South KoreaMatches analysed: 642023–2026Ko Hyung-Jin · K League 1: referee stats
Ko Hyung-Jin (South Korea) has shown 3.95 cards per game in 64 analysed matches — +5% compared with the average of the same leagues. Profile: strict.
Strict · +5%Upcoming matches with Ko Hyung-Jin
Referee radar
Percentile among 2957 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)
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 |
| 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 |
| Sun 22 Mar | Pohang Steelers – Bucheon FC 1995K League 1 | 0:0 | 4 | 20 | 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 3.95 cards per game in 64 analysed matches (league average in the same competitions: 3.73).
Is Ko Hyung-Jin a strict referee?
Compared with the leagues where Ko Hyung-Jin officiates, the card count is +5% – profile: strict. 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 39% of matches and over 3.5 cards in 56%. Both teams were booked in 78%.
Does Ko Hyung-Jin give many penalties?
A penalty was awarded in 14% of matches refereed by Ko Hyung-Jin.