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Home Referees Koei Koya

Koei Koya

Football Referee · 2020-2026 · 6 competitions · 162 career matches

162 Matches
6 Competitions
2.25 Yellows / Game
0.14 Reds / Game
365 Total Yellows
22 Total Reds

Career by Competition

6 competitions
Competition Apps Yel / G Red / G BTB %
J1 League Japan 89 218 2.45 13 0.15 52%
J2-League Japan 38 68 1.79 1 0.03 47%
J-League Cup Japan 13 30 2.31 1 0.08 38%
J1 100 Year Vision League Japan 13 34 2.62 5 0.38 62%
Emperor Cup Japan 8 14 1.75 2 0.25 38%
J2/J3 100 Year Vision League Japan 1 1 1.00 0 0.00 0%

Most Officiated Teams

Top 12
Avispa Fukuoka 16 apps
Vissel Kobe 15 apps
Shimizu S-Pulse 15 apps
Sanfrecce Hiroshima 14 apps
Kyoto Sanga 14 apps
Yokohama F. Marinos 13 apps
Kashiwa Reysol 12 apps
Shonan Bellmare 12 apps
Nagoya Grampus 11 apps
Oita Trinita 11 apps
Gamba Osaka 11 apps
Kashima Antlers 10 apps

J1 League 2026/2027

8 matches recorded · Japan

Card Summary

Yellow Cards 24
Red Cards 1
Yellows / Game 3.00
Reds / Game 0.13

Cards by Half

1st Half Cards 11
2nd Half Cards 14
1H / Game 1.38
2H / Game 1.75

Home vs Away

Home Cards 11
Away Cards 13
Home / Game 1.38
Away / Game 1.63

Both Teams Booked

BTB Total 4 / 8
BTB % 50%
BTB 1H % 25%
BTB 2H % 38%

Over Yellow Cards

O 0.5
100%
O 1.5
88%
O 2.5
50%
O 3.5
38%
O 4.5
25%
O 5.5
0%

Over Cards - 1st Half

O 0.5
88%
O 1.5
50%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
88%
O 1.5
50%
O 2.5
25%
O 3.5
13%

Over Home Team Cards

O 0.5
75%
O 1.5
38%
O 2.5
25%

Over Away Team Cards

O 0.5
75%
O 1.5
63%
O 2.5
25%

Result Distribution

Home Win 50%
Draw 25%
Away Win 25%
50%
25%
25%
Home Draw Away

J-League Cup 2026/2027

2 matches recorded · Japan

Card Summary

Yellow Cards 9
Red Cards 0
Yellows / Game 4.50
Reds / Game 0.00

Cards by Half

1st Half Cards 2
2nd Half Cards 6
1H / Game 1.00
2H / Game 3.00

Home vs Away

Home Cards 5
Away Cards 4
Home / Game 2.50
Away / Game 2.00

Both Teams Booked

BTB Total 2 / 2
BTB % 100%
BTB 1H % 50%
BTB 2H % 100%

Over Yellow Cards

O 0.5
100%
O 1.5
100%
O 2.5
100%
O 3.5
50%
O 4.5
50%
O 5.5
50%

Over Cards - 1st Half

O 0.5
50%
O 1.5
50%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
100%
O 1.5
100%
O 2.5
100%
O 3.5
0%

Over Home Team Cards

O 0.5
100%
O 1.5
100%
O 2.5
50%

Over Away Team Cards

O 0.5
100%
O 1.5
50%
O 2.5
50%

Result Distribution

Home Win 50%
Draw 0%
Away Win 50%
50%
0%
50%
Home Draw Away

J2-League 2026/2027

3 matches recorded · Japan

Card Summary

Yellow Cards 7
Red Cards 0
Yellows / Game 2.33
Reds / Game 0.00

Cards by Half

1st Half Cards 2
2nd Half Cards 5
1H / Game 0.67
2H / Game 1.67

Home vs Away

Home Cards 3
Away Cards 4
Home / Game 1.00
Away / Game 1.33

Both Teams Booked

BTB Total 3 / 3
BTB % 100%
BTB 1H % 0%
BTB 2H % 67%

Over Yellow Cards

O 0.5
100%
O 1.5
100%
O 2.5
33%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
67%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
100%
O 1.5
67%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
100%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
33%
O 2.5
0%

