Winstreak Calculator

Calculate exactly how hard a 100 win streak really is.

Plug in a win rate, choose a target streak, and see both the average wait and the exact chance of hitting that streak inside a fixed volume of games.

100 target ws

100,000 games to play

Inputs

Use a preset as a starting point, then tune the exact rate you want to test.

Quick preset Win rate (%) Target streak Games to play

Notes: the streak chance is exact, not a rough block approximation. It counts overlapping streaks across the full run of games you enter.

Calculating your streak odds.

Average Games To First Streak - Expected wait until the first hit.

Chance Within That Many Games - Probability of seeing at least one target streak.

One Fresh 100-Game Block - Only the odds that one uninterrupted block is perfect.

Chance Of Missing It - Probability that the streak never appears.

Pick a win rate and a number of games to play.

The calculator shows the chance of getting at least one streak of that length in that run.