Game guides
Types of Sports Bets — Singles, Accumulators, In-Play & Specials
A modern sportsbook publishes thousands of markets every weekend. Underneath the marketing labels — “Bet Builder”, “Same Game Multi”, “Quick Acca”, “Boost Boost Boost” — sit roughly twelve underlying bet types. Once you know what they are and how each one is priced, every “new” market on every sportsbook becomes recognisable inside thirty seconds.
This guide covers the structural categories: singles, multiples, system bets, handicaps, totals, propositions, in-play, and specials. For each, we explain the mechanic, the risk profile, and where the bookmaker margin tends to be hidden. We do not select bets, recommend markets, or call anything a “value play”. Every bet type carries an expected loss equal to the bookmaker’s margin compounded over thousands of placements.
Singles — the building block
A single is one bet on one outcome. Stake £10 on Liverpool to beat Brighton at decimal odds 1.65 — you win £16.50 total (£6.50 profit) or you lose the £10. Nothing else affects the outcome.
Singles are the lowest-variance, most transparent way to bet. They are also the format with the lowest bookmaker margin on major markets — typically 4–8% on main football match-outcome markets, 4–5% on US moneyline markets at regulated books, per industry data published by Pinnacle and analytics aggregators.
Win, Place, Each-Way (horse racing context)
In horse racing and golf, the standard single splits into three related forms:
- Win: the runner must finish first.
- Place: the runner must finish in the placed positions (typically top 2–4 depending on field size).
- Each-Way (E/W): half your stake goes on Win, half on Place. You pay double the stake total. Place return is usually 1/4 or 1/5 of the Win odds, depending on race conditions.
Worked example — £5 each-way on a horse at 8/1, places paid at 1/5 odds:
- Total stake: £10 (£5 win + £5 place)
- If horse wins: Win returns £45 (£5 × 8 + £5) and Place returns £5 + (£5 × 8 × 1/5) = £5 + £8 = £13. Total return £58, profit £48.
- If horse places but doesn’t win: Win loses £5. Place returns £13. Total return £13, net loss £3 on £10 staked.
- If horse loses: Total stake of £10 lost.
The UK Gambling Commission’s Licence Conditions and Codes of Practice (LCCP) require that each-way terms (places paid, fraction of odds) are displayed clearly with the price — see LCCP guidance on advertising.
Accumulators (parlays) — the high-margin staple
An accumulator (UK/IE) or parlay (US) combines two or more selections into one bet. All selections must win for the bet to pay out. The combined odds are the product of the individual odds.
Worked example — three selections, each at decimal 1.80, stake £10:
Combined odds = 1.80 × 1.80 × 1.80 = 5.832
Total return = £10 × 5.832 = £58.32
Profit = £48.32The math is multiplicative, so payouts grow rapidly. A six-leg accumulator at 1.80 each pays roughly 34.0 — a £10 stake returns £340 if all six legs win.
The catch: bookmaker margin also compounds. If each selection carries 5% margin, the combined market on a six-leg accumulator carries roughly (1 − 0.95⁶) = 26.5% effective margin. This is why bookmakers heavily promote accumulators — they are the highest-margin product on the menu.
Acca bonuses and acca insurance
Most UK sportsbooks offer “acca boost” (e.g. +20% on winnings if 5+ legs win) and “acca insurance” (stake returned if exactly one leg loses). These offers exist because the underlying product is so profitable for the bookmaker that they can afford to give some margin back via marketing.
Read the T&Cs carefully. Common restrictions:
- Minimum odds per leg (often 1.40 or higher)
- Cash-out or partial cash-out voids the bonus
- Maximum payout caps (some books cap acca returns at £100,000 or similar)
Multiples (doubles, trebles, named multi-leg bets)
Smaller-named accumulators have specific traditional names:
| Legs | Name |
|---|---|
| 2 | Double |
| 3 | Treble |
| 4 | Four-fold (4-fold) |
| 5 | Five-fold |
| 6 | Six-fold |
| 7 | Seven-fold |
| 8+ | Eight-fold, etc. |
All follow the same multiplicative math.
System bets — multiples that don’t require all legs
A system bet is a combination of multiples from a pool of selections. Instead of requiring all N legs to win (accumulator), a system requires only some.
Common system formats:
- Trixie: 4 bets from 3 selections — three doubles and one treble.
- Patent: 7 bets from 3 selections — three singles, three doubles, one treble.
- Yankee: 11 bets from 4 selections — six doubles, four trebles, one four-fold.
- Lucky 15: 15 bets from 4 selections — four singles, six doubles, four trebles, one four-fold.
- Lucky 31: 31 bets from 5 selections — singles, doubles, trebles, four-folds, one five-fold.
