19/20	Regionalliga Nord	FC St. Pauli II	0	0	0	0	0
19/20	U19-BL N/NE	FC St. Pauli U19	17	0	3	2	0
18/19	DFB-Pokal der Junioren	FC St. Pauli U19	3	1	0	0	180
18/19	U19-BL N/NE	FC St. Pauli U19	21	2	0	2	683
17/18	U17-BL N/NE	FC St. Pauli U17	23	4	1	4	491
17/18	U19-BL N/NE	FC St. Pauli U19	3	0	0	0	0

Season	Date	From	To	Type	Market value	Fee
08/09	2008-07-01	Sereetz Yth.	VfB Lübeck Yth.	Transfer	0	—
16/17	2016-07-01	VfB Lübeck Yth.	St. Pauli Yth.	Transfer	0	—
17/18	2017-07-01	St. Pauli Yth.	St. Pauli U17	Transfer	0	—
18/19	2018-07-01	St. Pauli U17	St. Pauli U19	Transfer	0	—
20/21	2020-07-01	St. Pauli U19	FC St. Pauli	Transfer	0	—
20/21	2021-03-31	FC St. Pauli	Philadelphia	Transfer	400000	€250k
24/25	2025-01-23	Philadelphia	Jagiellonia	Transfer	3000000	—

Season	Injury	From	To	Days missed	Games missed
18/19	Meniscus damage	2019-06-27	2019-08-17	52	2
22/23	Hip problems	2023-04-10	2023-04-20	11	2
23/24	Groin injury	2023-09-01	2023-10-03	33	6
23/24	Muscle tear	2024-02-02	2024-04-25	84	11
24/25	Hip flexor problems	2025-04-13	2025-04-27	15	4

Current€3.00m

Peak€4.00m

Low€100k

Δ since start+€2.80m

Date	Value
Jan 1, 1970	€3.00m
Jan 1, 1970	€3.00m
Jan 1, 1970	€4.00m
Jan 1, 1970	€4.00m
Jan 1, 1970	€4.00m
Jan 1, 1970	€3.50m
Jan 1, 1970	€3.00m
Jan 1, 1970	€600k
Jan 1, 1970	€2.00m
Jan 1, 1970	€400k
Jan 1, 1970	€100k
Jan 1, 1970	€200k

Team	Shirt	Matches	Debut	Age at debut	Status
Team #11946	—	2	—	—	former national player
Team #9067	#16	2	—	—	retired national player
Team #3505	—	0	—	—	former national player

Teammate	PPG played with	Joint goals	Minutes
Paxten Aaronson	2	0	945
Chris Donovan	1	1	698
Jack McGlynn	1	1	0
Gustavo Melo	1	0	0
Jesús Bueno	2	1	0
Umut Ataykaya	1	0	0
Jamiro Monteiro	2	0	0
Sergio Santos	2	0	0
Luca Günther	1	0	0
Kacper Przybylko	2	2	0
Aurel Loubongo	2	0	0
Cory Burke	2	0	0
Serkan Dursun	1	2	0
Jakob Glesnes	2	0	0
Julián Carranza	2	1	0
Quinn Sullivan	2	1	0
Nathan Harriel	2	0	0
Mikael Uhre	2	1	0
Olivier Mbaizo	2	0	0
José Martínez	2	0	0

Single-season peaks across competitions in this player's career.

Top goalscoring seasons

Season	Competition	Club	Goals	Matches
17/18	U17-BL N/NE	FC St. Pauli U17	4	23
18/19	U19-BL N/NE	FC St. Pauli U19	2	21
18/19	DFB-Pokal der Junioren	FC St. Pauli U19	1	3

Top assist seasons

Season	Competition	Club	Assists	Matches
2024	MLS	Philadelphia Union	3	23
19/20	U19-BL N/NE	FC St. Pauli U19	3	17
20/21	CONCACAF CL	Philadelphia Union	1	6

Teams faced most often by Leon Flach'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 %
New England Revolution	12	8	2	2	22	11	+11	67%
New York RB	10	5	2	3	14	10	+4	50%
D.C. United	9	7	1	1	25	9	+16	78%
Columbus Crew	9	2	2	5	7	7	0	22%
Impact de Montréal	9	4	1	4	16	18	-2	44%
Toronto FC	8	2	1	5	11	16	-5	25%
1. FC Heidenheim 1846	8	3	2	3	11	13	-2	38%
SpVgg Greuther Fürth	8	3	0	5	10	15	-5	38%
Jahn Regensburg	8	2	3	3	11	14	-3	25%
Erzgebirge Aue	8	2	2	4	12	15	-3	25%
SV Darmstadt 98	8	2	1	5	8	15	-7	25%
Holstein Kiel	8	3	1	4	9	13	-4	38%

Auto-detected milestones based on cumulative career totals.

Season / Year	Milestone	Date
17/18	Senior debut season
17/18	First senior goal

Yellow / second-yellow / red cards per season. Only seasons with at least one card are shown.

Season	Matches	Mins	YC	Cards / 90′
24/25	20	0	1	0
2024	29	0	2	0
2023	31	1,800	5	0.25
2022	38	300	4	1.2
2021	37	2,647	4	0.14
19/20	19	180	2	1
18/19	24	863	2	0.21
17/18	26	491	4	0.73