Jung Sung-Ryong

Sung-Ryong's current-season form is down 62% on last season (Season 8→3), while his Rating eased 14→4. His peak season for form remains 2021/22 (Season 51).

Domestic career

Season	Club	Apps	CS	CS%	Match	RTG	Season
2025/26	Kawasaki Frontale · 8th	4	1	25%	6.65	4	3
2024/25	Kawasaki Frontale · 8th	29	5	17%	7	14	8
2023/24	Kawasaki Frontale · 8th	31	7	23%	6.68	12	23
2022/23	Kawasaki Frontale · 2nd	31	11	35%	6.71	16	39
2021/22	Kawasaki Frontale · 1st	33	14	42%	6.93	21	51

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 11 earlier seasons in the full career.

Korea Republic · international

Side	Apps	G
Korea Republic U23	8	0
South Korea	68	0

Career caps & goals — tournament breakdown in the full career.

Scout report

Experienced headGoalkeeper

Jung Sung-Ryong is a 41-year-old goalkeeper at Kawasaki Frontale, rated 3.5 overall by Field Insider's model. A seasoned veteran, he has been a fringe squad member this season (8.2% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Sung-Ryong.

On the season, Sung-Ryong graded 3 for current form (age-blind), on 1 clean sheet across 4 appearances.

Year-on-year, that's a drop on last season (Season 8 → 3). Over the 6 seasons on record his form has drifted down, peaking in 2021/22.

On long-term talent our Rating reads 4. At 41 Sung-Ryong is into the veteran stage, where the age curve weighs on the projection, and a market index of 0.3 reflects that trajectory.

From the career report

Read the full career report →

Past his 2021/22 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2021/22Trending downBreakout: 2021/22

3.5

Ratingi

below regular-starter level

2.8

Seasoni

below regular-starter level

8.2%

Minutes

limited game time

Def. actions / 90

light defensive volume

Output in context · Kawasaki Frontale finished 8th of 20 · a mid-table side

Apps

Clean sheets

25%

CS rate

8.2%

Minutes

1 clean sheet in 4 appearances (25% of games).

Watch points

Game time. Only 8.2% of available minutes — needs a settled run to prove the level.
Age curve. At 41, both level and resale value are on the downslope.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

Rated 3.5 overall — below regular-starter level. A limited game time keeper carrying the gloves this season. Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.5× and falling).

Generated from Field Insider's rating model · AI-written analysis to follow.

Per 90 & availability

Minutes played %8.2%

Available fixtures38 of 38

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 900

Player flow

Goal involvements0

Cards / 900

Season-by-season progression

Rating (potential)Season (form)

Value & potential by age

Market valueRating

Solid = now · dashed = projected

The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~1), then tapers with age. At 41, Sung-Ryong sits on 0.3, past its peak and easing. The blue line is Sung-Ryong's projected Rating — 3.5 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.

Transfer history

Fukushima United2025/26 – nowFree

Seongnam FCuntil 2025/26

Pohang Steelers2025/26 – 2025/26Free

Kawasaki Frontale2015/16 – 2025/26

Suwon Bluewingsuntil 2015/16

About Jung Sung-Ryong

Sung-Ryong Jung is a 41-year-old goalkeeper who plays for Kawasaki Frontale, born on January 4, 1985 in Jeju, standing 191 cm tall. He is from Korea Republic. Kawasaki Frontale currently sit 8th of 20 in the J1 League.

This season

In the current season, Jung Sung-Ryong has made 4 appearances with 0 goals and 0 assists across 279 minutes, averaging a 6.65 match rating over his last 4 rated games.

Recent matches

November 30, 2025: 1-2 loss at home vs Sanfrecce Hiroshima (9 minutes, 6.9 rating)
October 4, 2025: 1-1 draw away at Kyoto Sanga (90 minutes, 6.3 rating)
April 9, 2025: 3-3 draw at home vs Yokohama F. Marinos (90 minutes, 6.2 rating)
March 1, 2025: 0-1 loss at home vs Kyoto Sanga (90 minutes, 7.2 rating)

Field Insider's view

Field Insider currently rates Jung Sung-Ryong at 3.5 with a Season form score of 2.8. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 18 career titles — among them the Super Cup and the Emperor Cup. Full list in the career record.

Career

Across 16 recorded seasons, Jung Sung-Ryong has totalled 466 club appearances with 0 goals and 2 assists for 3 different clubs. His busiest campaign came in 2013/14, with 34 appearances for Suwon Bluewings.

Jung Sung-Ryong's career has also included time at Fukushima United, Seongnam FC, Pohang Steelers and Suwon Bluewings.

On the international stage, Jung Sung-Ryong has represented Korea Republic U23 and South Korea — 76 caps in our records.

Transfer news

No transfer news found for this player.

Profile

Season stats

Performance data · by competition

Career

Scout report

Output in context · Kawasaki Frontale finished 8th of 20 · a mid-table side

Watch points