Superfecta Calculator
Calculate superfecta bet costs and combinations. Find costs for straight, box, and key superfecta bets with exact order finish predictions.
Formula:Box Cost = n × (n-1) × (n-2) × (n-3) × Stake
Base stake for each combination
Total Cost
$24
24 combinations
Combinations
24
4 × 3 × 2 × 1 = 24
All Combinations (24)
1-3-5-7
1-3-7-5
1-5-3-7
1-5-7-3
1-7-3-5
1-7-5-3
3-1-5-7
3-1-7-5
3-5-1-7
3-5-7-1
3-7-1-5
3-7-5-1
5-1-3-7
5-1-7-3
5-3-1-7
5-3-7-1
5-7-1-3
5-7-3-1
7-1-3-5
7-1-5-3
7-3-1-5
7-3-5-1
7-5-1-3
7-5-3-1
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What is a Superfecta?
A superfecta requires picking the first four finishers in exact order. Box cost formula: n × (n-1) × (n-2) × (n-3) × base stake. A $1 superfecta box with 5 horses costs 5×4×3×2 = 120 combinations × $1 = $120. Superfectas offer huge payouts but are difficult to hit.
Key Facts About Superfecta Bets
- Superfecta: Pick 1st, 2nd, 3rd, and 4th in exact order
- Box formula: n × (n-1) × (n-2) × (n-3)
- $1 superfecta box with 4 horses = 24 combos = $24
- $1 superfecta box with 5 horses = 120 combos = $120
- $1 superfecta box with 6 horses = 360 combos = $360
- Minimum bet is typically $0.10 or $0.50
- Takeout on superfectas is typically 22-25%
- Key boxing reduces cost by fixing one horse
Superfecta Box Cost Reference
| Horses | Combinations | $0.10 Cost | $0.50 Cost | $1 Cost |
|---|---|---|---|---|
| 4 horses | 24 | $2 | $12 | $24 |
| 5 horses | 120 | $12 | $60 | $120 |
| 6 horses | 360 | $36 | $180 | $360 |
| 7 horses | 840 | $84 | $420 | $840 |
| 8 horses | 1680 | $168 | $840 | $1,680 |
Frequently Asked Questions
What is a superfecta bet?
A superfecta bet requires you to pick the first four finishers in exact order. If you bet a $1 straight superfecta on horses 2-5-3-7, they must finish exactly 1st, 2nd, 3rd, 4th in that order for you to win.
How is superfecta box cost calculated?
Superfecta box cost = n × (n-1) × (n-2) × (n-3) × stake, where n is the number of horses. For example, a $1 box with 5 horses: 5 × 4 × 3 × 2 = 120 combinations × $1 = $120.
What is a key superfecta?
A key superfecta uses one horse in a fixed position (usually first) with other horses filling the remaining spots. This reduces cost significantly. Keying one horse first with 4 others costs 4 × 3 × 2 = 24 combinations instead of 120 for a full 5-horse box.
When should I bet superfectas?
Superfectas are best in races with clear favorites that may not win but will likely finish in the money. Large fields offer better value. Many professionals key a strong horse and use longshots underneath for big payouts.
What is a 10-cent superfecta?
Most tracks offer $0.10 minimum superfectas, allowing you to box more horses affordably. A 10-cent box with 6 horses costs 360 × $0.10 = $36 instead of $360.
How this works
Calculations follow the published mathematics of the game — combinatorics for cards, probability theory for dice, and expected-value accounting for wagers. Results are verified against independent references (primarily Wizard of Odds). No calculation here is an opinion or recommendation; it is arithmetic applied to the rules of the game.
What this tool can’t do
When to consult a professional
This tool computes probability and expected value. It is not a betting system and cannot predict the outcome of any individual wager. If gambling is causing problems for you or someone you know, call the National Problem Gambling Helpline at 1-800-GAMBLER.
Sources
- [1]Wizard of Odds — Michael Shackleford, ASAIndustrywizardofodds.comAccessed Apr 21, 2026
Actuary; widely cited casino-game probability reference. Used for house-edge and EV verification.
- [2]National Council on Problem GamblingOfficial sourcencpgambling.orgAccessed Apr 21, 2026
Responsible-gambling guidance and 1-800-GAMBLER helpline.
Joseph OrdunaFounder & Software Engineer
Full-stack software engineer specializing in embedded systems, web architecture, and AI/ML. Founder of Practical Web Tools. Built the gesture-controlled drone IP acquired by KD Interactive (Aura Drone, sold on Amazon).