Key points
- An accumulator multiplies the odds of its legs, and one losing leg loses the whole bet slip.
- The bookmaker’s margin is taken on every leg, so it compounds as the acca gets longer.
- Acca insurance refunds a stake when one leg cuts the slip; a boost adds a percentage to a win. Neither changes how often an acca lands.
- A booking code only saves selections. It carries no extra chance of winning.
Accumulator betting is one stake carried across several selections: the return of the first leg becomes the stake of the second, and so on to the last. That is why the odds multiply, and why a single wrong result ends the bet. In Nigeria the acca is the weekend bet slip, a row of football fixtures on one ticket.
How acca odds multiply
Acca odds multiply leg by leg. Multiply the decimal odds of every selection, then multiply the result by your stake. 22Bet’s rules put the whole bet in two sentences: the stake is multiplied by the odds of all selections, and if one leg fails the bet is lost.
Worked example
A four-leg acca
- Leg 1: home win
- 1.80
- Leg 2: GG
- 2.10
- Leg 3: over 2.5
- 1.65
- Leg 4: away win
- 2.40
- Combined odds
- 1.80 × 2.10 × 1.65 × 2.40 = 14.9688, shown as 14.97
- Return on ₦500
- ₦500 × 14.9688 = ₦7,484.40
All four must win. If three win and one loses, the return is nothing and the ₦500 stake is gone.
The same four bets placed as singles of ₦125 each would return money on every winner. The acca pays more because it asks for more: every extra leg is another way to lose. A cancelled leg is the exception. 22Bet’s rules leave such a leg out of the settlement, so the slip pays at the odds of the legs that remain.
How often an acca lands
How often an acca lands follows from the same multiplication. Odds of 2.00 stand for about one chance in two, and 1.50 for about two in three. Multiply the chances as you multiplied the odds and the picture changes quickly.
| Legs | Combined odds | Chance that all legs win, at most |
|---|---|---|
| 2 | 2.56 | 39.1% |
| 4 | 6.55 | 15.3% |
| 6 | 16.78 | 6.0% |
| 8 | 42.95 | 2.3% |
| 10 | 109.95 | 0.9% |
Swipe sideways to see every column.
The chance shown is the one the odds imply. It includes the bookmaker’s margin, so the true chance is lower still.
A long acca of short-priced favourites feels safe leg by leg and is a long shot as a whole.
Why margins compound
Margins compound because a bookmaker prices every game slightly under its fair value, and that gap is the margin. On a single it costs you a few per cent. On an acca the gap sits in every leg and the legs are multiplied, so the cost multiplies too.
Worked example
The same acca at two prices
- Fair price per leg
- 2.00
- Bookmaker’s price per leg
- 1.88
- Five legs at the fair price
- 32.00
- Five legs at the bookmaker’s price
- 23.48
- Return on ₦1,000
- ₦23,485 instead of ₦32,000
- Share of the fair return you get
- 73.4%
A gap of 6% on each leg has become a gap of 27% on the slip. The prices are an illustration.
The guide to how betting odds work shows how to measure the margin in a price. A slip also pays more where the same legs are priced higher, so the bookmaker you place it with changes the return.
When one leg cuts the slip: acca insurance
Every punter knows the slip that ‘cut one’: every result right but one, and nothing back. Acca insurance is the offer built on that moment. If exactly one leg loses, the bookmaker refunds the stake. Its terms set how the refund is paid, in cash or as a free bet, the most it refunds, and the legs and minimum odds the slip needs.
Read two things in those terms. A stake refunded as a stake-not-returned free bet pays only the profit when it wins, so it is worth less than the same sum in cash. And insurance covers one losing leg only: two wrong and it pays nothing.
Acca boost or acca insurance?
| Acca boost | Acca insurance | |
|---|---|---|
| Pays when | Every leg wins | Exactly one leg loses |
| What you get | A percentage added to the odds or to the net win | The stake back, in cash or as a free bet |
| How the size is set | A flat rate, or a scale that rises with the number of legs | The stake you placed, up to the offer’s cap |
| Chance that the acca wins | Unchanged | Unchanged |
Swipe sideways to see every column.
A boost rewards the rare slip that lands; insurance softens the common one that just misses. Both are worth having on an acca you would have placed anyway, and neither is a reason to add legs. The acca boosts list compares the offers, and a worked boost payout shows what one adds in naira.
Booking codes on an acca
A booking code stores an acca so that the same bookmaker can load it again. Codes are shared widely, and that is where the trouble starts: a code from a tipster is somebody’s opinion, saved. It has the same margin on every leg and the same chance of losing as if you had picked the games yourself. Loading a shared code changes nothing about the selections on it. Anyone selling ‘sure’ codes or fixed matches is running a scam.
Staking an acca sensibly
- Decide the weekly amount first, and treat an acca stake as spent the moment you place it.
- Keep the slip short: three legs you believe in beat eight you added for the payout.
- Do not chase a slip that cut one with a bigger one.
- Price the same legs at more than one bookmaker before you place them. The table of the best betting sites in Nigeria gives each sportsbook’s score for odds and market range.
18 and over only
Accas are entertainment with a cost. Bet only what you can afford to lose.
Work out the return of a slip before you stake it: multiply the odds, then multiply by the stake. A sportsbook with cash out lets you settle an acca before the last leg is played.
Two slips work on other sums. A system bet splits the same picks into several smaller accas. A bet builder on one match is priced as a whole, so its legs do not simply multiply.
Accumulator offers at listed bookmakers
| Site | Accumulator offer | Visit |
|---|---|---|
| Paripesa | 10% higher overall odds on Accumulator Of The Day | Visit Paripesa |
| Mostbet | Accumulator booster on accas of 4+ selections | Visit Mostbet |
| BetWinner | Accumulator of the Day: 10% added to the odds | Visit BetWinner |
| 1win | Express bonus: 7% to 15% added to the net win of an acca of 5+ selections | Visit 1win |
| Linebet | Accumulator of the Day: overall odds raised by 10% (linebet.com) | Visit Linebet |
| Melbet | Accumulator of the Day: odds boosted by 10% on Melbet’s ready-made accas (melbet.com) | Visit Melbet |
| BetFury | Combo Boost: up to 50% extra on combos of 4+ selections | Visit BetFury |
Swipe sideways to see every column.
18+. T&Cs apply. Each acca offer is the operator’s own. Check the legs, minimum odds and cap on its site before you place the slip.
What punters ask about accumulators
What is accumulator betting in simple terms?
One bet on several results at once. The odds of the legs are multiplied together, and every leg has to win for the bet to pay.
How do I work out acca odds?
Multiply the decimal odds of each leg. Four legs at 1.80, 2.10, 1.65 and 2.40 give combined odds of 14.97; multiply that by your stake for the return.
What does ‘cut one’ mean?
That one leg of the acca lost and the rest won. Under an acca insurance offer the bookmaker refunds the stake in that case, in cash or as a free bet.
Is an acca boost better than insurance?
They cover different outcomes: a boost adds to a winning acca, insurance refunds a near miss. Neither changes the chance that the acca lands.
Are long accas a good way to win big?
They pay big when they land and land rarely. Every added leg lowers the chance and adds another layer of margin.
Does a booking code improve my chances?
No. A booking code only loads saved selections. The odds and the risk are the same as on any other slip.
Next steps
Related guides
- BasicsHow betting odds work
- BonusesWagering requirements
Compare betting sites
Reviews
Accas are for adults aged 18 and over
A long slip loses far more often than it wins. Stake an amount you can lose every weekend, and never add legs to chase a payout.
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