Result Distribution

Home Win 33%
Draw 33%
Away Win 33%
33%
33%
33%
Home Draw Away

Emperor Cup 2026/2027

2 matches recorded · Japan

Card Summary

Yellow Cards 4
Red Cards 0
Yellows / Game 2.00
Reds / Game 0.00

Cards by Half

1st Half Cards 1
2nd Half Cards 3
1H / Game 0.50
2H / Game 1.50

Home vs Away

Home Cards 0
Away Cards 4
Home / Game 0.00
Away / Game 2.00

Both Teams Booked

BTB Total 0 / 2
BTB % 0%
BTB 1H % 0%
BTB 2H % 0%

Over Yellow Cards

O 0.5
100%
O 1.5
50%
O 2.5
50%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
50%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
100%
O 1.5
50%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
50%
O 2.5
50%

Result Distribution

Home Win 100%
Draw 0%
Away Win 0%
100%
0%
0%
Home Draw Away

J2/J3 100 Year Vision League 2026

1 matches recorded · Japan

Card Summary

Yellow Cards 1
Red Cards 0
Yellows / Game 1.00
Reds / Game 0.00

Cards by Half

1st Half Cards 1
2nd Half Cards 0
1H / Game 1.00
2H / Game 0.00

Home vs Away

Home Cards 0
Away Cards 1
Home / Game 0.00
Away / Game 1.00

Both Teams Booked

BTB Total 0 / 1
BTB % 0%
BTB 1H % 0%
BTB 2H % 0%

Over Yellow Cards

O 0.5
100%
O 1.5
0%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
100%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
0%
O 2.5
0%

Result Distribution

Home Win 0%
Draw 0%
Away Win 100%
0%
0%
100%
Home Draw Away

J1 100 Year Vision League 2026

13 matches recorded · Japan

Card Summary

Yellow Cards 34
Red Cards 5
Yellows / Game 2.62
Reds / Game 0.38

Cards by Half

1st Half Cards 10
2nd Half Cards 23
1H / Game 0.77
2H / Game 1.77

Home vs Away

Home Cards 16
Away Cards 18
Home / Game 1.23
Away / Game 1.38

Both Teams Booked

BTB Total 8 / 13
BTB % 62%
BTB 1H % 15%
BTB 2H % 46%

Over Yellow Cards

O 0.5
92%
O 1.5
69%
O 2.5
38%
O 3.5
31%
O 4.5
31%
O 5.5
0%

Over Cards - 1st Half

O 0.5
46%
O 1.5
23%
O 2.5
8%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
85%
O 1.5
54%
O 2.5
23%
O 3.5
8%

Over Home Team Cards

O 0.5
85%
O 1.5
23%
O 2.5
15%

Over Away Team Cards

O 0.5
69%
O 1.5
46%
O 2.5
15%

Result Distribution

Home Win 46%
Draw 8%
Away Win 46%
46%
8%
46%
Home Draw Away

J2-League 2025

4 matches recorded · Japan

Card Summary

Yellow Cards 12
Red Cards 0
Yellows / Game 3.00
Reds / Game 0.00

Cards by Half

1st Half Cards 6
2nd Half Cards 6
1H / Game 1.50
2H / Game 1.50

Home vs Away

Home Cards 3
Away Cards 9
Home / Game 0.75
Away / Game 2.25

Both Teams Booked

BTB Total 3 / 4
BTB % 75%
BTB 1H % 25%
BTB 2H % 25%

Over Yellow Cards

O 0.5
100%
O 1.5
100%
O 2.5
75%
O 3.5
25%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
100%
O 1.5
50%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
100%
O 1.5
50%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
75%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
75%
O 2.5
50%

Result Distribution

Home Win 25%
Draw 0%
Away Win 75%
25%
0%
75%
Home Draw Away

J-League 2025

13 matches recorded · Japan

Card Summary

Yellow Cards 37
Red Cards 4
Yellows / Game 2.85
Reds / Game 0.31

Cards by Half

1st Half Cards 11
2nd Half Cards 24
1H / Game 0.85
2H / Game 1.85

Home vs Away

Home Cards 18
Away Cards 19
Home / Game 1.38
Away / Game 1.46

Both Teams Booked

BTB Total 7 / 13
BTB % 54%
BTB 1H % 0%
BTB 2H % 38%

Over Yellow Cards

O 0.5
100%
O 1.5
85%
O 2.5
46%
O 3.5
38%
O 4.5
15%
O 5.5
0%

Over Cards - 1st Half

O 0.5
62%
O 1.5
23%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
85%
O 1.5
38%
O 2.5
31%
O 3.5
15%

