Japan: ロト7
Reduced Wheel 19 of 37 for ロト7 — guarantee 3
35 combinations instead of 50388 in the full wheel 19 of 37. Guarantee 3 when 7 of 37 are matched — 100% fewer tickets.
A reduced wheel of 19 numbers is an optimized set of 35 combinations. Each combination contains 7 numbers, as required by the draw.
Guarantee: if any 3 winning numbers are among your 19 chosen numbers, at least one system combination will contain all 3 matches.
How to use: select exactly 19 numbers in the field below (or click "Random"), then click "Create System".
Full system
50 388
combinations C(19, 7)
Wheel system
35
combinations with guaranteed 3-match
Savings
100%
50 353 fewer combinations
Select numbers
Select 19 numbers
Selected 0 of 19
Select exactly 19 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 19 numbers.
Use past draw statistics, hot or cold numbers for selection, or click "Random".
Wheel System
Lottery system with 19 numbers and guaranteed 3-match
Select 19 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 19 of 37 for ロト7
The reduced wheel contains 35 combinations (tickets) — 100% fewer than the full wheel (50388 combinations for 19 of 7). Each ticket matches the ロト7 rules: 7 numbers out of 37.
Guarantee 3 is the minimum number of matches on a single ticket that the wheel ensures if any 3 winning numbers are among your 19 picks. In that case, at least one system ticket is guaranteed to contain all 3 of those matches.
Only the full wheel of 19 numbers (50388 combinations) guarantees the jackpot. The reduced wheel trades that 100 % guarantee for a 100% ticket reduction: it guarantees at least 3 matches on one ticket whenever any 3 winning numbers fall within your 19 picks. The jackpot becomes a strong chance rather than a certainty.
Total cost = 35 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 19-of-37 wheel with guarantee 3 is roughly 100% cheaper than full coverage.