Staking Plans & the Kelly Criterion for Esports

You could be the world's best at identifying value bets, but if you stake 50% of your bankroll on each one, you will go broke. Variance is an unavoidable reality in betting. Even a bettor with a genuine 55% win rate can easily lose 10 bets in a row. A staking plan ensures your bankroll survives inevitable losing streaks so you are still in the game when your edge plays out.

Think of it this way: your ability to find value determines your theoretical profit, but your staking plan determines your actual profit. The two are equally important. A mediocre edge with excellent bankroll management will outperform a strong edge with reckless staking every time.

This guide covers the three most popular staking strategies: flat staking (simplest), percentage staking (balanced), and the Kelly Criterion (mathematically optimal). We will walk through each with real esports examples.

Flat staking is the simplest approach: you bet the same fixed amount on every bet, regardless of your confidence level or the odds.

How It Works

Choose a unit size (typically 1-3% of your bankroll). If your bankroll is $1,000 and your unit is 2%, you bet $20 on every selection. Your 15th bet is the same $20 as your first, win or lose.

Example

Bankroll: $500. Unit size: 2% = $10. You place 10 bets at average odds of 1.90, winning 6 and losing 4.

• Winnings: 6 x ($10 x 1.90) = $114
• Losses: 4 x $10 = $40
• Total outlay: 10 x $10 = $100
• Net profit: $114 - $100 = $14

Pros

• Extremely simple to implement. No calculations needed per bet.
• Emotionally easy. You never second-guess your stake size.
• Consistent. Easy to track and analyze performance.

Cons

• Does not adjust for confidence or edge size. A 2% edge and a 15% edge get the same stake.
• Does not grow with your bankroll. If your bankroll doubles, your $10 bet is now only 1%.
• Sub-optimal for long-term bankroll growth compared to more sophisticated methods.

Best for: Beginners who want simplicity while they learn. Bettors who prefer emotional detachment from stake sizing decisions.

Percentage staking means betting a fixed percentage of your current bankroll on each bet. As your bankroll grows, your stakes increase. As it shrinks, your stakes decrease automatically.

How It Works

Choose a percentage (typically 1-3%). Before each bet, calculate the stake based on your current balance.

Example with 2% percentage staking and a $1,000 starting bankroll:

• Bet 1: 2% of $1,000 = $20 stake. Win at 1.85. Bankroll: $1,017
• Bet 2: 2% of $1,017 = $20.34 stake. Lose. Bankroll: $996.66
• Bet 3: 2% of $996.66 = $19.93 stake. Win at 2.10. Bankroll: $1,018.53

Pros

• Self-adjusting. Stakes grow with wins and shrink with losses.
• Harder to go bust. As your bankroll drops, each bet gets smaller, extending your runway.
• Compound growth. Winning streaks compound your bankroll faster than flat staking.

Cons

• Still does not adjust for confidence or edge size (unless you add a confidence multiplier).
• Recovery from drawdowns is slower because stakes decrease as bankroll drops.
• Requires recalculating before each bet (minor inconvenience).

Best for: Intermediate bettors who want automatic bankroll protection with growth potential. The most popular staking method in the esports betting community.

The Kelly Criterion is a mathematical formula that determines the optimal stake size to maximize long-term bankroll growth, given your edge and the odds offered. It was developed by John L. Kelly Jr. at Bell Labs in 1956 and is used by professional bettors and investors worldwide.

The Formula

Kelly % = (bp - q) / b

Where:

• b = decimal odds - 1 (the net payout per unit staked)
• p = your estimated probability of winning
• q = your estimated probability of losing (1 - p)

Full Walkthrough Example

You estimate NAVI has a 62% chance of beating FaZe. The bookmaker offers NAVI at 1.80 decimal odds.

