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Statistics, news, analysis and guidance for informed sports decisions.

System Bet Calculator - online calculator

Interactive betting calculator

Selection 1
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Selection 4

What is a System Bet?

A system bet is a structured combination of multiple bets covering all possible combinations within a set of selections. Unlike an accumulator where all selections must win, a system bet pays out even if only some of your selections are successful.

The most popular system bets in UK betting are the Trixie (3 selections), Patent (3 selections including singles), Yankee (4 selections), Lucky 15 (4 selections with singles), Lucky 31 (5 selections with singles), and Lucky 63 (6 selections with singles).

How System Bets Differ from Accumulators

An accumulator on 4 selections is a single four-fold bet: all four must win. A Yankee on 4 selections costs 11 bets and covers all doubles, trebles, and the four-fold — so you can profit even if only two selections win.

The trade-off: System bets cost more (more individual bets), but they offer insurance against partial success.

How to Use the System Bet Calculator

  1. Select the bet type — Trixie, Patent, Yankee, Lucky 15, Lucky 31, or Lucky 63
  2. Enter the unit stake — the stake per individual bet within the system
  3. Enter odds for each selection in any format
  4. Mark which selections won and which lost
  5. Read your return — the calculator shows exactly how much each winning combination pays

System Bet Reference Table

Bet Name Selections Doubles Trebles 4-folds 5-folds 6-folds Singles Total Bets
Trixie 3 3 1 - - - - 4
Patent 3 3 1 - - - 3 7
Yankee 4 6 4 1 - - - 11
Lucky 15 4 6 4 1 - - 4 15
Lucky 31 5 10 10 5 1 - 5 31
Lucky 63 6 15 20 15 6 1 6 63

Tips and Strategies

  • Bonuses on all winners: Many bookmakers offer a bonus (often 10-25%) when all selections in a Lucky 15, 31, or 63 win. Factor this into your returns.
  • Consolation payouts: Some bookmakers pay a consolation if only one selection wins in a Lucky 15. Check the terms.
  • System bets for horse racing: Lucky 15s and 31s are extremely popular in UK horse racing, particularly on festival days with multiple races.
  • Keep stakes modest: Because system bets involve many individual bets, the total cost adds up quickly. A £1 Lucky 63 costs £63 total.

Frequently Asked Questions

?What is the difference between a Trixie and a Patent?
A Trixie covers 4 bets (3 doubles + 1 treble) from 3 selections. A Patent adds 3 singles, making 7 bets. The Patent pays out even if only one selection wins.
?What is a Yankee?
A Yankee is an 11-bet system covering all combinations from 4 selections: 6 doubles, 4 trebles, and 1 four-fold. You need at least 2 winners to get a return.
?How much does a Lucky 15 cost?
A Lucky 15 at £1 per bet costs £15 in total. The 15 bets cover all singles, doubles, trebles, and the four-fold from 4 selections.
?Is a system bet better value than an accumulator?
Neither is inherently better. System bets cost more but give partial returns. Accumulators are higher risk, higher reward. Which is better depends on your selections and risk tolerance.