The Heinz Flag is one of the most sophisticated wager types in sports betting, offering a unique blend of high-coverage system betting and “Any To Come” (ATC) insurance. Designed for six selections, it combines the massive winning potential of a standard Heinz bet with the safety net of Single Stakes About (SSA) pairs.
[calculator type=”heinz-flag”]
Whether you are a horse racing enthusiast looking to cover a full card or a strategic bettor managing risk, this tool is essential. This calculator features a distinct Basic Mode for quickly calculating returns and profits, and a powerful Pro Mode that unlocks professional-grade analytics like Expected Value (EV), Kelly Criterion suggestions, and Bankroll Management metrics.
📊 How to Use the Heinz Flag Calculator
The Heinz Flag Calculator is designed to handle the complexity of 87 separate bets without requiring manual math. The interface is split into two distinct modes to serve both casual punters and serious investors.
Using Basic Mode
By default, the calculator loads in Basic Mode. This view focuses entirely on the mechanics of the bet itself. You start by entering your “Unit Stake”. This is the amount you wish to wager on each individual line. Be careful here, as the Heinz Flag consists of 87 bets, so a $1 unit stake results in an $87 total wager.
Next, input the odds for your six selections. You can toggle the status of each selection between “Win” and “Loss” (or “Void” where applicable) to simulate different outcomes. As you adjust these inputs, the “Results” panel updates instantly, showing your Total Return, Total Stake, and Net Profit.
Did you know? A standard Heinz has 57 bets. The “Flag” addition adds 15 pairs of “Single Stakes About” (SSA) bets. Since each SSA pair consists of 2 bets, this adds 30 wagers, bringing the total to 87.
Using Pro Mode
For bettors who treat gambling as an investment, the Pro Mode is indispensable. You can activate this by clicking the toggle button at the top of the interface. This reveals advanced fields such as “Bankroll” and “Avg Win Probability.”
Pro Mode takes your odds and outcomes and calculates deeper metrics. It will tell you the Expected Value (EV) of the wager based on your perceived win probability. Crucially, it provides Kelly Criterion recommendations, helping you size your bets optimally to grow your bankroll while minimizing the risk of ruin.
Switching Between Modes
Switching is seamless. You can toggle between Basic and Pro at any time without losing your odds or selection data. If you are unsure how the Pro features work, you can click the “Try Example” button while in Pro Mode to populate the fields with realistic data, demonstrating how a professional might structure a high-value betting portfolio.
🔢 Calculator Fields Explained
To get the most out of this tool, it is important to understand what each input field represents and how it influences the calculation.
Basic Mode Fields
- Unit Stake ($): (Basic Mode) The amount of money placed on each of the 87 bets. Warning: Total Stake = Unit Stake × 87.
- Selection Odds: (Basic Mode) The decimal odds for each of the 6 legs. For example, 2.50 or 3.00.
- Status Toggles: (Basic Mode) Buttons to mark a leg as “Win” (W) or “Loss” (L). This determines if that specific leg contributes to the payout.
- Total Return: (Basic Mode Result) The gross amount returned to you, including your initial stake.
- Profit/Loss: (Basic Mode Result) The net money made or lost. (Total Return minus Total Stake).
Budget Alert: Because the Heinz Flag multiplies your stake by 87, a modest $5 unit stake costs $435. Always verify your total liability before placing the bet at a bookmaker.
Pro Mode Additional Fields
- Bankroll ($): (Pro Mode Only) Your total available betting funds. This is used to calculate safe staking percentages.
- Avg Win Probability (%): (Pro Mode Only) Your estimated chance of a single leg winning. This is used to calculate Expected Value (EV).
- Expected Value (EV): (Pro Mode Only) A positive or negative dollar amount indicating the theoretical value of the bet over infinite trials.
- Kelly Criterion (Full/Half/Quarter): (Pro Mode Only) Suggested stake amounts based on your edge. “Full” is aggressive, while “Quarter” is conservative.
- ROI: (Pro Mode Only) Return on Investment expressed as a percentage.
- Combined Odds: (Pro Mode Only) The mathematical product of all 6 odds, representing the parlay portion of the bet.
💰 Understanding the Results
The Heinz Flag is a complex system bet because it pays out through multiple channels: standard accumulators (doubles, trebles, etc.) and the “If Cash” style SSA bets. Understanding where your money comes from is key to strategy.
