Champions League Referee Card Stats 2026/27: Who Cards Most

Matchday 2 of the league phase kicks off on 13 and 14 October 2026, and the referee column is the one input on most bet slips that nobody has checked. It matters more here than at home: the Champions League referee card stats in our dataset average 3.93 yellows per game against the Premier League's 3.35, and the 22 officials with a real European sample range from 2.00 to 4.65. That is a spread of more than two and a half cards a match inside one competition. This guide gives you the card rate, booking points, over rates, half time split, away share and penalty rate for every official who has one, plus a plain statement of which officials we will not quote and why. The numbers come from our own dataset of 560 Champions League matches across the 2024/25 and 2025/26 campaigns, with minute level event data on all 560, which is what makes the half splits possible at all. Where a record is split across two source spellings we leave the cell blank, because adding the halves is how a 5 match referee gets quoted as a 10 match referee.

Champions League card baselines, and why a domestic prior fails

Start with the competition, not the official. A card rate only means something against the baseline of the games being refereed, and European baselines are not domestic ones.

Three things there are worth money. The Champions League sits 0.58 yellows per game above the Premier League and 0.66 above the Championship, so an English reputation imported into a European tie is biased low from the first whistle. The Europa League is hotter still at 4.22, the opposite of what most assume about a competition with lower stakes. And the World Cup is the quietest we track at 2.93, so the summer tournament a referee just worked says almost nothing about a league phase night.

The over 3.5 column is the one to carry forward. A 10 point gap between Europe's 56 percent and England's 46 percent is the difference between a coin flip and a line that is comfortably odds against. Our guide to booking points explains why that metric, 44.5 in Europe against 37.0 at home, moves faster than a card count when a red is involved.

Champions League referee card stats: the full table

Here is the whole leaderboard: every official with at least 10 Champions League matches, ranked by yellows per game. I use 10 as the floor because below it a single bad tempered tie moves an average by half a card.

The names at the top are not the ones a domestic bettor would guess. Daniel Siebert at 4.65 and Michael Oliver at 4.63 lead the competition, and Oliver's European rate is a full card above the Premier League average he is usually judged against. Felix Zwayer's 60.8 booking points is the highest on the board, driven by reds at 0.62 per game against an average of 0.21.

At the other end, Alejandro Hernandez has gone over 3.5 cards in 2 of his 10 matches and averages exactly 2.00 yellows, with Glenn Nyberg barely busier on 2.92. Those two are the cheapest unders on the page and the likeliest to be mispriced, because nothing in a European broadcast tells a casual bettor that a Swedish or Spanish official runs light.

Both teams booked is the column I would read second: it spans 40 to 100 percent, and the three above 92 percent, Tobias Stieler, Szymon Marciniak and Felix Zwayer, make that market close to a formality. Our both teams booked strategy guide works through the pricing, and the live table sits on the Champions League referee page.

The 18 officials who worked Matchday 1, and what we actually know

UEFA named 18 referees for the Matchday 1 fixtures of 8, 9 and 10 September 2026, listed on UEFA's own appointments page. That list is the honest test of a referee dataset: a real set of officials rather than a convenient one.

Six of the eighteen clear the 12 match bar I would size a full position on, and thirteen have a record of some length. Two have no Champions League matches at all, Nenad Minaković and Willy Delajod, whose European experience is in the Europa League, which is a hotter baseline than the competition they were appointed to.

The last three are the interesting ones. Luís Godinho, Jesús Gil Manzano and Halil Umut Meler each appear in our source data under more than one spelling, so their matches are split across two entities. We could add the halves together and publish a tidier table. We do not, because a merge we cannot confirm is how a referee table quietly doubles a sample, and our methodology sends an uncertain match to a review queue instead.

So Matchday 2 reads narrower than it looks. On a Schärer, Marciniak, Oliver, Massa, Eskås or Nyberg appointment you have a usable prior. On the other twelve you have a direction at best.

Two thirds of Champions League cards arrive after the break

This is the finding I did not expect to be unanimous. All 22 officials on the leaderboard show more than half their cards after half time, and the competition runs 35.4 percent before the break against 64.6 percent after it.

The range runs from 55.2 percent for Felix Zwayer up to 76.1 percent for Ivan Kružliak, roughly three cards after the break for every one before it across 11 matches, with Maurizio Mariani and José Sánchez just behind on 71 percent.

Two consequences follow. A first half card line is thinner than its price implies, because only about a third of the match's cards are available to it. And a second half over is where a strict official's tendency actually lands, which is also where in play prices are slowest to catch up after 45 quiet minutes. The mechanism is not mysterious: fatigue, substitutions and a scoreline that has started to matter arrive together, and Law 12 gives a referee more to act on as the game stretches.