Over Home Team Cards

O 0.5
77%
O 1.5
31%
O 2.5
15%

Over Away Team Cards

O 0.5
77%
O 1.5
46%
O 2.5
15%

Result Distribution

Home Win 38%
Draw 23%
Away Win 38%
38%
23%
38%
Home Draw Away

Emperor Cup 2025

3 matches recorded · Japan

Card Summary

Yellow Cards 7
Red Cards 0
Yellows / Game 2.33
Reds / Game 0.00

Cards by Half

1st Half Cards 0
2nd Half Cards 4
1H / Game 0.00
2H / Game 1.33

Home vs Away

Home Cards 4
Away Cards 3
Home / Game 1.33
Away / Game 1.00

Both Teams Booked

BTB Total 2 / 3
BTB % 67%
BTB 1H % 0%
BTB 2H % 33%

Over Yellow Cards

O 0.5
100%
O 1.5
67%
O 2.5
67%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
67%
O 1.5
33%
O 2.5
33%
O 3.5
0%

Over Home Team Cards

O 0.5
100%
O 1.5
33%
O 2.5
0%

Over Away Team Cards

O 0.5
67%
O 1.5
33%
O 2.5
0%

Result Distribution

Home Win 67%
Draw 0%
Away Win 33%
67%
0%
33%
Home Draw Away

J-League Cup 2025

3 matches recorded · Japan

Card Summary

Yellow Cards 10
Red Cards 0
Yellows / Game 3.33
Reds / Game 0.00

Cards by Half

1st Half Cards 5
2nd Half Cards 5
1H / Game 1.67
2H / Game 1.67

Home vs Away

Home Cards 6
Away Cards 4
Home / Game 2.00
Away / Game 1.33

Both Teams Booked

BTB Total 2 / 3
BTB % 67%
BTB 1H % 67%
BTB 2H % 0%

Over Yellow Cards

O 0.5
100%
O 1.5
100%
O 2.5
100%
O 3.5
33%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
67%
O 1.5
67%
O 2.5
33%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
100%
O 1.5
33%
O 2.5
33%
O 3.5
0%

Over Home Team Cards

O 0.5
100%
O 1.5
67%
O 2.5
33%

Over Away Team Cards

O 0.5
67%
O 1.5
67%
O 2.5
0%

Result Distribution

Home Win 67%
Draw 0%
Away Win 33%
67%
0%
33%
Home Draw Away

J-League 2024

17 matches recorded · Japan

Card Summary

Yellow Cards 47
Red Cards 2
Yellows / Game 2.76
Reds / Game 0.12

Cards by Half

1st Half Cards 25
2nd Half Cards 27
1H / Game 1.47
2H / Game 1.59

Home vs Away

Home Cards 27
Away Cards 25
Home / Game 1.59
Away / Game 1.47

Both Teams Booked

BTB Total 12 / 17
BTB % 71%
BTB 1H % 24%
BTB 2H % 24%

Over Yellow Cards

O 0.5
94%
O 1.5
82%
O 2.5
53%
O 3.5
41%
O 4.5
6%
O 5.5
0%

Over Cards - 1st Half

O 0.5
76%
O 1.5
41%
O 2.5
24%
O 3.5
6%

Over Cards - 2nd Half

O 0.5
82%
O 1.5
41%
O 2.5
24%
O 3.5
12%

Over Home Team Cards

O 0.5
82%
O 1.5
29%
O 2.5
29%

Over Away Team Cards

O 0.5
88%
O 1.5
41%
O 2.5
12%

Result Distribution

Home Win 29%
Draw 29%
Away Win 41%
29%
29%
41%
Home Draw Away

J2-League 2024

7 matches recorded · Japan

Card Summary

Yellow Cards 11
Red Cards 0
Yellows / Game 1.57
Reds / Game 0.00

Cards by Half

1st Half Cards 5
2nd Half Cards 6
1H / Game 0.71
2H / Game 0.86

Home vs Away

Home Cards 7
Away Cards 4
Home / Game 1.00
Away / Game 0.57

Both Teams Booked

BTB Total 3 / 7
BTB % 43%
BTB 1H % 0%
BTB 2H % 14%

Over Yellow Cards

O 0.5
86%
O 1.5
57%
O 2.5
14%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
71%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
71%
O 1.5
14%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
71%
O 1.5
29%
O 2.5
0%

