Bet types explained: singles, accumulators, systems and more
Choosing the format of a slip matters as much as choosing the match: the same prediction can be a measured bet or a lottery ticket depending on how you build it. This guide covers the most common bet types with invented odds, purely to show how each is calculated. If the sports section is available to you at Fortunazo, the bet slip lets you switch between these formats as you add selections.
Single
One selection on one event. Win and you are paid the odds times your stake; lose and the stake is gone. It is the most transparent way to bet and the best way to learn. Hypothetical example: 10 units at 2.10 return 21 units in total if the selection wins.
Accumulator (parlay)
Several selections on one slip. The odds multiply together, but a single wrong pick loses everything. Hypothetical example with three selections at 1.80, 1.90 and 2.00: combined odds are 1.80 × 1.90 × 2.00 = 6.84, so a 5-unit stake returns 34.2 units if all three land. It looks attractive, yet the bookmaker's margin multiplies too — each leg adds its own, so an accumulator is noticeably more expensive than three singles.
System bet
A system splits your stake across several smaller accumulators on the same slip. A "2 from 3" system on three selections creates three doubles: A+B, A+C and B+C. With 3 units in total, each double carries 1 unit. Miss one selection and one double still pays: using the odds above, landing A and B but missing C leaves only A+B, returning 1 × 1.80 × 1.90 = 3.42 units. Systems cushion mistakes in exchange for a smaller maximum return.
Handicap
Handicaps balance an uneven contest by giving one side a virtual head start or deficit. European handicaps keep the draw as a possible outcome; Asian handicaps use lines such as -0.5, -1 or -0.25 to remove the draw or split the stake in half. With Asian -0.25, half the stake goes on -0.5 and half on 0: if the match is drawn, you lose one half and get the other half back.
Over/under
A bet on whether a total — goals, points, games or runs — goes above or below a line. Lines ending in .5 cannot push; whole-number lines can land exactly on the number and refund the stake. It is a useful market when you have a view on the pace of a game but not on who wins.
Which to choose for your budget
New to betting? Stick to singles with a small fixed stake. Long accumulators are fun, but treat them as low-stake bets that will usually lose. Systems make sense when you want to combine selections without needing every one to land. Whatever the format, check the potential return on the slip before confirming. Sport-specific guides: football betting and tennis betting; limits and warning signs: responsible gambling.
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