Winning Percentage Calculator

It is wins plus half of ties, divided by total games played. With no ties it reduces to wins divided by games. A 90-72 record is 90 / 162 = 0.5556, shown as .556.

Each tie counts as half a win in both the top and bottom of the fraction. A 10-5-1 record is (10 + 0.5) / 16 = 10.5 / 16 = 0.65625, which the tool rounds and shows as .656.

Sports standings write rates like batting average and winning percentage without the leading zero, so 0.556 becomes .556. The Winning % card follows that convention and rounds to three decimals; the Decimal card keeps four places if you need more precision.

It adds wins, losses and ties into the total the percentage is divided by. If that total looks wrong, one of the three fields is off, since the calculator never assumes a game count you did not enter.

Yes. An equal split with no ties, such as 41-41, gives .500. Ties can also land a team there, for example a 4-4-2 record is (4 + 1) / 10 = .500.

Each field accepts whole numbers from 0 up to 500, which covers a full season in any major sport. You cannot enter a negative value, and at least one game must exist, so an all-zero record returns an error instead of a percentage.

No. It reports winning percentage only, which ranks teams no matter how many games each has played. Games behind and magic numbers compare two specific records and need both teams' schedules, so they are outside this tool.

A record with only wins returns 1.000, and a record with only losses returns .000. Both are valid as long as at least one game has been played.

No. The math runs in your browser as you type, so your entries stay on your device. A JSON API is also available if you want to score records in bulk from a script.