Free Goliath calculator
8 selections, 247 bets — 28 doubles + 56 trebles + 70 fourfolds + 56 fivefolds + 28 sixfolds + 8 sevenfolds + 1 eightfold. The largest mainstream full-cover bet at UK retail.
| Type | Bets | Stake | Win | Place | Return |
|---|---|---|---|---|---|
| Total | 0 | £0.00 | £0.00 | £0.00 | £0.00 |
What a Goliath actually is
A Goliath is the top of the standard full-cover ladder. You pick eight selections and the bookmaker writes 247 bets: 28 doubles, 56 trebles, 70 fourfolds, 56 fivefolds, 28 sixfolds, 8 sevenfolds, and one all-conquering eightfold accumulator. No singles.
At £1 a unit, that's £247 outlay — the largest standard bet most UK bookmakers will accept off-the-shelf. A minimum of two winners is needed for the slip to return anything. Goliaths are almost exclusively a Saturday-afternoon racing bet, or used on multi-game football accas where the punter genuinely fancies eight separate outcomes and wants to leverage the deep compounding of the middle folds (the fivefolds and sixfolds, where most of the value sits).
Worked example — eight winners at 2/1
Eight selections at 2/1 (3.00 decimal), £0.10 unit stake — total outlay £24.70. Settling each fold:
- 28 doubles × (£0.10 × 9) = £25.20
- 56 trebles × (£0.10 × 27) = £151.20
- 70 fourfolds × (£0.10 × 81) = £567.00
- 56 fivefolds × (£0.10 × 243) = £1,360.80
- 28 sixfolds × (£0.10 × 729) = £2,041.20
- 8 sevenfolds × (£0.10 × 2,187) = £1,749.60
- 1 eightfold × (£0.10 × 6,561) = £656.10
Total return = £6,551.10 on £24.70 outlay — a profit of £6,526.40, or about 265× your stake. Note where the value sits: the 28 sixfolds alone contribute about a third of the total, more than the eightfold accumulator itself. The middle of the fold stack is where the Goliath generates its big-win profile.
And with only 2 of 8 winning at 2/1? You collect on one double — £0.90 return on £24.70, a £23.80 loss. That's a 96% wipeout. The Goliath needs strong follow-through. 3/8 returns £4.50 (still a heavy loss), 4/8 returns £18.90 (still red), 5/8 returns around £77 (your first profitable outcome). The math doesn't get kind until 5 winners.
Goliath vs Super Heinz — does the 8th selection pay?
The marginal question every Goliath punter has to answer: is adding the 8th selection worth doubling your unit price?
| Bet type | Selections | Bets | Highest fold | Min winners |
|---|---|---|---|---|
| Heinz | 6 | 57 | 6-fold | 2 |
| Super Heinz | 7 | 120 | 7-fold | 2 |
| Goliath | 8 | 247 | 8-fold | 2 |
The 8th selection takes you from 120 to 247 bets — a 106% jump in cost. If your 8th pick is as strong as your first seven, the additional folds expand the upside meaningfully when 6+ legs land. If the 8th is a stretch, you're paying 127 extra unit stakes for selections that won't all settle.
The biggest margin trap in the family
The eightfold on eight legs each carrying 4% bookmaker margin gives the book a compounded edge of about 33% on that single bet. Across 247 bets, the effective edge on a typical UK racing Goliath can exceed 25%. Goliath is structurally the worst-value standard bet on the menu from a long-run EV perspective. Why bigger system bets carry exponentially more margin, not less is the cornerstone reference that walks through why each additional leg makes the maths worse, not better.
Related tools and guides
- Betting Calculator — full multi-mode calculator: accumulator, system bets, lay, free bet, arbitrage.
- Super Heinz Calculator — the 7-selection step down (120 bets).
- Heinz Calculator — the 6-selection version of the same structure (57 bets).
- Lucky 63 Calculator — singles-and-bonuses alternative at 6 selections (63 bets).
- Odds Converter — Decimal ↔ Fractional ↔ American with implied probability.