Learn · UK betting
UK System Bets Explained
Try the Lucky 15 calculatorPlus Trixie, Yankee, Patent, Lucky 31/63, Heinz & more.
What is a system bet?
A system bet splits a group of selections into several smaller bets — doubles, trebles, accumulators, and sometimes singles — instead of forcing everything into one all-or-nothing accumulator. If one selection lets you down, the rest of the bets in the system can still land, so you can get a return even without a clean sweep. The trade-off is cost: each system is really several bets stacked into one slip, so your total stake multiplies accordingly.
How system bets work
Every selection in a system bet is combined with every other selection to form specific bet types — doubles, trebles, four-folds, and so on — depending on which system you choose. A Trixie, for example, takes 3 selections and builds every possible double (3 of them) plus the one treble, for 4 bets total. A Lucky 15 takes 4 selections and builds every single (4), every double (6), every treble (4) and the four-fold accumulator (1), for 15 bets total. The more selections you add, the more combinations — and more bets — the system produces.
Because each of those bets needs its own stake, a “£1 system” means £1 on each bet within it, not £1 overall. That’s why a £1 Lucky 15 costs £15.00 to place, not £1.00.
Comparison table: all ten system bets
All figures below assume a £1 stake per bet, with every selection winning at evens odds.
| System | Selections | Bets | Total stake | Total return (all win, evens) |
|---|---|---|---|---|
| Trixie | 3 | 4 | £4.00 | £20.00 |
| Patent | 3 | 7 | £7.00 | £26.00 |
| Yankee | 4 | 11 | £11.00 | £72.00 |
| Lucky 15 | 4 | 15 | £15.00 | £80.00 |
| Canadian / Super Yankee | 5 | 26 | £26.00 | £232.00 |
| Lucky 31 | 5 | 31 | £31.00 | £242.00 |
| Heinz | 6 | 57 | £57.00 | £716.00 |
| Lucky 63 | 6 | 63 | £63.00 | £728.00 |
| Super Heinz | 7 | 120 | £120.00 | £2172.00 |
| Goliath | 8 | 247 | £247.00 | £6544.00 |
Trixie
A Trixie uses 3 selections to build 4 bets: three doubles and one treble. There are no singles, so at least two selections need to win for any return. A £1 Trixie with all three winning at evens returns £20.00 from a £4.00 stake. Full breakdowns are available on the Trixie calculator, and our Trixie bet guide covers the mechanics in more depth.
Patent
A Patent also starts from 3 selections but adds the three singles to the Trixie’s doubles and treble, making 7 bets in total. That extra coverage means a single winner still produces a return. A £1 Patent with all three winning at evens returns £26.00 from a £7.00 stake. See the Patent bet guide and the Patent bet calculator.
Yankee
A Yankee steps up to 4 selections: six doubles, four trebles and one four-fold accumulator, for 11 bets. Like the Trixie, there are no singles. A £1 Yankee with all four winning at evens returns £72.00 from an £11.00 stake. Read more in the Yankee bet guide or try the Yankee calculator.
Lucky 15
A Lucky 15 covers the same 4 selections as a Yankee but adds the four singles, taking the total to 15 bets. Because it includes singles, it can still return something from a single winner. A £1 Lucky 15 with all four winning at evens returns £80.00 from a £15.00 stake. We cover the full staking and payout logic in our Lucky 15 bet guide — or run your own numbers on the Lucky 15 calculator.
Canadian / Super Yankee
Known as a Canadian or Super Yankee, this system uses 5 selections to build 26 bets: ten doubles, ten trebles, five four-folds and one five-fold accumulator. A £1 Canadian with all five winning at evens returns £232.00 from a £26.00 stake. Try the Canadian bet calculator.
Lucky 31
A Lucky 31 takes the same 5 selections as a Canadian and adds the five singles, for 31 bets total. A £1 Lucky 31 with all five winning at evens returns £242.00 from a £31.00 stake. Use the Lucky 31 calculator to test different odds.
Heinz
A Heinz uses 6 selections to build 57 bets: fifteen doubles, twenty trebles, fifteen four-folds, six five-folds and one six-fold accumulator — no singles. A £1 Heinz with all six winning at evens returns £716.00 from a £57.00 stake. Check your own combination with the Heinz calculator.
Lucky 63
A Lucky 63 adds the six singles to the Heinz combinations, for 63 bets from 6 selections. A £1 Lucky 63 with all six winning at evens returns £728.00 from a £63.00 stake. See the Lucky 63 calculator.
Super Heinz
A Super Heinz extends to 7 selections and 120 bets, covering every double through to the seven-fold accumulator. A £1 Super Heinz with all seven winning at evens returns £2172.00 from a £120.00 stake. Run figures on the Super Heinz calculator.
Goliath
The largest common system, a Goliath covers 8 selections across 247 bets, from doubles right up to the eight-fold accumulator. A £1 Goliath with all eight winning at evens returns £6544.00 from a £247.00 stake. Given the number of bets involved, it’s worth modelling the stake carefully on the Goliath bet calculator before committing.
Worked example: £1 Lucky 15
Take a £1 Lucky 15 across 4 selections, all priced at evens, and all four win. The system is built from 15 bets: 4 singles, 6 doubles, 4 trebles and 1 four-fold accumulator. At £1 per bet, the total stake is £15.00. With all four winning at evens, the total return is £80.00. That return comes from every bet in the system landing — the singles, doubles, trebles and the accumulator all contribute, which is the main appeal of a Lucky 15 over a straight four-fold accumulator: even one or two losers can still leave you with a partial return, rather than nothing at all.
Common mistakes
- Confusing “£1 system” with £1 total stake. A £1 Lucky 15 costs £15.00 to place, because it’s 15 separate £1 bets, not one £1 bet.
- Ignoring how many bets are involved. Larger systems like a Super Heinz (120 bets) or Goliath (247 bets) add up quickly even at small stakes per bet.
- Assuming system bets beat a straight accumulator. They don’t guarantee a bigger return — they spread risk differently. Compare against a simple parlay or accumulator to see which suits your selections.
- Not checking odds format. UK systems are usually quoted in fractional odds; if you’re more used to decimal or American odds, our how betting odds work guide explains the conversions.
- Forgetting that losing selections still cost money. Most system bets have no place component, so a losing selection returns nothing. Each-way bets can still return the place part if the selection places, but that is not a stake refund — see our each-way betting guide for how that differs.
System bets can offer more ways to get a return than a single accumulator, but they also multiply your total stake fast, so always check the full cost before placing one. Please gamble responsibly, 18+.