Guide · 7 min read
Corners and cards betting explained
Corner and card markets let you bet on how many corners are taken or how many cards are shown in a match. They look like simple over/under bets, but bookmakers count corners and cards in different ways. For anyone combining two bookmakers in a sure bet, those differences are the main risk. This guide explains the rules, the limits and what to check first.
Updated 22 October 2026
Contents
The usual markets
Most bookmakers offer the same families of markets for corners and cards:
- Total corners over/under, for example over 9.5 corners in the match.
- Corner handicap and corner 1X2: which team wins more corners.
- Team corners, first corner, race to 5 corners, corners in each half.
- Total cards over/under, counted as a number of cards or in booking points.
- Player to be carded, first card, team with most cards.
Over/under on corners and cards works like over/under on goals: with a line such as 9.5 there is no push, with a whole line such as 10 the stake is returned if exactly 10 are counted.
How corners are counted
A corner kick is awarded when the ball goes over the goal line after last touching a defender. That sounds clear, but betting rules add details:
- Awarded or taken? Many bookmakers count only corners that are actually taken. A corner awarded just before the half-time or full-time whistle and never taken then does not count. Others count corners awarded.
- Retaken corners normally count once.
- Extra time: as with goals, most corner markets cover 90 minutes plus stoppage time only.
- Data source: bookmakers settle on their own official data provider. On rare occasions providers disagree, and the bookmaker's source is final.
How cards are counted
Card markets have even more variants. Two common counting systems are:
| System | Yellow | Straight red | Second yellow, then red |
|---|---|---|---|
| Cards (number) | 1 | 2 | Often 1 + 2 = 3, the second yellow itself ignored |
| Booking points | 10 | 25 | Often 10 + 25 = 35, a maximum of 35 per player |
These are typical conventions, not a standard. Other questions the rules must answer:
- Cards to non-players: since the 2019/20 Laws of the Game, referees can show yellow and red cards to coaches and other team officials. Some bookmakers count them, many count only players on the pitch, and some also count substitutes on the bench.
- Cards after the final whistle (for example in a tunnel incident) are usually ignored.
- Rescinded cards: a card later cancelled on appeal normally still counts, because settlement is based on the match itself.
- Extra time is usually excluded, as with goals and corners.
Lower limits and wider prices
Corners and cards are secondary markets. Bookmakers price them with less data and less competition than 1X2 or goal lines, so they protect themselves in two ways:
- Lower maximum stakes: the most you can bet on a corner line is often a fraction of what is accepted on the match result. Your second leg may be cut or refused.
- Higher margins: typical over/under prices such as 1.85 / 1.85 add up to 108.1% (1/1.85 + 1/1.85 = 0.5405 × 2), compared with around 104-105% on many main markets.
Prices can also be slow to react to team news or the referee appointment, which is why arbs appear here more often than in main markets. Accounts that only bet on these soft spots tend to get limited sooner; see bookmaker limits.
Why arbs here carry settlement risk
In a sure bet you back opposite sides at two bookmakers. That only works if both use the same counting rule. If they do not, a single event in the match can make both bets lose.
Bookmaker A offers over 9.5 corners at 2.10, bookmaker B under 9.5 at 1.98. 1/2.10 + 1/1.98 = 0.4762 + 0.5051 = 0.9812, about 1.9% below 100%. With €100: €48.53 on over and €51.47 on under, returning about €101.91 either way.
Now the match has 10 corners awarded, but the last one is awarded in stoppage time and the referee blows the final whistle before it is taken. Bookmaker A counts corners taken: 9, so over loses. Bookmaker B counts corners awarded: 10, so under loses. Result: −€100 instead of +€1.91.
Over 4.5 cards at 2.05 at bookmaker A and under 4.5 at 2.00 at bookmaker B: 0.4878 + 0.5000 = 0.9878, a 1.2% arb on paper.
The match ends with four yellow cards for players and one yellow card for a coach. Bookmaker A counts players only: 4, so over loses. Bookmaker B counts all cards shown: 5, so under loses. Both bets are lost.
These cases are rare, but a 1-2% edge needs dozens of bets to cover one total loss. That is why corner and card arbs need a rule check that goes beyond the market name. When a settlement looks wrong rather than just different, the bookmaker's complaints process is covered in bookmaker won't pay out.
Checklist before you bet
Read the "betting rules" or "sport rules" section of both bookmakers for football and check:
- Are corners counted when awarded or only when taken?
- Do cards count as a number or as booking points, and with which values?
- How is a second yellow followed by red counted, and is there a maximum per player?
- Do cards to coaches, staff or substitutes count?
- Are cards after the final whistle included?
- Is extra time included? (Usually no.)
- What happens on abandonment: void, or settled if the line is already passed?
- What is the maximum stake on this market, so your second leg is not cut?
Our guide to bookmaker terms to check covers the general sections, and overtime betting rules explains the extra-time question across sports. If one leg of an arb is placed and the other fails, see what to do when an arbitrage leg fails.
Frequently asked questions
Do corners that are not taken count?
It depends on the bookmaker. Many count only corners that are actually taken, so a corner awarded just before the final whistle does not count. Others count corners awarded. This difference can settle two sides of an arb differently.
How do booking points work?
A common system counts 10 points for a yellow card and 25 for a red card, with a maximum of 35 points per player, so a second yellow followed by red counts 35. Values and maximums differ between bookmakers, so always check the rules.
Do cards shown to coaches count in card bets?
Some bookmakers count cards to coaches and team officials, many count only players on the pitch. Referees have been allowed to show cards to team officials since the 2019/20 Laws of the Game, so this question comes up regularly.
Are corner and card arbs safe?
No sure bet is free of risk, and these markets add settlement risk. If the two bookmakers count corners or cards differently, one event can make both bets lose. Limits are also lower, so the second leg may be cut.
Sources
- IFAB: Laws of the Game, Law 17 (the corner kick)
- IFAB: Laws of the Game, Law 12 (fouls and misconduct, cards to team officials)
- Wikipedia: Corner kick
- Wikipedia: Mathematics of bookmaking
- Tipico: terms and betting rules (example of a bookmaker rules page)
As of October 2026. Counting rules differ between bookmakers and can change; your bookmaker's betting rules are what counts. All figures are worked examples with the stated odds.
Not betting, legal or tax advice. 18+. Betting involves risk and no profit is guaranteed: odds change, bets get voided and accounts get limited. Only bet money you can afford to lose. Our responsible gambling page lists free help, and the disclaimer applies.