Over Away Team Cards

O 0.5
57%
O 1.5
0%
O 2.5
0%

Result Distribution

Home Win 43%
Draw 29%
Away Win 29%
43%
29%
29%
Home Draw Away

Emperor Cup 2024

2 matches recorded · Japan

Card Summary

Yellow Cards 2
Red Cards 2
Yellows / Game 1.00
Reds / Game 1.00

Cards by Half

1st Half Cards 5
2nd Half Cards 0
1H / Game 2.50
2H / Game 0.00

Home vs Away

Home Cards 1
Away Cards 4
Home / Game 0.50
Away / Game 2.00

Both Teams Booked

BTB Total 1 / 2
BTB % 50%
BTB 1H % 50%
BTB 2H % 0%

Over Yellow Cards

O 0.5
50%
O 1.5
50%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
50%
O 1.5
50%
O 2.5
50%
O 3.5
50%

Over Cards - 2nd Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
50%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
50%
O 1.5
50%
O 2.5
50%

Result Distribution

Home Win 100%
Draw 0%
Away Win 0%
100%
0%
0%
Home Draw Away

Ybc Levain Cup 2024

2 matches recorded · Japan

Card Summary

Yellow Cards 6
Red Cards 0
Yellows / Game 3.00
Reds / Game 0.00

Cards by Half

1st Half Cards 3
2nd Half Cards 3
1H / Game 1.50
2H / Game 1.50

Home vs Away

Home Cards 3
Away Cards 3
Home / Game 1.50
Away / Game 1.50

Both Teams Booked

BTB Total 1 / 2
BTB % 50%
BTB 1H % 50%
BTB 2H % 50%

Over Yellow Cards

O 0.5
100%
O 1.5
50%
O 2.5
50%
O 3.5
50%
O 4.5
50%
O 5.5
0%

Over Cards - 1st Half

O 0.5
50%
O 1.5
50%
O 2.5
50%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
100%
O 1.5
50%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
100%
O 1.5
50%
O 2.5
0%

Over Away Team Cards

O 0.5
50%
O 1.5
50%
O 2.5
50%

Result Distribution

Home Win 100%
Draw 0%
Away Win 0%
100%
0%
0%
Home Draw Away

Emperor Cup 2023

1 matches recorded · Japan

Card Summary

Yellow Cards 1
Red Cards 0
Yellows / Game 1.00
Reds / Game 0.00

Cards by Half

1st Half Cards 1
2nd Half Cards 0
1H / Game 1.00
2H / Game 0.00

Home vs Away

Home Cards 0
Away Cards 1
Home / Game 0.00
Away / Game 1.00

Both Teams Booked

BTB Total 0 / 1
BTB % 0%
BTB 1H % 0%
BTB 2H % 0%

Over Yellow Cards

O 0.5
100%
O 1.5
0%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
100%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
0%
O 2.5
0%

Result Distribution

Home Win 100%
Draw 0%
Away Win 0%
100%
0%
0%
Home Draw Away

J-League 2023

13 matches recorded · Japan

Card Summary

Yellow Cards 39
Red Cards 1
Yellows / Game 3.00
Reds / Game 0.08

Cards by Half

1st Half Cards 18
2nd Half Cards 23
1H / Game 1.38
2H / Game 1.77

Home vs Away

Home Cards 20
Away Cards 21
Home / Game 1.54
Away / Game 1.62

Both Teams Booked

BTB Total 9 / 13
BTB % 69%
BTB 1H % 15%
BTB 2H % 46%

Over Yellow Cards

O 0.5
92%
O 1.5
85%
O 2.5
69%
O 3.5
38%
O 4.5
15%
O 5.5
0%

Over Cards - 1st Half

O 0.5
85%
O 1.5
46%
O 2.5
8%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
77%
O 1.5
62%
O 2.5
31%
O 3.5
8%

