Guide · 7 min read
Arbitrage betting markets: which bets really cover each other
A sure bet only works if your bets together cover every possible result. That is easy with two players in a tennis match and less obvious once you mix over/under, handicaps, draw no bet and double chance. This guide shows which markets pair up cleanly, which mixed pairs still cover everything, and which markets are best left alone.
Updated 22 October 2026
Contents
Two-way markets: win/win and over/under
Two-way markets have exactly two outcomes, and one of them always happens (voids aside). They are the simplest basis for sure bets:
- Match winner with no draw: tennis, volleyball, basketball, and ice hockey including overtime.
- Over/under on a half line, such as 2.5 goals. A result exactly on the line can't happen.
- Asian handicap on a half line, such as home −0.5 against away +0.5.
- Draw no bet on both teams: if the match is drawn, both bets are refunded.
- Both teams to score, yes or no.
Bookmaker A offers 2.08 on over 2.5 goals in a Premier League match, Bookmaker B 1.98 on under 2.5. S = 1/2.08 + 1/1.98 = 0.48077 + 0.50505 = 0.98582, about a 1.4% return.
With €500 you stake €243.84 on the over and €256.16 on the under. Either side pays about €507.19, roughly +€7, if both bets are accepted at these odds and stand.
What matters is that both sides mean the same playing time. Football over/under is almost always 90 minutes plus stoppage time; in ice hockey there are lines with and without overtime. You can check the example in the arbitrage calculator.
Three-way markets and their opposites
A 1X2 market can be covered with three bets, or with two if you use double chance as the opposite side:
| Bet | Opposite | Covers |
|---|---|---|
| Home win (1) | Double chance X2 | all three results |
| Draw (X) | Double chance 12 | all three results |
| Away win (2) | Double chance 1X | all three results |
Mathematically each of these pairs is a two-way sure bet: 1/odds of the bet + 1/odds of the opposite must be below 1. The classic version across three bookmakers, and the ice hockey trap, are in three-way arbitrage. The markets themselves are explained in draw no bet and double chance.
Handicap against handicap: same line, same rule?
With an Asian handicap (AH) one team gets a head start or a deficit in goals. A pair only covers everything if the lines are exact opposites: home −1 against away +1, home −0.25 against away +0.25.
- Half lines (−0.5, −1.5) have no push: one side wins, the other loses.
- Whole lines (0, −1) are refunded if the result lands exactly on the line. Both sides get their stakes back; the sure bet stays covered.
- Quarter lines (−0.25, −0.75) split the stake across two lines. Home −0.25 is half on home 0 and half on home −0.5.
An example with a whole line: you have home −1 at Bookmaker A and away +1 at Bookmaker B. If the home team wins by two or more, A wins. If it wins by exactly one, both bets are refunded: you have lost nothing, but gained nothing either. If the match is drawn or the away team wins, B wins. Every result is covered; only the push earns nothing.
A few equivalences help when you combine across markets: AH 0 is the same as draw no bet. AH home −0.5 is the same as a home win in 1X2. AH away +0.5 is the same as double chance X2. Be careful with the European (three-way) handicap, which UK bookmakers often just call "handicap": it has its own draw on the line and is not the same as an Asian handicap with the same number.
Mixed markets: when they really cover each other
You can combine different markets as long as together they cover every result. This matrix shows the most common football pairs:
| Bet A | Bet B | Covers? | Why |
|---|---|---|---|
| AH home −0.5 | Double chance X2 | Yes | Same outcomes, different name |
| Draw no bet home | AH away 0 | Yes | Both are AH 0 |
| Draw no bet home | Double chance X2 | Yes | On a draw X2 wins and DNB is refunded |
| Draw no bet home | Draw | No | If the away team wins, both lose |
| Over 2.5 | Under 3 | Yes, with a bonus | On exactly 3 goals the over wins and the under is refunded |
| Over 2.5 | Under 2 | No | On exactly 2 goals the over loses and the under is only refunded |
| 1X2 home (90 min.) | To qualify: away | No | Draw after 90 minutes, away team goes out: both lose |
The rule of thumb: run through every possible score once, 0–0, 1–0, 1–1, 2–1 and so on, and check for each that at least one bet wins or both are refunded. If there is a score where everything loses, it isn't a sure bet. Pairs "with a bonus", such as over 2.5 against under 3, are really small middles.
The "to qualify" trap is common in UK cup football: an FA Cup or League Cup tie that can go to extra time lists "match result" (90 minutes) right next to "to qualify" or "to lift the trophy". Read the market name, not just the team name.
Markets to avoid
- Player props such as goalscorer, shots or a player's points. If the player doesn't play or comes off early, bookmakers apply different void rules, so one bet is voided and the other settled (see goalscorer betting).
- Corners and cards. Bookmakers count from different data sources; with cards, a second yellow counts as one card at some and two at others, or booking points apply (see corners and cards).
- Specials and combined markets. Result plus goalscorer, half-time/full-time or bet builders with several conditions rarely have a clean opposite.
- Markets with unclear playing time. Anything that doesn't say clearly whether extra time or penalties count (see overtime betting rules).
Markets also play a part in limits. Many bettors report that regular bets on fringe markets and small leagues lead to restrictions faster than bets on main markets such as 1X2 or over/under 2.5 in big leagues. There is no guarantee either way; more in bookmaker limits.
Frequently asked questions
Can you combine different markets in a sure bet?
Yes, as long as the bets together cover every possible result and are settled over the same playing time. A home win against double chance X2 covers everything; draw no bet against the draw does not.
Is Asian handicap 0 the same as draw no bet?
Yes. With Asian handicap 0 and with draw no bet, the bet wins if your team wins, and you get your stake back if the match is drawn.
Which markets get limited faster?
In many bettors' experience, regular bets on fringe markets, player props and small leagues lead to limits sooner than bets on the main markets of big leagues. There is no fixed rule; each bookmaker decides for itself.
Sources
- IFAB: Laws of the Game, Law 7 (the duration of the match)
- Gemeinsame Glücksspielbehörde der Länder (GGL): permitted basketball betting markets (two-way, three-way, over/under) (in German)
- Regierungspräsidium Darmstadt: ice hockey betting markets (regulation time and including overtime) (in German)
As of October 2026. Bookmakers' rules, odds and offers change; their current terms and betting rules always apply.
Betting involves risk, even with sure bets: prices move, bets get voided, accounts get limited. Only use money you can do without. Our responsible gambling page lists free help.
Information, not betting, legal or tax advice. 18+.