Kamphuis, Jochem
Kamphuis, Jochem has not taken charge of an Eredivisie match in 26/27. The figures below are a career record. Over the last 10 Eredivisie games Kamphuis, Jochem has officiated, the average is 3.80 cards a match — 19% above the league average of 3.19. That splits 3.7 yellow and 0.1 red a game — a red in 1 of the 10. The home side sees more cards — 1.8 to 2.0 a game, flatter than the league's 0.4 gap. 5+ cards landed in 40% of those games (4 of 10), from a 17.5% 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 Kamphuis, Jochem turns into bookings. Conversion, not the raw foul count, is where a referee's real card tendency lives. Career figures across every Eredivisie season on record.
| Measure | Jochem | League avg |
|---|---|---|
| Cards / match | 3.33 | 3.19 |
| vs league | 1.04× | 1.00× |
| Foul-to-card conversion | 15.6% | 15.4% |
| Fouls / match | 21.4 | 20.7 |
| Red cards shown | 4 | — |
| Matches on record | 33 (0 in 26/27) | — |
Recent matches
The last 8 Eredivisie games Kamphuis, Jochem took charge of — the actual card and foul counts a match-cards line settles on.
| Match | Score | Cards | Y | R | Fouls |
|---|---|---|---|---|---|
| Heracles Almelo v NAC Breda2 Nov | 2–0 | 2 | 2 | 0 | 28 |
| Fortuna Sittard v AZ Alkmaar6 Oct | 1–0 | 6 | 6 | 0 | 20 |
| RKC Waalwijk v AFC Ajax29 Sep | 0–2 | 3 | 3 | 0 | 15 |
| NEC Nijmegen v Heracles Almelo21 Sep | 1–2 | 7 | 7 | 0 | 31 |
| FC Twente v PEC Zwolle14 Sep | 1–1 | 2 | 2 | 0 | 24 |
| Sparta Rotterdam v AZ Alkmaar2 Mar | 1–1 | 2 | 2 | 0 | 23 |
| FC Utrecht v Heracles Almelo23 Feb | 1–0 | 5 | 5 | 0 | 24 |
| NEC Nijmegen v FC Volendam5 Nov | 3–3 | 6 1 red | 5 | 1 | 17 |
● a red card in that match
Frequently asked
How many cards does Kamphuis, Jochem give per game?
Kamphuis, Jochem averages 3.33 cards a game across 33 Eredivisie matches — 4% above the league average of 3.19. On a Kamphuis, Jochem appointment, the model multiplies every player's booking chance by 1.04.
Is Kamphuis, Jochem a strict referee?
About average. The honest measure is foul-to-card conversion — the share of fouls that become bookings — and Kamphuis, Jochem runs at 15.6% against a league average of 15.4%. Foul counts barely vary between officials; the rate at which a foul becomes a booking is where referees genuinely differ.
Does Kamphuis, Jochem'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 Kamphuis, Jochem's card rate?
It rests on 33 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.