Prize tables

A prize table splits a fixed number of rolls between prizes. Each prize owns a run of rolls as wide as its weight, biggest prize first from 0. Each winner rolls a number from 0 to one less than the total, and the run it lands in is their prize. It’s the order the Prizerail contract takes.

The default table, with 100,000 rolls:

Prize	Weight	Rolls	Odds
$100,000	1	0	1 in 100,000
$1,000	10	1 to 10	1 in 10,000
$100	400	11 to 410	1 in 250
$20	4,000	411 to 4,410	4.0%
$10	50,000	4,411 to 54,410	50.0%
$5	45,589	54,411 to 99,999	45.6%

Each winner wins $9.58 on average with this table.

Rules

• A table has at least two prizes.
• The weights must add up to the total rolls exactly, and each is a whole number above 0. The total can be up to 2,147,483,647.
• Each prize is a whole number of cents, up to $1,000,000.

Changing the table

Publish a new version from the campaign’s Prize table in the partner portal. Drawings that are still open switch to it. Drawings that have locked keep the version they locked with, and each draw’s proof names the table it used.

Large prizes

Prizes at or above the campaign’s large-prize threshold, $500 by default, aren’t sent in the automatic transfer. They’re held and paid by Prizerail by hand, and show heldForManualPayout: true in the API.