Bankroll Management for AFL Betting

Why Bankroll Management Is the Most Important Strategy

You can be the best AFL analyst in the country — but without proper bankroll management, you'll go broke. It's not a question of if bad runs happen, but when. In AFL betting, even a punter with a 55% strike rate (which is excellent) will experience losing streaks of 8–12 bets. Without the discipline to survive those streaks, your edge means nothing.

Bankroll management is the framework that keeps you in the game long enough for your skill to compound. It determines how much to bet, when to bet, and — crucially — when to stop. Professional punters treat bankroll management as their primary skill, with analysis and selection as secondary.

The 2026 AFL season runs for 23 home-and-away rounds plus 4 weeks of finals. That's 27 weeks of betting opportunities — roughly 200+ matches. Even with conservative staking, that's enough volume for your edge to show. But only if you're still solvent in September.

Unit Sizing: The Foundation

A "unit" is your standard bet size, expressed as a percentage of your total bankroll. The unit system removes emotion from staking decisions and ensures consistency.

• 1% unit (conservative): For cautious bettors or large bankrolls. A $1,000 bankroll = $10 units. Maximum recommended outlay per round: 5–8%.
• 2% unit (recommended): The sweet spot for most AFL punters. Enough to make wins meaningful, small enough to survive losing streaks. A $500 bankroll = $10 units.
• 3% unit (aggressive): For experienced bettors with proven track records and strong model edges. Higher variance, but faster growth if your edge is real.
• 5% unit (maximum): Only for bets with the strongest possible edge (20%+ edge identified by your model). Never more than one 5% bet per round. This is your "best bet of the round" stake.

Key rule: Never bet more than 10% of your bankroll in a single round, regardless of how many value plays you identify. If you find 6 value bets in one round, reduce your unit size for that round rather than exceeding 10%.

The Kelly Criterion — Simplified

The Kelly Criterion is a mathematical formula that calculates the optimal bet size based on your edge and the odds offered. It was developed for horse racing but applies perfectly to AFL betting.

The formula: Kelly % = (Edge / (Odds - 1))

Where Edge = (Your estimated probability × Odds) - 1

• Example: You estimate a team has a 55% chance of winning at $2.00. Edge = (0.55 × 2.00) - 1 = 0.10 (10% edge). Kelly % = 0.10 / (2.00 - 1) = 0.10 = 10% of bankroll.
• Half-Kelly: Full Kelly is too aggressive for most punters. The standard recommendation is to use half-Kelly (divide the result by 2), which reduces variance while capturing most of the growth. In the example above, half-Kelly = 5% of bankroll.
• Quarter-Kelly: For conservative bettors or when you're less confident in your probability estimate. Quarter-Kelly reduces variance further while still being mathematically optimal.

Important caveat: Kelly assumes your probability estimates are accurate. If your model is poorly calibrated, Kelly will tell you to bet too much. Always start with smaller stakes while you verify your model's accuracy over 50+ bets.

Ryan Tucker

Co-Founder & Lead Analyst

"I track every bet in a spreadsheet — date, match, market, odds, stake, result, P&L. After 50 bets, patterns emerge. You'll see which markets you're profitable on (maybe player props) and which you should avoid (maybe first goalscorer). Data beats gut feel. My spreadsheet told me I was losing money on SGMs with 5+ legs — so I stopped building them. Simple as that."

Tracking Results and Weekly Reviews

Without tracking, you're guessing. With tracking, you're improving. Here's what to log for every bet:

• Date and round: When was the bet placed?
• Match: Which game?
• Market type: H2H, line, over/under, SGM, futures?
• Selection and odds: What did you bet and at what price?
• Stake (units): How many units?
• Edge estimate: What did your model say the edge was?
• Result: Win or loss?
• P&L: Net profit or loss on the bet.
• Running total: Cumulative P&L for the season.

Weekly review process:

• Every Monday morning, review the previous round's results.
• Calculate your strike rate by market type (H2H, line, totals, SGM).
• Identify any market types where you're consistently losing — consider reducing exposure or eliminating them entirely.
• Check your overall ROI (Return on Investment). A positive ROI over 50+ bets means your approach is working.
• Adjust your bankroll and unit sizes monthly based on your running total. If your bankroll has grown from $500 to $600, your 2% unit is now $12.

Never Chase Losses — And Other Critical Rules

• Never chase losses: This is the cardinal rule. After a losing weekend, the temptation is to double your stakes to "get back to even." This is the fastest way to zero. Stick to your unit size regardless of recent results. The maths doesn't care about your feelings.
• Set a stop-loss: If you lose 20% of your bankroll in a single round (which should be impossible with proper unit sizing), stop betting for the rest of that round. Walk away and reset for next week.
• Separate your betting bankroll: Your betting money should be completely separate from your living expenses. If losing your bankroll would cause financial stress, your bankroll is too large. Reduce it.
• Don't bet when emotional: After your team loses, after a bad day at work, after an argument — these are times when your judgement is compromised. Only bet when you're thinking clearly and analytically.
• Review monthly, not daily: Daily P&L is noise. Weekly P&L is mostly noise. Monthly P&L starts to show trends. Seasonal P&L is where the truth lives. Don't overreact to short-term variance.
• Celebrate discipline, not wins: A skipped bad bet is a win you don't see on the ledger. If you identified three potential bets but only had strong conviction on one, staking one unit on the best play is a disciplined decision — even if the other two would have won.

Bankroll management isn't exciting. It won't give you the rush of a big multi landing. But it's the difference between recreational punting and sustainable, profitable betting over a full AFL season. Master the money, and the winning takes care of itself. For our recommended bets this week — with specific staking guidance — see our Round 3 tips.