Most bettors chase the flash of a knockout, ignore the math, and end up flat-lined.

Why Size Matters

Imagine your bankroll as a fighting weight class. Throw a 200-pound jab when you’re a featherweight, and you’ll be knocked out before round one.

Step 1 – Define Your Base Unit

Pick a flat percentage — usually 1-2% of total bankroll — for every single wager. This isn’t a suggestion; it’s the law of sustainable betting.

Step 2 – Adjust for Confidence

High confidence? Double the unit. Low confidence? Stick to the base. No “maybe-maybe” middle ground; you either trust the odds or you don’t.

Step 3 – Factor in Odds Volatility

UFC odds swing like a wild swing-king. When the line moves more than 5%, cut the unit in half. When it steadies, keep the unit steady.

Step 4 – Use the Kelly Criterion Sparingly

Kelly is a razor; it can slice your bankroll or your sanity. Apply a half-Kelly to stay aggressive without going berserk.

Step 5 – Recalculate After Every Fight

Bankroll changes after each result. Re-run the unit calculation, don’t cling to yesterday’s numbers like a stale punch.

Real-World Example

Bankroll: $5,000. Base unit: 1.5% = $75. You spot a fight with a 2.5 % edge. Apply half-Kelly: $75 × 2.5 = $187.5. Round down to $180. That’s your stake.

Common Pitfalls

Betting the “big fight” with a 10% unit? You just signed a one-way ticket to bust.

Chasing losses by inflating the unit? That’s a classic revenge spiral — don’t feed the beast.

Psychology Check

Confidence is a muscle; over-training leads to strain. Keep your betting muscles lean and adaptable.

Tools and Tracking

Spreadsheet, notebook, or an app — any method that forces you to log each stake, outcome, and unit recalculation.

Final Piece of Actionable Advice

Pick your base unit, stick to it, and re-size after every fight; that’s the only way to keep the lights on.