UK Horse Racing Exotic Bet Glossary: Every Term From Forecast to Superfecta
Available in US
I spent my first year in exotic betting confused by terminology. Was a forecast the same as an exacta? What exactly is a swinger? Why do Americans say “trifecta” when we say “tricast”? The UK uses a distinct vocabulary for exotic bets that diverges from US, Australian and international conventions, and this glossary exists to end the confusion once and for all. Every term is defined in its UK context, with the international equivalent noted where relevant, so you always know what you are reading, hearing and betting on.
Table of Contents
Glossary: A-F
Back wheel. A wheel bet structure where the key horse is fixed in a lower finishing position – typically second or third – rather than first. The cost is identical to a standard top wheel; the difference is strategic. Used when you rate a horse to place but not to win. Also called a bottom wheel.
Box bet. An exotic bet that covers every permutation of a selected group of horses across the relevant finishing positions. No horse is fixed in any position. A trifecta box on four horses covers 24 permutations (4 x 3 x 2). More expensive than a wheel because it does not use key horses to reduce combinations.
Combination forecast. A forecast bet covering multiple permutations of selected horses. With two horses, it covers both finishing orders (A-B and B-A). With three or more, it covers every possible pair in every order. Formula: n x (n-1). Also known as a reverse forecast when limited to two horses.
Combination tricast. A tricast bet covering every permutation of selected horses across first, second and third. With three horses: 6 permutations. With four: 24. Formula: n x (n-1) x (n-2). Also called a reverse tricast.
Computer straight forecast (CSF). An algorithm used by UK bookmakers to calculate forecast payouts. The CSF approximates a fair pool return based on the starting prices of the first two finishers. It is not a Tote pool product – it is a fixed-odds calculation. Returns can differ from Tote Exacta dividends on the same result.
Deduction. The percentage the Tote removes from a pool before distributing dividends. Ranges from 16% on Win pools to approximately 28% on Jackpot pools. Exotic pools – Exacta, Trifecta, Superfecta – carry a 25% deduction. Also referred to as takeout or commission.
Dividend. The payout per winning unit declared by the Tote after a race. Calculated by dividing the net pool (total pool minus deduction) by the number of winning units. Published as a return per 1-pound unit.
Exacta. International term for a bet requiring you to name the first and second finishers in exact order. In the UK, the Tote offers this as the Exacta pool. The UK traditional term is forecast. The US and international term is exacta or perfecta.
Forecast. The UK term for a bet on the first two finishers in order. Equivalent to the international exacta. Available on the Tote as a pool bet and through bookmakers at CSF rates. Can be placed as a straight forecast (one combination) or combination forecast (multiple permutations).
Full wheel. A wheel bet where the key horse is fixed in position and every other runner in the race fills the remaining positions. Provides maximum coverage at maximum cost. Compare with part wheel, which restricts the non-key positions to selected runners.
Glossary: G-Q
Key horse. The horse fixed in a specific finishing position in a wheel bet. The anchor around which all combinations revolve. If the key horse does not finish in its assigned position, the entire wheel loses. Single-key wheels fix one horse; multi-key wheels fix two or more.
Levy. The Horserace Betting Levy – a statutory charge on bookmaker profits from British racing, fixed at 10%. Funds prize money, integrity services, training grants and veterinary research through the HBLB. A portion of Tote pool deductions contributes to Levy obligations.
Net pool. The total pool minus the Tote deduction. This is the money actually distributed to winners. On a 10,000-pound Exacta pool with a 25% deduction, the net pool is 7,500 pounds.
Pari-mutuel. The betting system where all stakes are pooled, a deduction is taken, and the remainder is divided among winners. The Tote operates on a pari-mutuel basis. Distinct from fixed-odds betting where the bookmaker sets individual prices. The term comes from the French for “mutual wager”.
Part wheel. A wheel bet where the key horse is fixed in position but the non-key positions are filled by a selected subset of runners rather than the full field. Reduces cost compared to a full wheel while sacrificing coverage of excluded runners. Also called a partial wheel.
