Exotic bets in racing, defined with examples
Exotic bets in racing pick several runners or races in one bet. A trifecta needs the first three runners home in exact order, and a quaddie needs the winners of four races. A box trifecta on 4 runners covers 24 combinations, so an A$1 unit costs A$24.00. Pool payouts depend on the organiser's rules.
The terms
Exotics is the group name for bets that combine finishing positions or races. Three are defined here.
- Trifecta: the first three runners in exact order.
- First four: the first four runners in exact order.
- Quaddie: the winners of four races.
A box means every ordering of your chosen runners is covered.
Where this stands: three exotic bet types are defined, with a box covering every order.
Counting combinations
The cost of an exotic bet is the number of combinations times the unit stake.
For a box trifecta of n runners the count is n × (n − 1) × (n − 2). For a first four box it is n × (n − 1) × (n − 2) × (n − 3). For a quaddie, multiply the number of picks in each leg.
| Bet | Selections | Combinations | Unit | Cost |
|---|---|---|---|---|
| Straight trifecta | 3 runners in order | 1 | A$1.00 | A$1.00 |
| Box trifecta | 4 runners | 24 | A$1.00 | A$24.00 |
| Box trifecta | 5 runners | 60 | A$0.50 | A$30.00 |
| First four box | 6 runners | 360 | A$0.10 | A$36.00 |
| Quaddie | 3 × 2 × 2 × 4 picks | 48 | A$1.00 | A$48.00 |
Adding one runner to a box raises the cost sharply: from 4 to 5 runners, the trifecta count goes from 24 to 60.
Where this stands: cost is combinations times unit, and it climbs quickly as selections are added.
How the payout is formed
Exotic bets are settled from a pool. Stakes are collected, an amount is deducted, and the remainder is shared among winning tickets. The dividend is therefore not known when you bet.
A withdrawn runner affects the field; see scratchings and deductions. The pooled model is compared with fixed prices in fixed odds or tote.
Where this stands: the dividend comes from a shared pool and is unknown until the race is run.
Rules still to be read
| Fact | Source to read | Status |
|---|---|---|
| Pool deduction for each exotic type | Organiser or operator rules | Not confirmed on 2026-11-13 |
| Minimum unit stake | Operator racing rules | Not confirmed on 2026-11-13 |
| Quaddie rules on a scratched leg | Organiser rules | Not confirmed on 2026-11-13 |
Exotics exist in all three codes: see horse racing, harness racing and greyhound racing. To read a field first, see how to read a racing form guide.
Where this stands: the counting is derived; pool rules and minimum units are not yet read.
18+ only. Gamble responsibly.
18+ only. Gambling can be harmful. Need help? Call Gambling Help Online on 1800 858 858 (free, 24/7) or visit gamblinghelponline.org.au.
To exclude yourself from licensed Australian online and phone wagering providers, register with BetStop at betstop.gov.au. We are not a bookmaker and do not take bets.
Where this stands: free help and exclusion routes exist and are named above.
FAQ
What is a trifecta?
A trifecta is a bet that picks the first three runners home in exact order. A straight trifecta is one combination.
What is a quaddie?
A quaddie is a bet on the winners of four races. You pick one or more runners in each leg, and every leg must be won by one of your picks.
How many combinations does a box trifecta cover?
A box of 4 runners covers 4 × 3 × 2 = 24 combinations. At an A$1 unit, that costs A$24.00.
How is the payout of an exotic bet decided?
Stakes go into a pool, an amount is deducted, and winners share the rest. The deduction and the dividend rules are not yet read and are not confirmed on 2026-11-13.