Sports Betting Bankroll Management

Pick the bankroll first, then the stake

A real bankroll is a dollar amount you have committed to a season or a year, kept separate from rent and groceries. The dollar amount should reflect what you can lose without changing how you bet. From that number you derive every stake — flat-stake percentages or Kelly fractions are both fine as long as the bankroll is honest.

Flat stakes are great for most

Betting 1–2% of bankroll per play is the standard professional approach for bettors without a calibrated edge per bet. It controls variance, avoids tilt-resizing after wins and losses, and produces clean ROI numbers. The downside is that it leaves money on the table when the edge is large.

Kelly when the edge is real

Kelly criterion sizes bets in proportion to the edge: bet more when the model has more confidence, less when it does not. Full Kelly is mathematically optimal for log growth but extremely volatile. Most professionals use half Kelly or quarter Kelly to soften the drawdowns.

Rebalance on a cadence, not a whim

Set a calendar (weekly or monthly) for recalculating the bankroll. Between checkpoints, sizing stays anchored to the last bankroll figure — not the last winning streak. This rule alone eliminates 80% of overstaking mistakes.

Common mistakes

• Sizing in 'units' without anchoring units to a real dollar bankroll.
• Doubling up after losses to 'win it back'.
• Mixing betting money with savings or rent.
• Going full Kelly on a model whose edge estimate is shaky.

NotaSportsGuru publishes each pick with a stake size derived from edge and confidence — the same Kelly-informed math used in production since 2023, with the audited ledger as proof.