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Sports betting bankroll calculator

Find your unit size, see what you risk each day, and stress-test your bankroll against a losing streak. Then see what happens to the same bankroll when you chase losses.

$

Unit size (% of bankroll per play)

Plays per day

Your unit (bet per play)

$40

Risk per day (3 plays)

$120

Win per play at -110

$36.36

Win rate to break even

52.4%

After 6 straight losses

Flat units

You've lost

$240

and still have $1,760 (88.0%). Same unit on the next play.

Chasing losses

Doubling up after every loss, you've lost

$2,000

Bankroll gone after 6 losses.

Math only, not betting advice. Results assume flat stakes at the odds entered. Bet only what you can afford to lose.

The guide

Bankroll management, plainly

The same rules behind every I Sell Winners play: a set bankroll, fixed units, one to three plays a day, and never chasing.

What is a betting bankroll?

A betting bankroll is money set aside only for betting, separate from rent, bills and savings. You size every bet from it and never top it up to chase a loss. Treat it like a business account: it can go down during a bad week, but it should never put the rest of your life at risk.

What is a unit in sports betting?

A unit is your standard bet size, usually a small, fixed percentage of your bankroll. With a $2,000 bankroll and 2% units, one unit is $40. Betting in units keeps every play the same size, so one loss never feels like a reason to bet bigger, and results are easy to track.

How much bankroll do you need for sports betting?

Ronnie recommends a minimum bankroll of $2,000 for following I Sell Winners picks. Below that, units get too small to matter and it's tempting to oversize bets. If you have less, pool a bankroll with friends, build it up, and come back ready to bet it the right way.

How big should each bet be?

A common range for disciplined bettors is 1% to 3% of the bankroll per play, kept flat rather than raised after wins or losses. At 2% on a $5,000 bankroll that's $100 a play. Re-size your unit only at set check-ins, like monthly, not in the middle of a hot or cold streak.

Why does chasing losses break bankrolls?

Chasing means raising your bet to win back what you lost, and the stakes grow fast. Doubling a $40 bet after each loss, six straight losses cost $2,520, more than a $2,000 bankroll. With flat $40 units, the same six-loss streak costs $240 and you still have $1,760 to keep playing.

What win rate do you need to make money?

At standard -110 odds you risk $110 to win $100, so you need to win 52.38% of your bets just to break even. Anything above that is profit over time; anything below is a slow loss. That's why value and discipline matter more than volume: ten coin-flip plays a day still lose to the vig.

Got the plan? Get the plays.

Every I Sell Winners pick comes with the reasoning and a unit size, one to three plays a day. Watch how it works or start in the free Telegram.

21+. Betting involves risk of loss. If it stops being fun, see our responsible gambling resources.