Over Home Team Cards

O 0.5
85%
O 1.5
62%
O 2.5
8%

Over Away Team Cards

O 0.5
77%
O 1.5
38%
O 2.5
31%

Result Distribution

Home Win 46%
Draw 31%
Away Win 23%
46%
31%
23%
Home Draw Away

J2-League 2023

4 matches recorded · Japan

Card Summary

Yellow Cards 5
Red Cards 0
Yellows / Game 1.25
Reds / Game 0.00

Cards by Half

1st Half Cards 2
2nd Half Cards 4
1H / Game 0.50
2H / Game 1.00

Home vs Away

Home Cards 2
Away Cards 4
Home / Game 0.50
Away / Game 1.00

Both Teams Booked

BTB Total 2 / 4
BTB % 50%
BTB 1H % 0%
BTB 2H % 25%

Over Yellow Cards

O 0.5
100%
O 1.5
25%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
50%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
75%
O 1.5
25%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
50%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
0%
O 2.5
0%

Result Distribution

Home Win 75%
Draw 0%
Away Win 25%
75%
0%
25%
Home Draw Away

Ybc Levain Cup 2023

4 matches recorded · Japan

Card Summary

Yellow Cards 4
Red Cards 0
Yellows / Game 1.00
Reds / Game 0.00

Cards by Half

1st Half Cards 2
2nd Half Cards 2
1H / Game 0.50
2H / Game 0.50

Home vs Away

Home Cards 1
Away Cards 3
Home / Game 0.25
Away / Game 0.75

Both Teams Booked

BTB Total 0 / 4
BTB % 0%
BTB 1H % 0%
BTB 2H % 0%

Over Yellow Cards

O 0.5
75%
O 1.5
25%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
50%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
50%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
25%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
50%
O 1.5
25%
O 2.5
0%

Result Distribution

Home Win 0%
Draw 25%
Away Win 75%
0%
25%
75%
Home Draw Away

J2-League 2022

7 matches recorded · Japan

Card Summary

Yellow Cards 5
Red Cards 1
Yellows / Game 0.71
Reds / Game 0.14

Cards by Half

1st Half Cards 2
2nd Half Cards 6
1H / Game 0.29
2H / Game 0.86

Home vs Away

Home Cards 5
Away Cards 3
Home / Game 0.71
Away / Game 0.43

Both Teams Booked

BTB Total 1 / 7
BTB % 14%
BTB 1H % 0%
BTB 2H % 14%

Over Yellow Cards

O 0.5
57%
O 1.5
14%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
29%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
57%
O 1.5
29%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
57%
O 1.5
14%
O 2.5
0%

Over Away Team Cards

O 0.5
29%
O 1.5
14%
O 2.5
0%

Result Distribution

Home Win 29%
Draw 14%
Away Win 57%
29%
14%
57%
Home Draw Away

J-League 2022

14 matches recorded · Japan

Card Summary

Yellow Cards 31
Red Cards 2
Yellows / Game 2.21
Reds / Game 0.14

Cards by Half

1st Half Cards 13
2nd Half Cards 20
1H / Game 0.93
2H / Game 1.43

Home vs Away

Home Cards 15
Away Cards 18
Home / Game 1.07
Away / Game 1.29

Both Teams Booked

BTB Total 5 / 14
BTB % 36%
BTB 1H % 7%
BTB 2H % 14%

Over Yellow Cards

O 0.5
86%
O 1.5
71%
O 2.5
36%
O 3.5
21%
O 4.5
7%
O 5.5
0%

Over Cards - 1st Half

O 0.5
57%
O 1.5
36%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
79%
O 1.5
43%
O 2.5
21%
O 3.5
0%

Over Home Team Cards

O 0.5
43%
O 1.5
36%
O 2.5
21%

Over Away Team Cards

O 0.5
79%
O 1.5
43%
O 2.5
7%

Result Distribution

Home Win 36%
Draw 7%
Away Win 57%
36%
7%
57%
Home Draw Away

Ybc Levain Cup 2022

1 matches recorded · Japan

Card Summary

Yellow Cards 1
Red Cards 1
Yellows / Game 1.00
Reds / Game 1.00

Cards by Half

1st Half Cards 3
2nd Half Cards 0
1H / Game 3.00
2H / Game 0.00

Home vs Away

Home Cards 0
Away Cards 3
Home / Game 0.00
Away / Game 3.00

Both Teams Booked

BTB Total 0 / 1
BTB % 0%
BTB 1H % 0%
BTB 2H % 0%

Over Yellow Cards

O 0.5
100%
O 1.5
0%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
100%
O 1.5
100%
O 2.5
100%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
100%
O 2.5
100%

