Patent Calculator
7 bets on 3 selections — singles, doubles and a treble, so one winner still pays.
A Patent is 7 bets from 3 selections (3 singles, 3 doubles, 1 trebles). Void/non-runner legs settle at 1.00, shrinking any line they're in. Each-way doubles the stake and pays a place accumulator at each leg's terms.
How a Patent works
A Patent is seven bets on three selections: a single on each, the three doubles and the treble. The singles are the point of it — one winner is enough to get something back, which a Trixie (the same bet without singles) can't promise. That cover is why a Patent stakes seven units where a Trixie stakes four.
Worked example: a £1 Patent costs £7. Three winners at 2/1, 3/1 and 5/1 return £3 + £4 + £6 from the singles, £12 + £18 + £24 from the doubles and £72 from the treble — £139 back. The doubles and treble carry the profit; the singles are what rescue the bet when only one or two selections oblige.
The seven bets
| Bet | Number |
|---|---|
| Singles | 3 |
| Doubles | 3 |
| Treble | 1 |
| Total | 7 |
FAQ
What comes back if only one wins?
That single alone. One winner at 2/1 on a £1 Patent returns £3 against the £7 staked, so you usually need two winners before a Patent shows a profit.
Patent or Trixie?
The Patent buys downside cover with its three singles; the Trixie is cheaper but returns nothing unless at least two selections win. See the Trixie.
Can I place it each-way?
Yes. Tick each-way and the stake doubles, with a place bet alongside every win bet at each leg's terms — set the place fraction on each row.
Take the three prices from the best odds across bookmakers, and weigh expected value before stacking selections: every leg's margin compounds through the doubles and treble.