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The Last Decimal / The stake
Requested against placed

The stake: where a request lands

A stake is the first number in the column and the first one to be rounded. This page takes eight requests on a single market and follows each one from what the player typed to what the account placed.

Sample spec
requests
8
increment
0.10
placed
74.80
tail
0.24
the unitThe smallest amount the currency can express. In a two-decimal currency it is 0.01; the increment a stake must take is coarser and published per market.
the directionWhich way each rounding goes: down on a stake and a return, up on a duty and down on a prize. It is a rule, published, and it decides who keeps the fraction.
the volumeOne unit per event is nothing once and a figure at scale: on the samples, two thousand events of the same size retain 60.00 from the digits alone.
Direct answer

On a market with a 0.10 increment, a requested stake is rounded down to the nearest multiple of 0.10 and refused if it is below the minimum. Of eight invented requests, three land exactly, four leave a tail between 0.04 and 0.09, and one is refused. The tails total 0.24 out of 75.04 requested, which is 0.32%.

The eight requests

The market in sample B publishes a 0.10 increment and a 0.10 minimum, the finest common arrangement. Even here, most requests do not land where they were aimed.

Sample B - eight requests on one 0.10-increment market
RequestedPlacedTailWhy
5.005.000.00exact multiple
5.045.000.04rounded down
5.055.000.05rounded down
5.095.000.09rounded down
2.502.500.00exact multiple
12.3612.300.06rounded down
40.0040.000.00exact multiple
0.08--below the 0.10 minimum
75.04 requested74.80 placed0.24 tail7 of 8 placed
sample B - the tail as a whole placed = 5.00 + 5.00 + 5.00 + 5.00 + 2.50 + 12.30 + 40.00 = 74.80 requested = 5.00 + 5.04 + 5.05 + 5.09 + 2.50 + 12.36 + 40.00 = 75.04 tail = 0.04 + 0.05 + 0.09 + 0.06 = 0.24 0.24 ÷ 75.04 = 0.32% of the amount requested mean tail across the 7 placed = 0.24 ÷ 7 = 0.034 mean tail across the 4 that left one = 0.24 ÷ 4 = 0.06

The two facts that matter

First, the tail is not a fee. It is money that was never staked, so it is not charged, not refunded and not shown; it simply stays in the account, which means the account balance is not wrong and nothing needs explaining. Second, the size of the tail is decided by the digits, not by the size of the stake. A request of 40.00 leaves nothing at all, while a request of 12.36 leaves 0.06. The desk's central finding is the same one restated at volume on the volume page: a player who types round numbers pays nothing to the rounding rule and a player who types the arithmetic minimum of their own balance pays it on nearly every request.

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