South KoreaMatches analysed: 932023–2026Ko Hyung-Jin: referee stats
Ko Hyung-Jin (South Korea) has shown 3.66 cards per game in 93 analysed matches — −1% compared with the average of the same leagues. Profile: average.
Average · −1%Upcoming matches with Ko Hyung-Jin
Referee radar
Percentile among 2790 referees with at least 15 matches; 50 = typical referee. Each axis compares the referee with the average of the leagues where this referee officiates.
Cards per match (last 20 matches)
Ko Hyung-Jin by competition
| Competition | Matches | Cards/g | League avg | vs league | Penalty | Red card |
|---|---|---|---|---|---|---|
 K League 1 | 64 | 3.95 | 3.74 | +5% | 14% | 17% |
| AFC Champions League Elite | 8 | 3.88 | 3.90 | −0% | 13% | 25% |
 Liga 1 | 6 | 3.00 | 4.44 | −12% | 17% | 17% |
| ASEAN Championship | 3 | 2.67 | 3.32 | −4% | 67% | 0% |
| AFC Champions League Two | 2 | 1.50 | 3.38 | −8% | 0% | 0% |
| World Cup - Qualification Asia | 2 | 2.00 | 3.52 | −6% | 0% | 0% |
| FA Cup | 2 | 3.50 | 2.38 | +5% | 0% | 50% |
| AFC U23 Asian Cup | 2 | 3.00 | 3.91 | −4% | 50% | 0% |
| World Cup - U17 | 2 | 2.00 | 2.48 | −2% | 50% | 50% |
| Asian Cup | 1 | 1.00 | 3.51 | −5% | 0% | 0% |
| K League 2 | 1 | 5.00 | 3.10 | +4% | 0% | 0% |
Last matches refereed by Ko Hyung-Jin
| Date | Match | Score | Cards (home–away) | Fouls | Pen. |
|---|---|---|---|---|---|
| Sat 5 Sept | FC Seoul – Incheon UnitedK League 1 | 1:0 | 2 | 14 | 0 |
| Sun 30 Aug | Gangwon FC – Pohang SteelersK League 1 | 0:0 | 2 | — | 0 |
| Sat 22 Aug | Jeonbuk Motors – Ulsan Hyundai FCK League 1 | 1:0 | 7 | — | 0 |
| Sat 15 Aug | Gwangju FC – Pohang SteelersK League 1 | 1:2 | 2 | — | 0 |
| Sat 1 Aug | Gangwon FC – Bucheon FC 1995K League 1 | 0:3 | 6 | — | 0 |
| Wed 22 Jul | Gwangju FC – Gimcheon Sangmu FCK League 1 | 1:1 | 1 | — | 0 |
| Sun 12 Jul | Jeju United FC – Daejeon CitizenK League 1 | 0:0 | 2 | 17 | 0 |
| Sat 23 May | Persib Bandung – PersijapLiga 1 | 0:0 | 3 | — | 0 |
| Sun 17 May | Gangwon FC – Ulsan Hyundai FCK League 1 | 2:0 | 7 | 22 | 0 |
| Wed 13 May | FC Anyang – Gimcheon Sangmu FCK League 1 | 2:2 | 3 | — | 0 |
| Sat 9 May | Daejeon Citizen – Pohang SteelersK League 1 | 0:2 | 4 | 18 | 0 |
| Sat 2 May | Incheon United – Gangwon FCK League 1 | 0:1 | 4 | — | 0 |
| Wed 22 Apr | Daejeon Citizen – Jeju United FCK League 1 | 0:1 | 5 | — | 0 |
| Sun 19 Apr | Ulsan Hyundai FC – Gwangju FCK League 1 | 5:1 | 5 | — | 2 |
| Sun 12 Apr | Gimcheon Sangmu FC – FC AnyangK League 1 | 1:1 | 5 | — | 0 |
How the numbers are calculated
Cards = yellow and red cards shown to players during 90 minutes (a second yellow counts as a yellow plus a red, as most bookmakers settle). Cards for coaches and substitutes on the bench and cards in extra time are excluded. Penalties = penalties awarded during the match (shoot-outs excluded). “vs league” compares the referee with the average of the exact league seasons this referee worked, so a referee from a card-heavy league is not called strict just because of the league.
Data: official match events and statistics (API-Sports), updated daily.
Frequently asked questions
How many cards does Ko Hyung-Jin give per game?
On average 3.66 cards per game in 93 analysed matches (league average in the same competitions: 3.71).
Is Ko Hyung-Jin a strict referee?
Compared with the leagues where Ko Hyung-Jin officiates, the card count is −1% – profile: average. A red card appeared in 17% of these matches.
How often do matches with Ko Hyung-Jin go over 4.5 cards?
Over 4.5 cards in 32% of matches and over 3.5 cards in 47%. Both teams were booked in 73%.
Does Ko Hyung-Jin give many penalties?
A penalty was awarded in 16% of matches refereed by Ko Hyung-Jin.