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UEFA Champions League referee card profile
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Szymon Marciniak

UEFA Champions League referee25 matches on record17.3% conversion

Over the last 10 UEFA Champions League games Szymon Marciniak has officiated, the average is 4.30 cards a match — 9% above the league average of 3.94. That splits 4.1 yellow and 0.2 red a game — a red in 1 of the 10. The home side sees more cards — 2.1 to 2.2 a game, flatter than the league's 0.4 gap. 5+ cards landed in 30% of those games (3 of 10), from a 17.1% foul-to-booking rate. These are raw match figures from those games, not odds.

Last games
max 25 on record

Match cards last 10 games

Bet line
MarketHit ratePer gameModel
These are Szymon Marciniak's own match figures — the raw card and foul counts from the matches covered. They're not adjusted for how aggressive the two teams are or whether it's a derby. The model layers those in — the referee tendency, each player's booking rate and an opponent card-induction factor — to price a specific leg. That combined verdict is the locked price and edge.
last 10

Career profile

The two numbers that matter are vs league — the multiplier the model applies to a player's booking chance — and conversion, the share of fouls Szymon Marciniak turns into bookings. Conversion, not the raw foul count, is where a referee's real card tendency lives. Career figures across every UEFA Champions League season on record.

MeasureMarciniak League avg
Cards / match4.28 3.94
vs league1.09× 1.00×
Foul-to-card conversion17.3% 17.9%
Fouls / match24.7 22.0
Red cards shown4—
Matches on record25 (4 in 25/26)—

Recent matches

The last 8 UEFA Champions League games Szymon Marciniak took charge of — the actual card and foul counts a match-cards line settles on.

MatchScoreCardsYRFouls
FC Porto v Man City8 Sep 0–2 4 4 0 27
SSC Napoli v Qarabağ FK25 Nov 2–0 4 4 0 24
Man City v Borussia Dortmund5 Nov 4–1 3 3 0 28
Newcastle v Benfica21 Oct 3–0 2 2 0 23
Borussia Dortmund v Athletic Club1 Oct 4–1 3 3 0 29
Inter v FC Barcelona6 May 4–3 7 7 0 24
Atlético Madrid v Real Madrid12 Mar 1–0 8 8 0 27
AC Milan v Feyenoord18 Feb 1–1 7 2 red 5 2 21

● a red card in that match

Frequently asked

How many cards does Szymon Marciniak give per game?

Szymon Marciniak averages 4.28 cards a game across 25 UEFA Champions League matches — 9% above the league average of 3.94. On a Szymon Marciniak appointment, the model multiplies every player's booking chance by 1.09.

Is Szymon Marciniak a strict referee?

No — slightly more lenient than most. The honest measure is foul-to-card conversion — the share of fouls that become bookings — and Szymon Marciniak runs at 17.3% against a league average of 17.9%. Foul counts barely vary between officials; the rate at which a foul becomes a booking is where referees genuinely differ.

Does Szymon Marciniak's record change bet builder card prices?

It should. The referee is the single biggest factor in the to-be-carded market, and the appointment is public before kick-off — so a strict official on a combative player is the archetypal card edge. The player cards guide walks through exactly how the model turns a tendency like this into a price.

How reliable is Szymon Marciniak's card rate?

It rests on 25 career matches, a solid record. The model shrinks a referee's tendency toward the league average when the sample is thin and discounts its own confidence for officials with young records, so a number like this never gets trusted beyond what the evidence earns.

Rates shown are figures from public match data for context; the model adds shrinkage and an opponent factor, and discounts its confidence for thin referee records, before flagging any card as value. It compares against the bookmaker's price as offered — card markets are priced one side only, so that price still carries the bookmaker's margin. 18+ — please gamble responsibly.