Corners and Cards Predictions Explained

Corners and cards are the most popular football markets outside goals. They are built in a similar way to goal markets, from an expected count for each side, but they behave differently: they depend more on how a match unfolds, and cards depend heavily on one person, the referee. This guide explains how the predictions on our match pages are put together and what to watch for.

Expected corners

Each team’s expected corners come from its own record (corners won per game) and its opponent’s (corners conceded per game), at home or away as appropriate. Add the two sides together and you get the expected total, which in many leagues sits somewhere around 9 to 11 per match.

From the expected total the model works out the chance of going over or under each line. For a match with 10.2 expected corners, a simple Poisson calculation gives:

• over 9.5 corners: about 57%;
• over 10.5 corners: about 44%.

Notice how close both figures are to 50%. With an expected total near the line, corner markets are close to a coin toss, and only lines well away from the expected total give strong probabilities. That is why the suggested corner bets on our tips board are usually unders or overs on lines some distance from the expected total.

Why corners are harder than goals

Corner counts are more spread out than a simple model suggests. A lot depends on the course of the game:

• Game state. A team chasing a result pushes forward and tends to win more corners; a team protecting a lead tends to win fewer. An early goal can change the corner count more than the final score.
• Style. Sides that attack down the flanks and cross a lot win more corners than possession teams that play through the middle.
• Mismatches. A strong favourite can rack up a dozen corners against a deep defence, even in a 1-0.

For that reason a corner prediction carries more uncertainty than a goal prediction with the same headline number. On our match pages each corner and card tip carries its own confidence label, separate from the confidence of the main prediction.

Expected cards and booking points

Cards are predicted in the same way: each team’s yellow cards per game, adjusted for the opponent, gives an expected total. For a match with 4.2 expected yellow cards a simple Poisson calculation gives about 60% for over 3.5 and 41% for over 4.5.

Booking points combine yellows and reds into one number: on our pages 10 points per yellow card and 25 per red. Bookmakers’ rules differ in the details. Many cap a single player at 35 points, so a second yellow and the red that follows count 35 rather than 45, and most ignore cards shown to managers and coaching staff. Always check the rules of the market you are looking at.

The referee effect

No other market depends so much on one person. Referees differ widely in how readily they show cards: the gap between a lenient and a strict official in the same league can be two or more yellow cards per game. When we know the referee and they have enough games behind them, the match page shows their average yellow cards and fouls per game, and the preview mentions it.

Treat the referee figure with care. A handful of games is a small sample, and appointments are often announced late, so a prediction made earlier in the week may not include the referee at all.

Other things that move card counts

• Rivalry and stakes: derbies, relegation battles and knockout ties tend to produce more fouls and bookings.
• Mismatches: the weaker side often commits more tactical fouls, and its players collect more yellows.
• Competition: average card counts vary considerably between leagues, so a team’s record in one competition doesn’t transfer neatly to another.

Reading these markets on a match page

• Start with the expected totals for corners and cards in the preview or the stats tab.
• Compare the expected total with the line: the further apart, the stronger the probability.
• Check the referee’s record and the number of games behind it.
• Look at the shots, attacks and fouls in the team statistics. They explain where the corner and card averages come from.

For the goal side of the same matches, see both teams to score vs over/under.

18+. These figures are information, not betting advice. Please read our responsible gambling page.