William Collum
William Collum has not taken charge of a Scottish Premiership match in 26/27. The figures below are a career record. Over the last 10 Scottish Premiership games William Collum has officiated, the average is 4.00 cards a match — in line with the league average of 4.02. That splits 3.9 yellow and 0.1 red a game — a red in 1 of the 10. The home side sees more cards — 1.9 to 2.1 a game, flatter than the league's 0.3 gap. 5+ cards landed in 30% of those games (3 of 10), from a 16.9% foul-to-booking rate. 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 William Collum turns into bookings. Conversion, not the raw foul count, is where a referee's real card tendency lives. Career figures across every Scottish Premiership season on record.
| Measure | Collum | League avg |
|---|---|---|
| Cards / match | 3.58 | 4.02 |
| vs league | 0.89× | 1.00× |
| Foul-to-card conversion | 15.1% | 17.7% |
| Fouls / match | 23.8 | 22.7 |
| Red cards shown | 7 | — |
| Matches on record | 36 (0 in 26/27) | — |
Recent matches
The last 8 Scottish Premiership games William Collum took charge of — the actual card and foul counts a match-cards line settles on.
| Match | Score | Cards | Y | R | Fouls |
|---|---|---|---|---|---|
| Celtic v Rangers11 May | 2–1 | 4 1 red | 3 | 1 | 31 |
| Livingston v Ross County27 Apr | 2–0 | 2 | 2 | 0 | 26 |
| Motherwell v Hibernian13 Apr | 1–1 | 6 | 6 | 0 | 17 |
| Heart of Midlothian v Kilmarnock30 Mar | 1–1 | 4 | 4 | 0 | 17 |
| Motherwell v Aberdeen16 Mar | 0–1 | 3 | 3 | 0 | 23 |
| Motherwell v Celtic25 Feb | 1–3 | 3 | 3 | 0 | 17 |
| Hibernian v St. Mirren3 Feb | 0–3 | 6 | 6 | 0 | 27 |
| Livingston v Kilmarnock16 Dec | 0–0 | 3 | 3 | 0 | 28 |
● a red card in that match
Frequently asked
How many cards does William Collum give per game?
William Collum averages 3.58 cards a game across 36 Scottish Premiership matches — 11% below the league average of 4.02. On a William Collum appointment, the model multiplies every player's booking chance by 0.89.
Is William Collum a strict referee?
No — more lenient than most. The honest measure is foul-to-card conversion — the share of fouls that become bookings — and William Collum runs at 15.1% against a league average of 17.7%. Foul counts barely vary between officials; the rate at which a foul becomes a booking is where referees genuinely differ.
Does William Collum'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 William Collum's card rate?
It rests on 36 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.