Result Distribution

Home Win 100%
Draw 0%
Away Win 0%
100%
0%
0%
Home Draw Away

J2-League 2021

1 matches recorded · Japan

Card Summary

Yellow Cards 2
Red Cards 0
Yellows / Game 2.00
Reds / Game 0.00

Cards by Half

1st Half Cards 0
2nd Half Cards 2
1H / Game 0.00
2H / Game 2.00

Home vs Away

Home Cards 0
Away Cards 2
Home / Game 0.00
Away / Game 2.00

Both Teams Booked

BTB Total 0 / 1
BTB % 0%
BTB 1H % 0%
BTB 2H % 0%

Over Yellow Cards

O 0.5
100%
O 1.5
100%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
100%
O 1.5
100%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
100%
O 1.5
100%
O 2.5
0%

Result Distribution

Home Win 100%
Draw 0%
Away Win 0%
100%
0%
0%
Home Draw Away

J-League 2021

16 matches recorded · Japan

Card Summary

Yellow Cards 24
Red Cards 2
Yellows / Game 1.50
Reds / Game 0.13

Cards by Half

1st Half Cards 9
2nd Half Cards 17
1H / Game 0.56
2H / Game 1.06

Home vs Away

Home Cards 16
Away Cards 10
Home / Game 1.00
Away / Game 0.63

Both Teams Booked

BTB Total 5 / 16
BTB % 31%
BTB 1H % 0%
BTB 2H % 25%

Over Yellow Cards

O 0.5
69%
O 1.5
44%
O 2.5
31%
O 3.5
6%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
50%
O 1.5
6%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
50%
O 1.5
31%
O 2.5
19%
O 3.5
6%

Over Home Team Cards

O 0.5
63%
O 1.5
31%
O 2.5
6%

Over Away Team Cards

O 0.5
44%
O 1.5
19%
O 2.5
0%

Result Distribution

Home Win 38%
Draw 63%
Away Win 0%
38%
63%
0%
Home Draw Away

J-League 2020

8 matches recorded · Japan

Card Summary

Yellow Cards 16
Red Cards 1
Yellows / Game 2.00
Reds / Game 0.13

Cards by Half

1st Half Cards 5
2nd Half Cards 13
1H / Game 0.63
2H / Game 1.63

Home vs Away

Home Cards 7
Away Cards 11
Home / Game 0.88
Away / Game 1.38

Both Teams Booked

BTB Total 4 / 8
BTB % 50%
BTB 1H % 0%
BTB 2H % 25%

Over Yellow Cards

O 0.5
100%
O 1.5
75%
O 2.5
25%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
63%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
88%
O 1.5
63%
O 2.5
13%
O 3.5
0%

Over Home Team Cards

O 0.5
63%
O 1.5
25%
O 2.5
0%

Over Away Team Cards

O 0.5
88%
O 1.5
50%
O 2.5
0%

Result Distribution

Home Win 50%
Draw 50%
Away Win 0%
50%
50%
0%
Home Draw Away

J2-League 2020

12 matches recorded · Japan

Card Summary

Yellow Cards 26
Red Cards 0
Yellows / Game 2.17
Reds / Game 0.00

Cards by Half

1st Half Cards 8
2nd Half Cards 19
1H / Game 0.67
2H / Game 1.58

Home vs Away

Home Cards 12
Away Cards 15
Home / Game 1.00
Away / Game 1.25

Both Teams Booked

BTB Total 6 / 12
BTB % 50%
BTB 1H % 25%
BTB 2H % 33%

Over Yellow Cards

O 0.5
92%
O 1.5
75%
O 2.5
33%
O 3.5
17%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
33%
O 1.5
25%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
83%
O 1.5
50%
O 2.5
17%
O 3.5
8%

Over Home Team Cards

O 0.5
67%
O 1.5
33%
O 2.5
0%

Over Away Team Cards

O 0.5
75%
O 1.5
50%
O 2.5
0%

Result Distribution

Home Win 33%
Draw 33%
Away Win 33%
33%
33%
33%
Home Draw Away

Ybc Levain Cup 2020

1 matches recorded · Japan

Card Summary

Yellow Cards 0
Red Cards 0
Yellows / Game 0.00
Reds / Game 0.00

Cards by Half

1st Half Cards 0
2nd Half Cards 0
1H / Game 0.00
2H / Game 0.00

Home vs Away

Home Cards 0
Away Cards 0
Home / Game 0.00
Away / Game 0.00

Both Teams Booked

BTB Total 0 / 1
BTB % 0%
BTB 1H % 0%
BTB 2H % 0%

Over Yellow Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%
O 4.5
0%
O 5.5
0%