Permutation. An ordered arrangement of horses across finishing positions. In exotic betting, permutations matter because finishing order determines the outcome. A-B-C and A-C-B are different permutations and constitute different tricast results. Wheel bet cost is calculated by counting the number of permutations the ticket covers.
Placepot. A Tote multi-race pool requiring you to select a placed horse in each of the first six races at a meeting. The deduction is approximately 27%. Not an exotic bet in the traditional sense – it requires place finishes rather than exact finishing orders – but it feeds into the Tote pool system alongside forecasts and tricasts.
Quinella. A bet on two horses to finish in the first two places in either order. Order does not matter – if your two horses fill first and second in any arrangement, the bet wins. The UK Tote calls this a Swinger. The quinella is always cheaper than the equivalent exacta because it covers fewer permutations (n x (n-1) / 2 versus n x (n-1)).
Glossary: R-W
Reverse forecast. A combination forecast on two horses, covering both finishing orders. Two permutations, double the cost of a straight forecast. Same coverage as a quinella but placed into the Exacta pool rather than the Swinger pool, potentially producing a different dividend.
Superfecta. A bet requiring you to name the first four finishers in exact order. The most complex and expensive standard exotic bet type. Available on the Tote with a 25% deduction. Also called the First Four in some international jurisdictions.
Swinger. The UK Tote’s name for a quinella. Two horses to finish in the first two places in either order. The Swinger operates as a separate pool from the Exacta, which means dividends can differ from the equivalent reverse forecast payout.
Takeout. Another term for the Tote’s pool deduction. The percentage removed from the total pool before dividends are calculated. Used interchangeably with deduction and commission. UK Tote takeout on exotics is 25%.
Top wheel. A wheel bet where the key horse is fixed in first place. The standard wheel structure – most punters default to keying their selection to win. Compare with back wheel, where the key is fixed in a lower position.
Tricast. The UK term for a bet on the first three finishers in exact order. Equivalent to the international trifecta. Available on the Tote and through bookmakers at computer tricast rates. Can be placed as a straight tricast, combination tricast, or as part of a trifecta wheel.
Trifecta. International term for a tricast – first three finishers in exact order. The Tote uses “Trifecta” as its pool name. In UK racing conversation, “tricast” and “trifecta” are used interchangeably, though “tricast” is the older UK term and “trifecta” reflects the international standard.
Wheel bet. An exotic bet structure that fixes one or more horses in specific finishing positions (key horses) and fills the remaining positions with selected runners or the full field. Covers multiple permutations around the keyed positions. The primary tool for controlling exotic bet cost while maintaining coverage. Available on the Tote for Exacta, Trifecta and Superfecta pools.
This glossary covers every term you are likely to encounter when researching, placing or discussing exotic bets in UK racing. The terminology can be confusing – particularly the overlap between UK and US conventions – but every term maps to a precise bet structure or pool mechanism. If you can define it, you can price it. And if you can price it, you can decide whether it belongs in your strategy. For the full set of formulas, cost tables and worked examples, the main wheel bet calculator guide puts every glossary term into practical context.
Why do UK and US horse racing use different terms for the same bet?
The terminology diverged because pool betting developed independently in each market. The UK adopted terms like forecast and tricast from the traditional Tote system. The US adopted exacta, trifecta and superfecta from the American pari-mutuel tradition. The bets are structurally identical – the differences are purely linguistic. As international pool products like the World Pool have grown, the US terms have become increasingly common in UK usage as well.
Is a swinger the same as a quinella?
Yes. The Tote Swinger is the UK pool product equivalent of a quinella. Both require two selected horses to finish in the first two places in either order. The Swinger operates as a distinct Tote pool with its own deduction rate and dividend calculation. The term quinella is the international standard; swinger is specific to the UK Tote.
Prepared by the Horse Racing Wheel bet Calculator editorial staff.