Basic Mode Results
In Basic Mode, the primary focus is on liquidity. The calculator provides a breakdown of the Heinz Return versus the SSA Return. The Heinz portion covers the 57 standard bets (15 doubles, 20 trebles, 15 four-folds, 6 five-folds, 1 six-fold). This is where the bulk of the profit comes from if 4 or more selections win.

Pro Mode Results
Pro Mode results move beyond simple profit and focus on efficiency. The Expected Value (EV) indicator is vital; if this number is negative, the calculator is mathematically suggesting that the bet is a losing proposition long-term, regardless of the short-term outcome.
Pro Advantage: The Kelly Criterion breakdown is the most powerful feature. It prevents over-staking on high-variance bets like the Heinz Flag, suggesting “Quarter Kelly” amounts to smooth out the inevitable variance of 6-leg wagers.
The Pro interface also uses color-coded indicators. Green EV figures indicate a value bet, while red indicates a poor wager. Similarly, the ROI percentage allows you to compare the efficiency of this Heinz Flag against other potential bets, such as a Patent or a Lucky 63.
Feature Comparison Table
| Feature / Metric | Basic Mode | Pro Mode |
|---|---|---|
| Total Profit/Loss | ✅ Yes | ✅ Yes |
| Detailed SSA Breakdown | ✅ Yes | ✅ Yes |
| Bankroll Input | ❌ No | ✅ Yes |
| Expected Value (EV) | ❌ No | ✅ Yes |
| Kelly Staking Plan | ❌ No | ✅ Yes |
| Combined Odds | ❌ No | ✅ Yes |
📐 Calculation Formulas
Understanding the math behind the Heinz Flag helps in realizing why the total stake is so high and how the returns compound.
The Structure (87 Bets)
The wager is composed of two distinct parts:
- Heinz (57 Bets):
- 15 Doubles
- 20 Trebles
- 15 Four-Folds
- 6 Five-Folds
- 1 Six-Fold accumulator
- Flag / SSA (30 Bets):
- 15 pairs of selections (e.g., A & B, A & C…).
- Each pair is 2 bets: “A to win, if successful stake on B” and “B to win, if successful stake on A”.
- Total SSA Bets: 15 pairs × 2 = 30 bets.
Expected Value Formula (Pro Mode)
The calculator uses the entered “Win Probability” to determine the fair value of the bet.
EV = (Probability of Win × Potential Profit) – (Probability of Loss × Stake)
For a multi-leg system like this, the EV is calculated on the aggregate of all 87 sub-bets based on the combined probability.
Why use SSA? Single Stakes About (SSA) bets are unique. If Selection A wins at 3.0 odds, the original stake is returned, and a new stake is placed on Selection B. If B loses, you still retain the profit from the “Single” part of the bet on A. This retention mechanism isn’t possible in a standard Double.
📝 Practical Examples
Here are varied scenarios to demonstrate how the Heinz Flag performs under different conditions, using both Basic and Pro modes.
Example 1: The Perfect Day (Basic Mode)
- Scenario: You pick 6 favorites in horse racing.
- Inputs: Stake $1. Odds: 2.0, 2.0, 2.0, 2.0, 2.0, 2.0. Status: All Wins.
- Calculation: 87 winning bets compounding at 2.0 odds.
- Result: Total Return ~$1,300+. Net Profit ~$1,200+.
- Interpretation: When all legs land, the multipliers in the 5-folds and 6-fold create exponential growth.
Example 2: Two Losses (Basic Mode)
- Scenario: 4 winners, 2 losers.
- Inputs: Stake $1. Odds: 3.0 flat. 4 Wins, 2 Losses.
- Result: The 5-folds and 6-fold are dead. You win returns on lower-level doubles, trebles, and 4-folds involving the winners, plus successful SSA pairs.
- Interpretation: You will likely still make a profit due to the high volume of winning trebles and doubles, but the “jackpot” element is gone.
Example 3: Disaster Mitigation (Basic Mode)
- Scenario: Only 2 winners out of 6.
- Inputs: Stake $1. Odds: 5.0 (Longshots). 2 Wins, 4 Losses.
- Result: Most bets lose. However, the one Double between the winners pays, and the SSA pair between them pays.
- Interpretation: With high odds (5.0), the return from the limited winning bets might cover the $87 stake, proving the “insurance” value of the bet.
