Lotto 6/49 · Backtesting lab
Would a strategy have beaten random selection?
Seven selection rules were run over the full 4,440-draw Lotto 6/49 history with a strict rule: when a strategy picks numbers for a draw, it only sees the draws that came before it — never the future. Results are compared against a seeded random baseline, so “beat chance” has a concrete meaning.
| Strategy | Avg matches | vs random | ≥3 match | ≥4 match | ≥5 match | Full match |
|---|---|---|---|---|---|---|
| Random baseline Picks k numbers uniformly at random each draw. | 0.725 | 0.000 | 1.61% | 0.02% | 0.00% | 0.00% |
| Most frequent Picks the k numbers drawn most often in the past. | 0.750 | +0.025 | 1.86% | 0.14% | 0.00% | 0.00% |
| Least frequent Picks the k numbers drawn least often in the past. | 0.739 | +0.014 | 1.92% | 0.14% | 0.00% | 0.00% |
| Longest gap Picks the k numbers absent for the longest. | 0.718 | -0.007 | 1.79% | 0.11% | 0.00% | 0.00% |
| Most recent Picks the k numbers drawn most recently. | 0.735 | +0.010 | 1.88% | 0.05% | 0.02% | 0.02% |
| Pair co-occurrence Greedily builds a set using the most co-occurring pairs. | 0.727 | +0.002 | 1.88% | 0.07% | 0.00% | 0.00% |
| Balanced mix Most frequent while balancing odd/even and high/low. | 0.724 | -0.000 | 1.43% | 0.14% | 0.00% | 0.00% |
How the test works
- Start after a training period of at least 20 draws.
- For each draw, every strategy picks 6 numbers using only the draws before it — the future is never visible (no lookahead).
- Count how many picked numbers matched the actual draw.
- Repeat for all 4420 evaluated draws; average the results.
Why the random baseline matters
Any strategy picks 6 of 49 numbers, so even blind luck matches about 0.72 numbers per draw. A strategy only shows anything at all if it clears that bar consistently — and on a fair lottery, none of them do. Backtest results describe the past; they change nothing about the next draw.
Dataset version 788fc571 · calculation version 1 · deterministic seeds.
What this doesn't mean
- Historical frequency and patterns do not change the probability of any future draw — every combination is equally likely.
- This tool does not predict, guarantee, or improve winning odds. Anyone claiming otherwise is selling something.
- Simulated and backtested results describe the past and model a fair random process; they are experiments, not advice.
- Lottery tickets are a form of entertainment, not an investment. Play within your means.