The away side collects more than half the cards

The same table carries the away share column, and it leans the same way almost everywhere. 18 of the 22 officials send more than half their cards to the away team, against a competition average of 53.6 percent.

Danny Makkelie is the clearest case at 64.3 percent, with Tobias Stieler on 63.0 and Istvan Kovacs on 60.8. Marco Guida is the one genuine exception at 38.7 percent, which on 10 matches I would treat as interesting rather than settled.

The use is simple. When the market offers a team specific version of a card line, the away team's version is usually the better priced expression of the same opinion, because the tilt is real and small enough that bookmakers price team card lines off the fixture rather than the official. Our guide on how card markets are priced covers how those lines get built.

Penalties are the least reliable number on this page

The penalties per game column is the widest spread in the dataset and the one I trust least. It runs from 0.10 per game for Slavko Vinčić up to 0.93 for Szymon Marciniak, a nine fold difference, against an average of 0.43.

I am printing it because nobody else publishes it, and warning about it in the same breath. Penalty counts are small absolute numbers, so Marciniak's figure rests on 13 penalties across 14 matches, and a penalty depends far more on what happens in the box than on a referee's threshold, so even a true difference is mostly fixture noise.

Treat it as a tiebreaker. If you already like a penalty adjacent market and the official tops that column, it is a small nudge. If it is your reason for the bet, you are betting on 13 events. The same caution applies to red cards, where Zwayer's 0.62 per game sits on 13 matches, and our guide on VAR stats covers how review decisions distort these counts.

The same whistle, two very different rates

The habit worth breaking is quoting a referee's domestic average when they are appointed to a European tie. I expected a clean Europe effect, a fixed amount to add. There is no such number.

Across the 13 officials with at least 8 matches in both the Champions League and a domestic league, the median difference is 0.01 yellows per game. Seven go up in Europe and six go down. On the average there is no effect at all.

The range is the story. Serdar Gözübüyük cards 1.59 more per game in Europe than in the Eredivisie, and Alejandro Hernandez cards 3.00 fewer in Europe than in La Liga. Michael Oliver is plus 1.41, Daniel Siebert plus 1.33, João Pedro Pinheiro minus 1.34. The honest error bar on a domestic to European transfer is over a card a game in either direction, wider than the thing you are trying to predict.

Two caveats, both real. Several domestic samples are one season deep, and the Premier League rows draw on 21 seasons of match records from football-data.co.uk while the European rows draw on two. The conclusion survives both: use the competition specific figure where one exists. Our Premier League referee card stats guide is the domestic companion.

Turning a Champions League referee read into a priced bet

A card rate is an input, not a bet. Here is the sequence, with Daniel Siebert as the worked example.

1. Use the over rate, not the average. Siebert goes over 3.5 cards in 71 percent of his 17 Champions League matches. An average of 4.65 does not tell you that, and an over rate is already a probability.
2. Convert it to fair odds. 71 percent implies 1.41 in decimal terms, so anything from about 1.50 upward on over 3.5 cards carries an edge on the referee read alone.
3. Anchor on the competition, not the country. The baseline you adjust from is the Champions League's 56 percent, not the 46 percent you would use in England.
4. Put it in the right half. With 65.5 percent of Siebert's cards arriving after the break, a second half over is the cleaner expression and a first half over is the one to leave alone.
5. Size by sample. 17 matches supports a position. Four does not, and a split name supports nothing.

Step three is where most referee content goes wrong: it stops at the average and never changes the baseline. Our appointments tracker shows who has which fixture, and reading the sheet early is its own edge, covered in our guide on referee appointment news.

What to watch as the 2026/27 sample builds

Everything above is a prior built on two completed seasons. The 2026/27 league phase is the evidence, and three questions settle against it by the final matchday on 27 January 2027.

Does the second half skew hold? A unanimous finding across 22 officials is strong, but the 36 team league phase is only in its third year. If the skew softens, first half markets get fairer.

Do the thin records fill in? Twelve of the Matchday 1 eighteen sit under 12 matches. Eight league phase rounds plus knockouts will push several over that bar, and the ones to watch are Serdar Gözübüyük and Rade Obrenovič, both above 5.30 yellows per game on 9 matches that are either real or about to regress.

Do the split names get resolved? Three of the eighteen cannot be quoted today. They sit in our review queue awaiting the exact source spellings, and will be published as one entity or stay as two, never guessed into one.

Figures cover 560 Champions League matches from the 2024/25 and 2025/26 campaigns in the RefOdds dataset, with minute level event data on all 560 and foul counts on 452. The 2026/27 season builds into these numbers as its matches are ingested. Some officials are stored under an abbreviated source name, S Vinčić for Slavko Vinčić among them, because that is how the match records spell them. Those are matched by surname and initial within competition context, and where that rule cannot settle a name the figure is withheld rather than merged.