Example 4: Optimal Staking (Pro Mode)
- Scenario: You have a $1,000 bankroll and a 55% win rate.
- Inputs: Bankroll $1000, Win Prob 55%, Odds 2.0 average.
- Result: The calculator recommends a specific “Quarter Kelly” stake (e.g., $0.50 unit stake).
- Interpretation: Even if you are confident, full Kelly might suggest a stake too high for variance. The calculator guides you to a safer bet size (Quarter Kelly) to preserve capital.
Best Practice: Always use the “Quarter Kelly” recommendation for system bets. The variance in a 6-leg multiple is extremely high, and aggressive staking can deplete a bankroll quickly during a losing streak.
Example 5: Negative EV Warning (Pro Mode)
- Scenario: Betting on favorites with poor odds.
- Inputs: Odds 1.5 flat. Win Prob 60%.
- Calculation: The combined probability of winning usually drops faster than the payout accumulation at low odds.
- Result: EV displays as negative (Red).
- Interpretation: The calculator warns you that despite a high win probability per horse, the odds offered (1.5) do not justify the risk of an 87-unit wager.
Example 6: The Longshot Value (Pro Mode)
- Scenario: 6 Underdogs with 20% win chance but 8.0 odds.
- Inputs: Odds 8.0. Win Prob 20%.
- Result: High Positive EV.
- Interpretation: While the chance of hitting all 6 is microscopic, the massive payout justifies a very small unit stake according to EV calculations.
Example 7: Bankroll Growth Strategy (Pro Mode)
- Scenario: Consistent grinding.
- Inputs: Bankroll $5000. ROI monitoring.
- Result: You input yesterday’s result. The ROI metric updates.
- Interpretation: You use the tool to track if your Heinz Flag strategy is beating the bookie’s hold over time.
Example 8: High Variance Reality (Pro Mode)
- Scenario: Comparing Full Kelly vs. Quarter Kelly.
- Inputs: High odds (4.0). Moderate probability.
- Result: Full Kelly suggests betting $200 (Total). Quarter Kelly suggests $50.
- Interpretation: The tool visually demonstrates the risk. A losing streak of 5 attempts at Full Kelly would bankrupt you, whereas Quarter Kelly keeps you in the game.
💡 Tips & Best Practices
For Basic Mode Users
- Check Non-Runners: If a horse is scratched, bookmakers usually treat it as a “Void” or “Non-Runner.” In a Heinz Flag, this reduces the bet complexity but keeps the wager alive.
- Mind the Unit Stake: It is the most common mistake to enter “10” thinking you are betting $10 total. You are betting $870. Always double-check.
- Shop for Odds: Since you have 87 bets multiplying odds, even a small difference (e.g., 2.1 vs 2.0) makes a massive difference in the final 6-fold payout.
For Pro Mode Users
- Input Accurate Probabilities: The “Win Prob %” field drives the EV and Kelly calculations. Be honest with your strike rate; overestimating it will lead to dangerous staking advice.
- Use Quarter Kelly: System bets have massive “swings.” Using Quarter Kelly dampens the volatility, protecting your bankroll from long losing streaks.
- Analyze the Break-Even Point: Use the calculator to determine how many winners you need at your average odds just to get your $87 stake back.
“The goal of the professional bettor is not to win every bet, but to ensure that the mathematical expectation of their portfolio is positive. The Heinz Flag calculator is your compass for finding that positive expectation.”
⚠️ Common Mistakes to Avoid
The Mistake: Treating Unit Stake as Total Stake
The Fix: Remember the multiplier is 87x. If you want to bet $50 total, calculate $50 / 87 = $0.57 per unit.
The Mistake: Ignoring Correlation
The Fix: Do not place a Heinz Flag on related contingencies (e.g., same horse to win two different races, or a team to win half-time and full-time). Bookmakers will often void these or settle them at reduced odds.
Critical Error: Never use “Full Kelly” sizing on a 6-leg system bet without an enormous bankroll. The variance is too high, and a standard run of bad luck will result in a “Risk of Ruin” approaching 100%.
The Mistake: Chasing Losses with Pro Mode
The Fix: Just because Pro Mode suggests a stake based on bankroll doesn’t mean you should bet if the EV is negative. If the EV is red, do not bet, regardless of what the Kelly fraction says.
