Bet types explained: from singles to systems

The same match can be bet in many ways, and the format you choose changes your risk as much as the team you pick. This page explains the main bet types you will find in a typical sportsbook, including at platforms like 345bet. The exact menu of markets on offer depends on the event and on your account, so treat this as a map of formats rather than a list of what is available.

Singles

A single is one selection on one bet slip. If it wins, you are paid stake times odds; if it loses, only that stake is lost. Singles keep risk isolated and make it easy to see how your betting is going over time. For most people building a disciplined habit, singles should be the default.

Accumulators (parlays)

An accumulator links two or more selections. The odds multiply, so a four-leg accumulator at odds around 2.00 each pays about 16 times the stake — but it needs all four to win. Each leg also carries the bookmaker's margin, and those margins compound. That is why accumulators are attractive on paper and costly in practice. If you enjoy them, keep the stake small and the number of legs low.

System bets

A system bet splits a group of selections into every possible combination of a given size. A "Trixie", for example, covers three selections with three doubles and one treble — four bets in total. One wrong pick no longer loses everything, but the total stake is higher because you are paying for several bets at once. Always check the total cost on the slip before confirming.

Handicaps

A handicap gives one side a virtual lead or deficit. In a match where one team is a clear favourite, a −1 handicap means the favourite must win by two or more for the bet to win. Asian handicaps use half and quarter lines to remove the draw or split the stake across two lines. They are a useful way to find fairer odds in one-sided matches, but the settlement rules need careful reading.

Totals (over/under)

Totals ask whether a count — goals, points, games, runs — will be above or below a line set by the bookmaker. Half-point lines such as 2.5 avoid a push; whole-number lines may return the stake if the total lands exactly on the line. Totals let you bet on the shape of a match without picking a winner.

Other common markets

Double chance: two of the three outcomes in one bet, at lower odds.
Both teams to score: a yes-or-no market on goals from each side.
Outrights: bets on the winner of a whole tournament or season.
Player props: bets on an individual's statistics, usually with higher margins.

Choosing a format

Ask two questions before you place any bet: how many things must go right for it to win, and how much margin am I paying for that? Singles and totals answer both simply. Accumulators and props multiply both. Whichever you choose, use a fixed stake and keep a record of results.

FAQ

What is the difference between a single and an accumulator?

A single wins or loses on one selection. An accumulator combines several selections into one bet: the odds multiply, but every leg must win, and each leg adds its own margin.

What does a handicap bet do?

It gives one side a virtual head start or deficit, so that an uneven match becomes closer to a balanced bet. Asian handicaps with half or quarter lines remove or split the draw.

What happens if one leg of an accumulator is void?

Usually that leg is removed and the rest of the bet stands at reduced odds, but settlement rules differ by bookmaker. Check the betting rules page of the platform you use.

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