Japan
Every figure on this page is calculated from the game's published rules. The operator's own odds page is linked below as verification — but the working is here, on this page.
Pre-printed raffle sold in units: each ticket carries a unit/group (組) and a serial number, and one first prize is seeded per unit. In the 2024 Year-End Jumbo (1031st draw) a unit was 20,000,000 tickets, so first-prize odds were 1 in 20,000,000 per ticket; other Jumbo series use 10-million-ticket units (1 in 10,000,000).
With 20,000,000 numbers issued, one ticket's top-prize odds are 1 in 20,000,000.
Last verified: 2026-08-29