Japan: ロト7
Reduced Wheel 8 of 37 for ロト7 — guarantee 6
7 combinations instead of 8 in the full wheel 8 of 37. Guarantee 6 when 7 of 37 are matched — 13% fewer tickets.
A reduced wheel of 8 numbers is an optimized set of 7 combinations. Each combination contains 7 numbers, as required by the draw.
Guarantee: if any 6 winning numbers are among your 8 chosen numbers, at least one system combination will contain all 6 matches.
How to use: select exactly 8 numbers in the field below (or click "Random"), then click "Create System".
Full system
8
combinations C(8, 7)
Wheel system
7
combinations with guaranteed 6-match
Savings
13%
1 fewer combinations
Select numbers
Select 8 numbers
Selected 0 of 8
Select exactly 8 numbers from 37 — the wheel system will be composed from them.
This is the most important step: you assume that the winning numbers of the next draw will be among these 8 numbers.
Use past draw statistics, hot or cold numbers for selection, or click "Random".
Wheel System
Lottery system with 8 numbers and guaranteed 6-match
Select 8 numbers in each field or click "Create System" — missing numbers will be chosen randomly.
G on keyboard — create system
Available with Premium
Frequently asked questions
Common questions about the reduced wheel 8 of 37 for ロト7
The reduced wheel contains 7 combinations (tickets) — 13% fewer than the full wheel (8 combinations for 8 of 7). Each ticket matches the ロト7 rules: 7 numbers out of 37.
Guarantee 6 is the minimum number of matches on a single ticket that the wheel ensures if any 6 winning numbers are among your 8 picks. In that case, at least one system ticket is guaranteed to contain all 6 of those matches.
Only the full wheel of 8 numbers (8 combinations) guarantees the jackpot. The reduced wheel trades that 100 % guarantee for a 13% ticket reduction: it guarantees at least 6 matches on one ticket whenever any 6 winning numbers fall within your 8 picks. The jackpot becomes a strong chance rather than a certainty.
Total cost = 7 tickets × the ticket price. The current ticket price and final total are shown in the boxes above on this page — values are taken from the latest ロト7 draw. On average, the 8-of-37 wheel with guarantee 6 is roughly 13% cheaper than full coverage.