Does the draw day change what Lotto 6/49 produces?
A Wednesday Lotto 6/49 draw has averaged 25.16 against 25.39 on Saturday, a difference of -0.23. Chance predicts 0.00.
The two nights do not cover the same stretch of history: Saturday has 2,314 draws going back to 1982-06-12, Wednesday has 2,144 since 1985-09-11. The pool has not changed in that time, so chance predicts no difference between them at all.
What was measured read from the dates
The draw nights are counted from the dates themselves, not assumed. This record holds 2 nights: Saturday 2,314, Wednesday 2,144.
The schedule is the denominator, and it is uneven. Setting a number's count on one night against half of its appearances would make every number look like a Saturday number, because that night simply held more draws. Each expectation here is instead summed draw by draw from the pool of the draw it belongs to, over exactly the draws a number was eligible for. A number that only entered the pool later is measured against the nights that ran after it arrived, not against the whole record.
Each night 4,458 draws
| Night | Draws | Since | Average | Chance | SE |
|---|---|---|---|---|---|
| Saturday | 2,314 | 1982-06-12 | 25.39 | 25.00 | +3.41 |
| Wednesday | 2,144 | 1985-09-11 | 25.16 | 25.00 | +1.33 |
Red marks a figure outside the range ordinary variation produces
The Chance column is not the same for every night, and that is the whole point. It is the average of 6/pool arithmetic over the draws that night actually held, so a night whose record reaches further back carries whatever pool sizes were in force then. Comparing the nights against one shared figure would manufacture a difference that is only the calendar.
Numbers that lean one way 49 ranked
| Number | Seen | On Wednesday | Share | Chance | SE |
|---|---|---|---|---|---|
| 34 | 591 | 307 | 51.9% | 48.1% | +2.93 |
| 40 | 580 | 291 | 50.2% | 48.1% | +1.88 |
| 20 | 566 | 285 | 50.4% | 48.1% | +1.48 |
| 46 | 574 | 283 | 49.3% | 48.1% | +1.35 |
| 09 | 565 | 282 | 49.9% | 48.1% | +1.28 |
| 21 | 555 | 241 | 43.4% | 48.1% | -1.42 |
| 26 | 538 | 241 | 44.8% | 48.1% | -1.42 |
| 11 | 525 | 240 | 45.7% | 48.1% | -1.48 |
| 18 | 519 | 234 | 45.1% | 48.1% | -1.88 |
| 14 | 498 | 230 | 46.2% | 48.1% | -2.14 |
The five leaning each way, out of 49 numbers read. 2 of the 49 sit outside that range. Reading 49 numbers is how that happens: at two standard errors about one in twenty lands outside by chance alone, so a handful is the price of reading 49, not a property of those numbers.
Recent trend blocks of 20 draws
result for the blockrange ordinary variation allowsoutside that range
Each point is the average number drawn across one block of 20 draws, both nights together. The band is what chance predicts for those draws from their own pools, which is why it is not a flat line: when the pool grows, the predicted average rises with it. That step is the same effect that gives the two nights different predicted averages above.
Applied to this draw draw 4458 · 2026-10-10
Draw 4458 fell on a Saturday and drew 121823272845. Its numbers average 25.50, where chance predicts 25.00 for any draw from 49 numbers. Saturday draws have averaged 25.39 over 2,314 draws.
Of its 6 numbers, 1 has come up more often on Wednesday than chance predicts: 45, and 5 more often on Saturday: 1218232728. That is a reading of the past, not a property of the numbers.
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