The Key Differences
Powerball and Oz Lotto are Australia's two biggest jackpot games, both under The Lott. You pick 7 numbers for both, but they use very different formats that create fundamentally different games:
- Powerball: 7 from 35 + 1 Powerball from 20 = 134.5M combinations
- Oz Lotto: 7 from 47 + 3 supplementary = 62.9M combinations
This means Oz Lotto is roughly 2× easier to win at the Division 1 level. However, Powerball's harder odds mean the jackpot rolls over more frequently, creating those headline-grabbing $100M+ prizes. The choice between them comes down to a fundamental trade-off: better odds versus bigger potential prizes.
Prize Structure Comparison
Powerball has 9 prize divisions (more ways to win small amounts), while Oz Lotto has 7. The extra Powerball divisions mean you're more likely to win something from a Powerball ticket — approximately 1 in 44 chance of any prize vs 1 in 51 for Oz Lotto. This is significant for regular players: over a year of weekly play, you'd expect roughly 1 small prize from Powerball versus slightly fewer from Oz Lotto.
| Factor | Powerball | Oz Lotto |
|---|---|---|
| Div 1 Odds | 1 in 134,490,400 | 1 in 62,891,499 |
| Prize Divisions | 9 | 7 |
| Any Prize Odds | ~1 in 44 | ~1 in 51 |
| Draw Night | Thursday | Tuesday |
| Min Div 1 Prize | $3 Million | $4 Million |
| Record Jackpot | $200 Million | $112 Million |
Historical Jackpot Behaviour
Jackpot growth patterns differ significantly between the two games:
- Powerball jackpots above $50M occur roughly every 8–10 weeks
- Oz Lotto jackpots above $20M occur roughly every 6–8 weeks
- Powerball's record: $200M (February 2024) — the largest prize in Australian lottery history
- Oz Lotto's record: $112M (November 2012), with $100M reached again in February 2025
Since Powerball's 2018 format change, the average jackpot has roughly tripled. Division 1 is now won in only about 25–30% of draws, meaning the prize rolls over more than two-thirds of the time. Oz Lotto's Division 1 is won more frequently (roughly 35–40% of draws), which means its jackpots grow more slowly but start higher at $4M minimum.
Ticket Cost Comparison
Both games cost approximately the same per standard game entry ($1.10–$1.30 depending on your state). However, Powerball requires an additional Powerball number selection, while Oz Lotto is a straightforward 7-from-47 pick. System entries (which cover additional combinations) are available for both games but scale differently: a System 8 Powerball entry covers 8 main combinations but still only 1 Powerball, while a System 8 Oz Lotto entry covers 8 main combinations with all supplementary combinations included.
When to Play Each
- Play Powerball when the jackpot is high ($50M+) — the expected value per ticket increases significantly as the prize grows
- Play Oz Lotto when you want better Division 1 odds (2× more likely than Powerball) or when you prefer a higher minimum guarantee ($4M vs $3M)
- Play both when Powerball has jackpotted for several weeks and Oz Lotto is also building
Track jackpot trends and historical patterns on our Powerball analytics and Oz Lotto analytics pages. Compare number frequencies across both games to see how randomness plays out differently in each format.