How to use it
- Type the total prize pool in Total prize pool.
- Choose how the pool is shared. For your own split, choose My own percentages and type them with commas.
- Read the Amount for each place. The first place gets any rounding left over.
How the amounts are rounded
Each place's share is worked out in the smallest unit of the currency (cents for dollars and lira). That share is rounded down, and the few units left over go to first place. Nothing is added or lost, so the amounts always add up to the total.
The number of decimal places follows the currency's minor unit in the ISO 4217 list: two for US dollars, euros, pounds and lira, none for yen, and three for the Bahraini dinar.
Amount for place i = total × share_i, rounded down to the minor unit
Remainder = total − sum of those amounts, added to first placeWhat this calculator does not cover
- Entry fees, sponsor deductions, and taxes on prizes: subtract them from the total before entering it.
- Ties between players for a place: the split is by place, not by a tie-break rule.
- Prize rules of a particular event, which the organiser sets in its own regulations.
Worked example: 1,000 with a 50 / 30 / 20 split
The pool is 1,000.00 in US dollars, which is 100,000 cents. The shares are 50 %, 30 % and 20 %, so the first place gets 50,000 cents, the second 30,000 and the third 20,000. Nothing is left over.
With 1.00 and the custom shares 33.3, 33.3 and 33.4, each share rounds down to 33 cents, so 1 cent is left over. It goes to first place, which gets 0.34.
| Place | Share | Amount |
|---|---|---|
| 1 | 50 % | 500.00 |
| 2 | 30 % | 300.00 |
| 3 | 20 % | 200.00 |
Frequently asked questions
Why is the first place's amount sometimes a few cents more?
Each other amount is rounded down to the smallest unit of the currency, so a few units are left over. They go to first place, so the total is exact and nothing is lost.
Which currency does the calculator use?
It uses the currency of the page. The number of decimal places follows the ISO 4217 minor unit, for example two for US dollars and none for Japanese yen.
Can I split the pool among more than three places?
Yes. Choose my own percentages and type as many numbers as there are places, up to twenty, separated by commas.
What does winner takes all mean here?
The first place receives the whole pool and no other place receives a prize. The table shows one place.
Why does my list give an error?
The percentages must be numbers with up to two decimals, separated by commas, and must add up to exactly 100. Check for a missing comma or a total that is not 100.
Sources
Figures and text last checked on Tuesday, November 10, 2026.