Historical Simulation
The Backtester lets you answer the question: "If I had played this combination for the past year, how would I have done?" Enter up to 10 combinations, set your bet type and amount, pick a date range, and the system simulates every draw to calculate your win rate, ROI, and cumulative profit or loss.
Setting Up a Test
- Combos: Enter 1-10 number combinations you want to test
- Bet Type: Choose Box (match in any order) or Straight (exact order only). Box has better odds but lower payouts.
- Bet Amount: Set from $0.50 to $10 per combo per draw
- Draw Time: Test against midday only, evening only, or both
- Date Range: Pick start and end dates to scope the simulation
Reading the Results
After running a backtest, you'll see six key metrics:
- Total Draws: Number of draws in your date range
- Win Rate: Percentage of draws where at least one combo matched
- Net P&L: Total winnings minus total amount bet
- ROI: Return on investment as a percentage
- Max Losing Streak: The longest consecutive run of losses — crucial for understanding risk
- Wins/Bets: Raw win count out of total bets placed
The P&L Chart
The cumulative P&L line chart shows your hypothetical balance over time. An upward-trending line means the combo was profitable during that period; a downward trend means losses. Pay attention to drawdowns (dips) — even profitable strategies can have painful losing streaks.
Per-Combo Breakdown
The results table breaks down performance for each combo individually. This lets you compare combos side by side: which had the best win rate? Which produced the highest payout? Which had the worst ROI? Use this to refine your selection.
Important Reminder
Past performance does not predict future results. A combo that was profitable over the last year could easily lose money next month. The Backtester is for analysis and education — use it to understand patterns and manage expectations, not as a guarantee of future profits. For more on the math behind lottery odds, read our Complete Guide to Lottery Odds.