Free system bets calculator
Every standard UK full-cover bet covered in one tool — Trixie, Patent, Yankee, Lucky 15, Canadian, Lucky 31, Heinz, Lucky 63, Super Heinz, Goliath. Each-way supported, three odds formats, bookmaker bonuses where they apply.
| Type | Bets | Stake | Win | Place | Return |
|---|---|---|---|---|---|
| Total | 0 | £0.00 | £0.00 | £0.00 | £0.00 |
What system bets are, in one paragraph
System bets are single slips that contain many wagers across the same set of selections. Instead of one big accumulator that requires every leg to win, you cover every smaller combination too — doubles, trebles, fourfolds, fivefolds and so on. The cost is many unit stakes (a Yankee is 11, a Heinz is 57, a Goliath is 247), but the slip can still pay out on partial winners. The "Lucky" subfamily (Lucky 15, Lucky 31, Lucky 63) layers singles on top of the same structure, plus standard bookmaker bonus payouts on single-winner and all-winners outcomes.
The full ladder, from Trixie to Goliath
Every UK retail system bet, in order of selection count. Click any name for the dedicated calculator and worked example.
| Bet | Legs | Bets | Singles | Bonuses |
|---|---|---|---|---|
| Trixie | 3 | 4 | No | No |
| Patent | 3 | 7 | Yes | No |
| Yankee | 4 | 11 | No | No |
| Lucky 15 | 4 | 15 | Yes | Standard |
| Canadian | 5 | 26 | No | No |
| Lucky 31 | 5 | 31 | Yes | Standard |
| Heinz | 6 | 57 | No | No |
| Lucky 63 | 6 | 63 | Yes | Standard |
| Super Heinz | 7 | 120 | No | No |
| Goliath | 8 | 247 | No | No |
S = single, D = double, T = treble, ×4f = fourfold, etc. Lucky 15 / Lucky 31 / Lucky 63 carry standard bookmaker bonus structures; the others don't.
How to pick the right system bet
Four questions in order:
- How many selections do you actually fancy? If you're stretching to find a 6th or 7th, don't — the marginal cost of each extra leg climbs fast and you'll dilute the whole slip.
- Do you want a single-winner safety net? Yes → Patent (3 selections), Lucky 15 (4), Lucky 31 (5), Lucky 63 (6). No → Trixie, Yankee, Canadian, Heinz, Super Heinz, Goliath (cheaper, no singles).
- How short or long are your prices? At short prices (under evens), singles add limited value — the no-singles options are more efficient. At longer prices (over 2/1), the singles cushion is meaningfully useful.
- Do bookmaker bonuses matter to you? Yes → one of the Lucky bets. No → save the unit-stake cost and pick the equivalent no-singles version.
Worked example — Lucky 15 at 5/2
The calculator above defaults to Lucky 15 — the most-played full-cover bet in UK retail. Set four selections all at 5/2 (3.50 decimal) with a £0.50 unit stake — total outlay £7.50. If all four win:
- 4 singles × (£0.50 × 3.50) = £7.00
- 6 doubles × (£0.50 × 12.25) = £36.75
- 4 trebles × (£0.50 × 42.88) = £85.75
- 1 fourfold × (£0.50 × 150.06) = £75.03
Total return before bonuses = £204.53 on £7.50 outlay — a profit of £197. Add a typical 10% all-winners bonus and total becomes about £225, profit £217.50 — roughly 29× the stake. The bonus uplift alone adds £20 to the result.
Want to see the same maths on a different bet type? Switch bet type in the panel above, or jump to the dedicated Lucky 15, Yankee, Trixie or Goliath pages for worked examples tuned to each one.
Why the bookmaker still wins on average
Every leg you add to a system bet compounds the bookmaker's margin. A 4-leg full-cover bet with each leg carrying a 4% overround gives the bookie about 17% expected take on the fourfold alone; an 8-leg Goliath pushes that toward 33%. Bookmaker bonus payouts narrow the gap but rarely close it entirely — the maths is structural, not promotional. The foundational read on how bookmaker pricing works walks through exactly why this compounds the way it does — essential before stacking into any system bet deeper than a Trixie.
Dedicated calculators for every bet type
- Trixie Calculator — 3 selections, 4 bets (3D + 1T).
- Patent Calculator — 3 selections, 7 bets (3S + 3D + 1T).
- Yankee Calculator — 4 selections, 11 bets (6D + 4T + 1×4f).
- Lucky 15 Calculator — 4 selections, 15 bets (4S + 6D + 4T + 1×4f).
- Canadian Calculator — 5 selections, 26 bets (10D + 10T + 5×4f + 1×5f).
- Lucky 31 Calculator — 5 selections, 31 bets (5S + 10D + 10T + 5×4f + 1×5f).
- Heinz Calculator — 6 selections, 57 bets (15D + 20T + 15×4f + 6×5f + 1×6f).
- Lucky 63 Calculator — 6 selections, 63 bets (6S + 15D + 20T + 15×4f + 6×5f + 1×6f).
- Super Heinz Calculator — 7 selections, 120 bets (21D + 35T + 35×4f + 21×5f + 7×6f + 1×7f).
- Goliath Calculator — 8 selections, 247 bets (28D + 56T + 70×4f + 56×5f + 28×6f + 8×7f + 1×8f).
- Odds Converter — Decimal ↔ Fractional ↔ American with implied probability.
- System bets explained — the foundations guide on full-cover bets, in plain English.