How to Calculate Win Rate (and What to Do With Draws)

By KT Apps · Updated October 16, 2026

The basic win rate formula

Win rate is the share of games you won. Divide wins by games played, then multiply by 100 to get a percentage:

• Win rate (%) = wins / games played x 100

For example, 14 wins from 20 games is 14 / 20 = 0.7, or a 70% win rate. With no draws, your loss rate is simply what is left: 30%.

A win/loss ratio is something different. It divides wins by losses, so 14 wins and 6 losses is a ratio of 14 / 6, about 2.33. A ratio of 1 means as many wins as losses. Both are useful; just say which one you mean.

Three ways to handle draws

Take a record of 12 wins, 3 draws and 9 losses, 24 games in total. Depending on the method, the win rate comes out differently:

1. Count draws as half a win

(wins + draws / 2) / games = (12 + 1.5) / 24 = 0.5625, or 56.25%. This is how many chess and other board game scores work, where a draw earns half a point. It is a good default when draws are a normal result.

2. Leave draws out

wins / (wins + losses) = 12 / 21, about 57.1%. This answers "when the game had a winner, how often was it me?" It is common where draws are rare.

3. Count draws as not-wins

wins / all games = 12 / 24 = 50%. This is the strictest version: only outright wins count. It suits situations where only a win matters, such as a knockout tournament.

None of these is wrong. What matters is that you pick one method and keep using it, and that everyone in the group uses the same one before comparing numbers.

Why ten games prove very little

Short runs are noisy. Imagine two players who are exactly evenly matched, so each game is a coin flip. Over 10 games, one of them will win 7 or more about 17% of the time, purely by chance. A 70% win rate over 10 games is therefore weak evidence that someone is better.

Over 100 games the picture is much clearer. For the same evenly matched pair, winning 60 or more out of 100 happens only about 3% of the time. That is why it is worth keeping a running tally over many sessions before reading too much into a hot streak.

• Under about 20 games: treat the win rate as a talking point, not a verdict.
• Compare like with like: the same game, format and opponents.
• Write down the date range or number of games next to any win rate you quote.

Comparing win rates fairly

Win rates only compare well when the conditions are similar. A 55% win rate against strong opponents can mean more than 70% against beginners. In team games, the people on your side matter too. If you change something, such as a new deck, opening or strategy, start a fresh tally so the old results do not blur the new ones.

For a series of games played to a fixed number of wins, see best of 3, 5 and 7 series explained.

Keeping the counts

Any method works if you actually use it after every game: tally marks on paper, a notes app, or a spreadsheet with one row per game. Paper is easy to lose and hard to share; a spreadsheet can calculate the percentage for you but is slow to update between games. A counter with big buttons is the quickest to use mid-session.

Counting wins, draws and losses in Win/Lose Counter

Win/Lose Counter keeps the three counts on one screen.

1. After each game, tap WIN, DRAW or LOSS. The matching number goes up by one.
2. Tapped the wrong area? Press and hold it to subtract one.
3. Close the page between sessions if you like; the counts are saved in this browser.
4. At the end of a session, tap share to send your wins, draws and losses as text, or copy it if your browser cannot share.
5. Use the counts in one of the formulas above to work out your win rate.
6. Tap reset and confirm to start a new tally. Undo appears briefly if you reset by accident.

The counter shows raw counts and does not calculate a percentage itself, and it keeps one tally at a time. It is also available for iPhone and Android.

Frequently asked questions