Tool · Bankroll
Bankroll & Unit Sizing
A unit is a percentage of your bankroll - not a dollar amount. Pick a percentage you can sustain for a long losing streak.
All tools
Conservative · 0.5%
$5.00
Standard (1 unit) · 1.0%
$10.00
Confident (2u) · 2.0%
$20.00
Max position (3u) · 3.0%
$30.00
Why flat sizing wins long-term
Flat unit sizing (1% per bet is the most common standard) gives you the variance buffer to survive 15–20 bet losing streaks without going broke. Chasing losses with bigger stakes is the single most common reason recreational bettors blow up their bankroll.