- Heinz: 57 bets from 6 selections.
- Super Heinz: 120 bets from 7 selections.
- Goliath: 247 bets from 8 selections.
The stake is per line, so a £1 Yankee is £11 total. The advantage over an accumulator: you can still win money if only some of your selections come in. The disadvantage: total stake is much higher, and the effective combined margin is also high.
System bets are a UK/IE horse-racing tradition. They are mathematically a way of spreading variance — not a way of extracting bookmaker value.
Handicap betting — Asian and European
Handicaps are designed to level a one-sided contest. The favourite starts with a virtual deficit; the underdog starts with a virtual lead. Pricing tightens toward decimal 1.90/1.90 (the standard handicap bookmaker price representing roughly 5% margin total).
European handicap
A whole-number handicap with three possible outcomes (Home, Draw, Away). Example: Manchester City -2 vs Brighton.
- Man City must win by 3 or more goals → handicap bet wins.
- Man City wins by exactly 2 → handicap draws (stake refunded).
- Anything else (Man City by 1, draw, Brighton win) → handicap loses.
Asian handicap
A more flexible system with quarter-goal increments and split-stake handling. Asian handicaps are usually pure 2-way markets (no draw outcome). The four common Asian formats:
| Handicap | Meaning |
|---|---|
| -0.5 | Favourite must win outright. Draw or away = lose. |
| -1.0 | Favourite must win by 2+. Win by exactly 1 = stake refunded. |
| -0.75 (or -0.5/-1.0) | Stake split: half on -0.5, half on -1.0. Win by 2+ = full win. Win by 1 = half stake wins (the -0.5 portion), half stake refunded (the -1.0 portion). Anything else = full loss. |
| -0.25 (or 0/-0.5) | Stake split: half on 0 (draw no bet), half on -0.5. Win = full win. Draw = half refunded, half lost. Loss = full loss. |
Asian handicaps are the standard in Asian betting markets and on margin-conscious books like Pinnacle, Sportmarket, and BetISN. They are mathematically cleaner than European handicaps and carry less margin on major markets.
Totals — Over/Under
A totals bet (Over/Under, sometimes “spread totals”) predicts whether a quantity will be above or below a posted line. The quantity can be total goals, total points, total corners, total cards, total games (tennis), total rounds, etc.
Example — Liverpool vs Brighton, total goals Over/Under 2.5:
- 0, 1, or 2 total goals scored → Under 2.5 wins
- 3 or more total goals scored → Over 2.5 wins
The .5 line means there can be no draw. Bookmakers also offer whole-number lines (Over/Under 3) where a result of exactly 3 results in stake refund.
Asian totals work like Asian handicaps — half-line splits like Over 2.25 split your stake across the 2.0 and 2.5 lines.
Totals markets typically carry 4–6% margin on major football matches, similar to match-outcome markets. They are popular for in-play because the count is unambiguous (goals, points) and the live price updates predictably.
Player props and proposition bets
A proposition bet (“prop”) is a bet on a specific event within a game that doesn’t directly involve the final result. Examples:
- Anytime goalscorer — will Player X score at any point?
- First goalscorer — who scores the first goal?
- Player to be carded — will Player X receive a yellow or red card?
- Shots on target — over/under X shots on target by player Y
- Total corners — Over/Under 9.5 corners in the match
- Half-time / Full-time — predict both half-time and final result combined
Player props typically carry 8–15% margin, considerably wider than main markets. This is partly because the underlying probabilities are harder to model and partly because bookmakers know recreational bettors love picking “favourite player to score”.
Same game multis and bet builders
A same game multi (SGM) — also called Bet Builder, Build A Bet, RequestABet, BBL Player Multi — combines two or more selections from the same match into one bet. Example for a Premier League match:
- Liverpool to win
- Mohamed Salah to score anytime
- Over 9.5 corners
If all three settle as predicted, the bet wins at the combined SGM price. If any leg loses, the whole bet loses.
The math is more complex than a standard accumulator because the legs are correlated — Liverpool winning makes Salah scoring more likely, not less. Bookmakers calculate a correlation-adjusted price using internal models, and the resulting margin is typically 10–20%, considerably wider than a standard accumulator.
SGM is the highest-growth product in 2024-2025 across UK and Australian sportsbooks. It is also the highest-margin product. The two facts are connected.
In-play (live) betting
In-play or live betting is wagering on a match while it is in progress. Prices update second-by-second based on the current state of play. The major sportsbooks have built dedicated in-play teams and risk-management systems because the volume is enormous — typically 60–70% of all football betting volume on major books now goes through in-play markets.
