PLAYER PROFILE / Goalkeeper

Sung-yun Gu.

FC Seoul · Korea, South

TM 238030 · Current player profile
Full career record
Age today—
Recorded moves4
Peak recorded value€1.40m
Current market value€500k

01 / PLAYER DETAILS

At a glance

Full name
구성윤
Born
—
Nationality
Korea, South
Position
Goalkeeper
Preferred foot
right
Height
197
Joined current club
16 Jan 2026
Contract expires
—

02 / THE JOURNEY

Previous clubs

Clubs from completed, dated transfers, most recent first. Repeat spells are listed in the full transfer history.

03 / VALUE OVER TIME

Market value history

17 valuations
Sung-yun Gu historical market values in euros, newest first
Valuation dateAge thenClub at the timeMarket value
16 Nov 2022—Not recorded€700k
07 Oct 2022—Not recorded€750k
18 Jun 2022—Not recorded€825k
26 Dec 2021—Not recorded€850k
22 Jun 2021—Not recorded€850k
21 Dec 2020—Not recorded€850k
27 Jul 2020—Not recorded€850k
08 Apr 2020—Not recorded€1.00m
28 Dec 2019—Not recorded€1.30m
27 Jun 2019—Not recorded€1.40m
05 Jan 2019—Not recorded€1.40m
05 Jan 2018—Not recorded€825k
25 Mar 2017—Not recorded€600k
22 Jun 2016—Not recorded€475k
01 Jul 2015—Not recorded€250k
31 Mar 2014—Not recorded€25k
05 Jul 2013—Not recorded€25k

Each row is a dated valuation. The bar shows its share of the player’s peak recorded value. — means not recorded.

04 / EVERY MOVE

Full transfer history

4 records
Sung-yun Gu full transfer history
DateFromToMoveFee
16 Jan 2026 Seoul E-Land FC Seoul Not recorded —
17 Jul 2025 Kyoto Sanga Seoul E-Land Not recorded —
10 Jan 2024 Hokkaido Consadole Sapporo Kyoto Sanga Not recorded —
25 Jul 2023 Hokkaido Consadole Sapporo Kyoto Sanga Not recorded —

Includes loans, loan returns, internal moves and scheduled transfers. Free means a recorded €0 fee; — means no figure was recorded.