The lightest Powerball numbers by the Ball Weight method (lowest weight index): Field 1: 4 (weight 0), 7 (weight 0), 8 (weight 0), 9 (weight 0), 11 (weight 0). Field 2: 1 (weight 0).Data includes draw #1970 of 09.07.2026.
Weight is a composite index: how often a number is drawn, the difference in frequency between the two halves of the period, and depth (how many draws since it last appeared). The rarer and longer-absent a number, the “lighter” it is.
weight = a·f + b·Q + c·G
The factors are normalised, so frequency, dynamics and depth contribute on a comparable scale:
- a — the share of draws in the current half-period (f divided by the half-period length);
- Q — the absolute difference in frequency between the current and previous half-periods, b — its normalisation;
- G — the depth (how many draws ago the number first appeared in the period), c — its normalisation.
The index only orders the numbers — it does not raise their probability. In a fair lottery every combination is equally likely; the weight helps you pick numbers by a system, not predict a draw. Click a number in the table to add it to the generator.
Where to next
Number frequency
How often each Powerball number is drawn — the base value of the weight index.
OpenHit intervals
The depth and typical interval of Powerball numbers — the second component of weight.
OpenMethods summary table
A vote of nine Powerball methods: how many of them recommend each number.
OpenFrequency generator
Ready-made Powerball combinations weighted by frequency — no manual picking.
OpenFrequently Asked Questions about Powerball
What is ball weight in the Powerball lottery?
Ball weight is a composite statistical index: it combines how often a number is drawn, the difference in frequency between the two halves of the period, and depth (how recently it last appeared). Numbers are sorted from the lightest (low index) to the heaviest.
Which numbers are light and which are heavy?
Light numbers have a low index: they were drawn less often and/or long ago. Heavy numbers have a high index: drawn often and recently. This describes the past, not a forecast: weight does not affect the probability of the next Powerball draw.
Are lottery balls weighted? Does a ball's weight affect the draw?
These are DIFFERENT things. Physically, lottery balls are light (a few grams) and calibrated to equal weight so that none falls more often — deliberate weighting would be fraud and is checked by draw audits. The “ball weight” on this page is a statistical index from draw history, not grams.
Does the Ball Weight method help win Powerball?
There is no way to raise your odds: the draw is random and every combination is equally likely. The method is useful as a selection system — if you want to lean on statistics rather than pick at random. For ready-made numbers weighted by frequency, use the generator.
How many draws are needed to compute weight?
The larger the archive, the more stable the index: on a short window the weight jumps around. Premium opens the full archive to compute across all draws.