Referee research
Koei Koya
Officiated 30 finished matches
Per-match averages
Each average is worked out only from matches with data for that statistic; a match without data doesn't count as 0. The number below shows how many matches it's based on.
Card and penalty breakdown
These numbers are counted one by one from in-match event records. The averages above come from team totals; there the type of red card is unclear in most matches and penalties aren't tracked at all. This section separates straight reds from second yellows and counts penalties. Matches with event records: 28 (out of 30 officiated). A match without records doesn't enter this count; it isn't counted as “0 cards”.
Recent matches
Card and foul numbers from that match. Where a match has no data it shows “—”. The yellow / red / penalty columns come from match event records; a match without records shows “—”.
Last 3 seasons