The Mistake: Overlooking SSA Mechanics
The Fix: Beginners often think SSA is just “more bets.” Remember that SSA requires the first selection to win to fund the second. It is not a standard double. Use the calculator’s breakdown to see how much profit comes specifically from SSA vs. the Heinz accumulator.
🎯 When to Use This Calculator
The Heinz Flag Calculator is most effective when you have identified value across a wide card of events, typically in Horse Racing or Greyhound Racing. It is less common in football (soccer) betting due to the lower odds usually found in match results, which don’t compound as aggressively.
Use Basic Mode on race day when you are at the track or watching live and need a quick computation of your potential returns based on changing odds. It is fast, efficient, and gives you the “bottom line” immediately.
Use Pro Mode during your handicap research phase (the night before). This is when you have time to assess your bankroll, estimate the true win probabilities of your selections, and determine if the Heinz Flag structure offers a positive Expected Value compared to placing singles or a standard accumulator.
Constraint: The complexity of the Heinz Flag makes it manually impossible to calculate “If Cash” scenarios on the fly. Without this calculator, you are essentially guessing your potential returns, which is a surefire way to mismanage your bankroll.
🔗 Related Calculators
- Heinz Bet Calculator (57 bets, no SSA)
- Super Heinz Calculator (7 selections)
- Lucky 63 Calculator (6 selections with Singles)
- Union Jack Trebles Calculator
- Kelly Criterion Calculator
📖 Glossary
- Unit Stake: The amount wagered on one single bet within the system.
- Leg: One individual selection (e.g., one horse in one race).
- SSA (Single Stakes About): A pair of bets where the stake for the second part is derived from the winnings of the first part.
- Return: The total money paid out by the bookmaker (Stake + Profit).
- Bankroll: (Pro) The total amount of money set aside exclusively for betting.
- EV (Expected Value): (Pro) The average amount one expects to win or lose per bet if the same bet were made many times.
- Kelly Criterion: (Pro) A formula used to determine the optimal size of a series of bets to maximize wealth growth.
- Vig / Juice: The commission charged by a bookmaker, implied in the odds.
- Variance: A measure of how much the results can differ from the expectation. High variance means bigger swings (wins and losses).
❓ FAQ
What is the difference between a Heinz and a Heinz Flag?
A standard Heinz consists of 57 bets covering doubles and up. A Heinz Flag adds 15 pairs of “Single Stakes About” (SSA) bets. Since each SSA pair is 2 bets, this adds 30 bets total, making the Heinz Flag an 87-bet wager.
What is Pro mode and when should I use it?
Pro mode is an advanced view that unlocks bankroll management tools. You should use it when you want to ensure your betting habits are sustainable. It helps you calculate if a bet has positive value (EV) and how much of your bankroll you should risk based on your edge.
Do all 6 selections need to win for a return?
No. You can generate a return with as few as 2 winning selections (specifically if they form a winning Double or SSA pair). However, to make a profit over the cost of the 87 bets, you typically need 3 or 4 winners depending on the odds.
What is the Kelly Criterion and how does it help?
The Kelly Criterion is a mathematical formula found in Pro Mode that calculates the optimal bet size. It balances the potential growth of your bankroll against the risk of going broke. In system bets like this, using a “Fractional Kelly” (like Quarter Kelly) is highly recommended to manage volatility.
Can I use this for Each-Way betting?
This specific calculator is designed for Win-only markets. Each-Way Heinz Flags involve double the number of bets (174 bets), as they cover both the Win and Place markets. You would need a specific Each-Way calculator for that.
⚖️ Legal Disclaimer
The information and tools provided by the Heinz Flag Calculator are for educational and entertainment purposes only. While every effort is made to ensure the accuracy of the calculations (including EV and Kelly Criterion metrics), we cannot guarantee they are free from errors.
Betting involves significant risk, and it is possible to lose your entire initial stake. The “Pro Mode” features, such as Expected Value and Risk of Ruin estimations, are theoretical models and do not guarantee future profits or protect against losses.
Users are responsible for verifying all odds and payouts with their respective bookmakers before placing any wagers. Variations in bookmaker rules regarding void bets, non-runners, and dead heats may affect final returns.
Please gamble responsibly. If you or someone you know has a gambling problem, seek help from professional organizations in your jurisdiction.








