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System & Combo Bet Calculator

Calculate returns for Trixie, Yankee, Lucky 15, Patent, Heinz, Goliath, and more. Switch between System Bets (automatic combinations) and Combo Bets (manual bet type + each-way support).

Presets

Selections

$
Your Selections3 / 8
1
2
3

Results

System
Trixie
3 doubles + 1 treble. Needs at least 2 winners to return.
Total Bets4
Total Stake$4.00
Total Returns$33.50
Profit / Loss+$29.50
ROI737.5%
Bet Type Breakdown
TypeCountReturnsProfit
Doubles3$18.50+$15.50
Trebles1$15.00+$14.00
Total4$33.50+$29.50
Coverage & Parlay Comparison
Win Coverage100.0%4 of 4 bets won
Straight Acca Returns$15.001 bet @ $1.00 stake
System ROI737.5%
Acca ROI1400.0%
If One Leg Loses (Scenario Matrix)
Losing LegReturnsProfit/LossROI
Sel 1$7.50+$3.5087.5%
Sel 2$6.00+$2.0050.0%
Sel 3$5.00+$1.0025.0%

Understanding System Bets

What Are System Bets?

A system bet is a combination wager that covers multiple selections across different bet types (singles, doubles, trebles, etc.). Unlike an accumulator where all legs must win, system bets generate returns even if one or more selections lose. The trade-off is a higher total stake since you are placing multiple bets simultaneously. Each sub-bet within the system is treated as an independent wager at your chosen unit stake.

System Types Explained

Trixie (3 sel): 4 bets, 3 doubles + 1 treble. Needs 2+ winners for a return. Patent (3 sel): 7 bets, adds 3 singles, so 1 winner guarantees a return. Yankee (4 sel): 11 bets, 6 doubles, 4 trebles, 1 four-fold. Lucky 15 (4 sel): 15 bets, Yankee + 4 singles. Canadian (5 sel): 26 bets. Heinz (6 sel): 57 bets. Super Heinz (7 sel): 120 bets. Goliath (8 sel): 247 bets. "Lucky" variants always include singles.

When to Use Systems

System bets make sense when you have moderate confidence in multiple selections but want insurance against one or two losing. They are popular in horse racing and football accumulators. The "Lucky" variants (Lucky 15, Lucky 31, Lucky 63) include singles, guaranteeing some return from a single winner. Systems work best at higher odds. At short prices, the returns from partial winners often do not cover the increased total stake compared to a straight accumulator.

Systems vs Straight Accas

A straight accumulator is the highest-risk, highest-reward option: all selections must win, but the stake is just one unit. A system bet covers every combination, so the stake is much higher (e.g., 247x for a Goliath), but you get returns from partial winners. Mathematically, the expected value of both is negative due to the bookmaker margin. The choice depends on your risk appetite: accumulators for lottery-style shots, systems for more consistent (but smaller) returns when you hit 70-80% of your picks.

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Frequently Asked Questions

What is a system bet?

A system bet covers multiple combinations of a set of selections. Instead of one parlay that requires all legs to win, a system bet generates every possible combination of a given size, so you can still profit even if some selections lose.

What is a Trixie?

A Trixie covers 3 selections with 4 bets: 3 doubles and 1 treble. You need at least 2 correct selections to get a return. Compare to a Patent (7 bets) which also includes the 3 singles.

What is a Yankee vs Lucky 15?

A Yankee covers 4 selections with 11 bets (no singles): 6 doubles, 4 trebles, and 1 fourfold. A Lucky 15 adds 4 singles, totaling 15 bets. Lucky 15 guarantees a return if even one selection wins.

How many bets is a Heinz?

A Heinz covers 6 selections with 57 bets (like 57 varieties): 15 doubles, 20 trebles, 15 four-folds, 6 five-folds, and 1 six-fold. A Super Heinz covers 7 selections (120 bets) and a Goliath covers 8 (247 bets).

What is the difference between System Bets and Combo Bets tabs?

The System Bets tab auto-calculates your result live as you select combinations. The Combo Bets tab gives you more control: choose your exact bet type, use fractional or American odds, add each-way options, lucky bonuses, and stake optimization.

First time here

Your unit stake and the decimal odds of each selection. Pick the system (Trixie, Yankee, Lucky 15) and mark results as they come in.

Next

Goes with this. UK-style combination bets: Trixie, Patent, Yankee, Lucky 15/31/63, Heinz, Super Heinz, and Goliath. Full breakdown of every sub-bet with partial wins.

Open Combo Bets (Yankee/Trixie) →
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