Over Cards - 1st Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Cards - 2nd Half

O 0.5
0%
O 1.5
0%
O 2.5
0%
O 3.5
0%

Over Home Team Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%

Over Away Team Cards

O 0.5
0%
O 1.5
0%
O 2.5
0%

Result Distribution

Home Win 100%
Draw 0%
Away Win 0%
100%
0%
0%
Home Draw Away

Match History

162 matches
Date Fixture Score Competition
31 Oct 2026 Mito Hollyhock vs Sanfrecce Hiroshima 0-3 1 1 J1 League
25 Oct 2026 Cerezo Osaka vs JEF United 2-2 5 0 J1 League
21 Oct 2026 Yokohama F. Marinos vs Tokyo Verdy 2-2 2 0 J1 League
17 Oct 2026 Sanfrecce Hiroshima vs Kyoto Sanga 3-0 2 0 J1 League
14 Oct 2026 Nagoya Grampus vs Fagiano Okayama 3-3 6 0 J-League Cup
4 Oct 2026 Tegevajaro Miyazaki vs Omiya Ardija 1-1 2 0 J2-League
29 Sep 2026 Roasso Kumamoto vs Kawasaki Frontale 0-1 3 0 J-League Cup
23 Sep 2026 Kashima Antlers vs Ventforet Kofu 3-1 1 0 Emperor Cup
19 Sep 2026 Yokohama F. Marinos vs Mito Hollyhock 2-0 5 0 J1 League
12 Sep 2026 Imabari vs Sagan Tosu 1-0 3 0 J2-League
6 Sep 2026 Vissel Kobe vs V-Varen Nagasaki 3-1 2 0 J1 League
29 Aug 2026 Kyoto Sanga vs Avispa Fukuoka 2-1 4 0 J1 League
26 Aug 2026 Fagiano Okayama vs Beluga Rosso Hamada 3-0 3 0 Emperor Cup
22 Aug 2026 Vanraure Hachinohe vs Vegalta Sendai 0-2 2 0 J2-League
15 Aug 2026 JEF United vs Machida Zelvia 0-4 3 0 J1 League
6 Jun 2026 JEF United vs Avispa Fukuoka 1-2 0 0 J1 100 Year Vision League
31 May 2026 Shimizu S-Pulse vs Yokohama F. Marinos 1-1 1 0 J1 100 Year Vision League
17 May 2026 Oita Trinita vs Tegevajaro Miyazaki 1-2 1 0 J2/J3 100 Year Vision League
10 May 2026 Shimizu S-Pulse vs Avispa Fukuoka 1-1 5 0 J1 100 Year Vision League
3 May 2026 V-Varen Nagasaki vs Nagoya Grampus 1-2 1 0 J1 100 Year Vision League
25 Apr 2026 Urawa Reds vs Yokohama F. Marinos 2-3 2 0 J1 100 Year Vision League
11 Apr 2026 Sanfrecce Hiroshima vs Shimizu S-Pulse 1-1 1 0 J1 100 Year Vision League
4 Apr 2026 Mito Hollyhock vs Kashima Antlers 1-1 5 1 J1 100 Year Vision League
22 Mar 2026 Cerezo Osaka vs Vissel Kobe 1-1 3 0 J1 100 Year Vision League
14 Mar 2026 Kashiwa Reysol vs Machida Zelvia 0-1 2 0 J1 100 Year Vision League
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Koei Koya Referee Stats & Card History

Koei Koya has officiated 162 matches across 6 competitions, averaging 2.25 yellow cards and 0.14 red cards per game (365 yellows and 22 reds in total). Active years in our database: 2020-2026. Competitions covered include J1 League, J2-League, J-League Cup, J1 100 Year Vision League, Emperor Cup, J2/J3 100 Year Vision League.

This page includes career competition breakdowns, most-officiated teams, per-season card rates, first/second half splits, home vs away cards, both-teams-booked percentages, over/under yellow card thresholds, and a full match-by-match card history for Koei Koya.

All statistics for Koei Koya and thousands of other football referees are available via the OddAlerts Football Data API. Track referee appointments, build card market models, and access historical data programmatically.