Key characteristics:
- Latency: there is always a delay between the live event and the price update — typically 4–15 seconds on major sportsbooks. This delay is the bookmaker’s edge. A bettor watching a stream that runs 5 seconds ahead of the bookmaker has an informational advantage; a bettor relying on the bookmaker’s video feed sees the event after the price has already moved.
- Suspended markets: when something material happens (goal, red card, penalty, injury), the bookmaker suspends the market for 30–60 seconds while resetting prices. Bets placed during play but not yet accepted may be voided.
- Margin: typically 8–12%, sometimes higher during fast sequences. Wider than pre-match.
In-play deserves its own treatment — see our Live Betting Guide for a deeper look at mechanics, cash-out, and pitfalls.
Cash-out
Cash-out is a bookmaker feature that lets you settle a bet before it has finished, at a price determined by the bookmaker’s current model of likely outcomes. The cash-out price is always less than the expected value of letting the bet run — that gap is the cash-out margin, often 5–15% on top of the underlying market margin.
Cash-out is mathematically a second bet against your first one, taken at a price the bookmaker chose. Some bettors find it useful for psychological reasons (locking in a partial profit during a stressful match). The math says you are paying a fee to do so.
Specials, futures, and outrights
Outrights (also called futures in US books) are bets on long-term outcomes:
- Premier League winner
- World Cup winner
- Top goalscorer in a season
- Manager to be sacked first
- Player of the Tournament
Outrights typically carry 15–25% overround because the markets contain many runners, and the bookmaker prices in significant cushion to cover unexpected outcomes. They also tie up your stake for weeks or months.
Specials are novelty markets: politics, entertainment, weather, awards ceremonies. UK sportsbooks have offered Oscars markets, Eurovision winner markets, and general election markets for decades. Pricing on specials is typically very wide-margin (15–30%+) because the bookmaker has limited data and limited willingness to take exposure.
Risk profile summary
| Bet type | Typical margin | Variance | Frequency of payout |
|---|---|---|---|
| Match-outcome single | 4–8% | Low | High |
| Asian handicap | 2–5% | Low | High |
| Over/Under totals | 4–6% | Low | High |
| Each-way horse single | 10–25% | Medium | Medium |
| Double / Treble | 8–15% | Medium | Medium |
| 5+ leg accumulator | 20–30%+ | High | Very low |
| Player prop | 8–15% | Medium-high | Medium |
| Same game multi | 10–20% | High | Low |
| Outright (futures) | 15–25% | Very high | Very low |
| In-play | 8–12% | Variable | Variable |
| Cash-out | +5–15% on top | Reduces variance | Reduces variance |
| Specials / novelty | 15–30%+ | Very high | Very low |
This table is approximate and varies by sportsbook. Pinnacle and Sportmarket sit at the low end. Most UK retail-facing books sit in the middle. Aggressive promotional books and crypto sportsbooks vary widely — sometimes lower on flagship markets, much higher on side markets.
Frequently asked questions
What is the lowest-margin bet type?
Asian handicaps and totals on major football matches, on margin-conscious bookmakers like Pinnacle. Typical margin 2–4%.
What is the highest-margin bet type?
Long-leg accumulators, same game multis, and special/novelty markets. Effective margins of 25%+ are common.
Are accumulators good value?
Mathematically no. Margin compounds multiplicatively. They have high entertainment value because the payouts are large when they hit, but the expected return per pound staked is significantly lower than singles.
Can you mix singles and multiples in one bet slip?
Most sportsbooks accept multiple bets on one slip but settle each as a separate bet. System bets are an exception — they bundle multiple multiples into one product.
What is the difference between Asian and European handicap?
European handicap has three outcomes (Home/Draw/Away) and whole-number handicaps. Asian handicap has two outcomes (no draw), allows quarter-goal handicaps, and splits stakes across adjacent lines.
Are bet builder bets independent legs?
No — the legs are correlated within the same match, and the bookmaker uses an internal model to set the combined price. The combined price is almost always less generous than the naive product of independent odds would imply, because correlation works both ways and bookmakers price the worst-case correlation.
Responsible gambling reminder
Every bet type listed here has an expected long-term loss equal to the bookmaker’s margin compounded across thousands of placements. Higher-margin bet types lose money faster. Variance can produce short-term winning streaks, but the math is unchanged.
Bet with money you can afford to lose entirely, treat any winnings as a windfall rather than a return, and stop the moment betting feels like an obligation rather than entertainment. Free confidential support:
- UK: BeGambleAware.org · GamCare 0808 8020 133
- Ireland: problemgambling.ie
- Canada (Ontario): ConnexOntario 1-866-531-2600
- New Zealand: Gambling Helpline 0800 654 655
We do not offer tips, picks, or selections. This guide explains bet types as a matter of math. Outcomes remain statistically uncertain and the bookmaker’s margin is built into every market.