Frank Willenborg
Over the last 10 Bundesliga games Frank Willenborg has officiated, the average is 4.60 cards a match — 12% above the league average of 4.09. That splits 4.4 yellow and 0.2 red a game — a red in 2 of the 10. The away side sees more cards — 2.7 to 1.9 a game, a sharper split than the league's 0.2 gap. 5+ cards landed in 60% of those games (6 of 10), from a 22.5% foul-to-booking rate. Penalties come at about the league's rate: 15 awarded in 45 matches, 0.33 a game against a league average of 0.33. These are raw match figures from those games, not odds.
Match cards last 10 games
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 Frank Willenborg turns into bookings. Conversion, not the raw foul count, is where a referee's real card tendency lives. Career figures across every Bundesliga season on record.
| Measure | Willenborg | League avg |
|---|---|---|
| Cards / match | 4.73 | 4.09 |
| vs league | 1.16× | 1.00× |
| Foul-to-card conversion | 21.5% | 18.5% |
| Fouls / match | 22.0 | 22.1 |
| Penalties awarded / match | 0.33 | 0.33 |
| Penalties awarded (total) | 15 in 45 | — |
| Red cards shown | 7 | — |
| Matches on record | 45 (10 in 25/26) | — |
Recent matches
The last 8 Bundesliga games Frank Willenborg took charge of — the actual card and foul counts a match-cards line settles on.
| Match | Score | Cards | Y | R | Pen | Fouls |
|---|---|---|---|---|---|---|
| Borussia M'gladbach v TSG Hoffenheim16 May | 4–0 | 10 | 9 | 1 | 0 | 26 |
| FC Bayern München v 1. FC Heidenheim2 May | 3–3 | 5 | 5 | 0 | 0 | 13 |
| 1. FC Köln v RB Leipzig8 Feb | 1–2 | 5 | 5 | 0 | 0 | 20 |
| SV Werder Bremen v TSG Hoffenheim27 Jan | 0–2 | 5 | 4 | 1 | 0 | 17 |
| VfL Wolfsburg v FC St. Pauli14 Jan | 2–1 | 3 | 3 | 0 | 1 | 19 |
| Eintracht Frankfurt v FC Augsburg13 Dec | 1–0 | 5 | 5 | 0 | 0 | 24 |
| 1. FC Heidenheim v Borussia M'gladbach22 Nov | 0–3 | 2 | 2 | 0 | 1 | 25 |
| VfL Wolfsburg v TSG Hoffenheim2 Nov | 2–3 | 2 | 2 | 0 | 0 | 27 |
Frequently asked
How many cards does Frank Willenborg give per game?
Frank Willenborg averages 4.73 cards a game across 45 Bundesliga matches — 16% above the league average of 4.09. On a Frank Willenborg appointment, the model multiplies every player's booking chance by 1.16.
Is Frank Willenborg a strict referee?
Yes. The honest measure is foul-to-card conversion — the share of fouls that become bookings — and Frank Willenborg runs at 21.5% against a league average of 18.5%. Foul counts barely vary between officials; the rate at which a foul becomes a booking is where referees genuinely differ.
Does Frank Willenborg'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 Frank Willenborg's card rate?
It rests on 45 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, an opponent factor and de-vigging, and discounts its confidence for thin referee records, before flagging any card as value. 18+ — please gamble responsibly.