• b = 1.80 - 1 = 0.80
• p = 0.62
• q = 1 - 0.62 = 0.38
• Kelly % = (0.80 x 0.62 - 0.38) / 0.80
• Kelly % = (0.496 - 0.38) / 0.80
• Kelly % = 0.116 / 0.80
• Kelly % = 0.145 or 14.5%

With a $1,000 bankroll, Kelly suggests staking $145. That is an aggressive stake, which is why most bettors use fractional Kelly (see below).

Another Example: Smaller Edge

You estimate Team Spirit has a 48% chance of beating Tundra. Odds are 2.30.

• b = 2.30 - 1 = 1.30
• p = 0.48, q = 0.52
• Kelly % = (1.30 x 0.48 - 0.52) / 1.30
• Kelly % = (0.624 - 0.52) / 1.30
• Kelly % = 0.104 / 1.30
• Kelly % = 0.08 or 8%

Smaller edge, smaller recommended stake. This is the beauty of Kelly: it automatically scales stakes to your confidence.

When Kelly Says Do Not Bet

If the Kelly formula returns a negative number, the bet has negative expected value. Do not bet. For example, if your estimated probability is 40% but the odds imply 45%, Kelly returns a negative percentage. This is a powerful sanity check.

Full Kelly staking is mathematically optimal but dangerously aggressive in practice. It assumes your probability estimates are perfectly accurate, which they never are. If you overestimate your edge by even a few percentage points, full Kelly leads to ruinous over-staking.

The Solution: Fractional Kelly

Most professional bettors use a fraction of the Kelly recommendation, typically between 25% and 50%. This is called "quarter Kelly" or "half Kelly."

From our NAVI example (full Kelly = 14.5%):

• Full Kelly: 14.5% of bankroll = $145
• Half Kelly (50%): 7.25% = $72.50
• Quarter Kelly (25%): 3.625% = $36.25

Why Fractional Kelly Works Better

• Buffer for estimation errors: Your probability estimates will never be perfect. Fractional Kelly protects you when you are wrong.
• Smoother equity curve: Full Kelly produces wild swings in bankroll. Quarter Kelly produces a much smoother growth trajectory.
• Lower risk of ruin: The probability of going bust drops dramatically with fractional Kelly.
• Still outperforms flat staking: Even quarter Kelly produces better long-term growth than flat staking for bettors with a genuine edge.

Our recommendation: Start with quarter Kelly (25% of the Kelly calculation). As you gain confidence in your probability estimates through tracking, you can gradually increase to one-third or half Kelly.

A simpler alternative to Kelly is the confidence-based unit system. You rate each bet on a confidence scale (e.g., 1-5 units) and stake accordingly.

• 1 unit (low confidence): Slight edge detected. Standard bet. 1% of bankroll.
• 2 units (moderate confidence): Clear value identified. 2% of bankroll.
• 3 units (high confidence): Strong value with multiple supporting factors. 3% of bankroll.
• 4-5 units (very high confidence): Reserved for rare situations with substantial edges. 4-5% of bankroll. Used sparingly (maybe 5-10% of total bets).

The danger with this system is that it relies on subjective judgment. If you consistently rate your confidence too high, you will over-stake. Be honest and track whether your higher-confidence bets actually perform better than your lower-confidence ones.

Each staking plan has its place depending on your experience level and betting style:

For esports specifically, we recommend starting with percentage staking (2% per bet) while you build your tracking record. After 200+ tracked bets with positive results, transition to quarter Kelly to optimize your bankroll growth. The key prerequisite for Kelly is accurate probability estimation, which only comes from experience and diligent tracking.

Regardless of which staking plan you use, tracking is essential. Here are the columns your betting spreadsheet should include:

• Date - When the bet was placed
• Match - Team A vs Team B
• Game - CS2, LoL, Dota 2, Valorant
• Market - Match winner, handicap, over/under, etc.
• Selection - What you bet on
• Odds - The decimal odds at time of bet
• Closing Odds - The odds when the market closed (for CLV tracking)
• Your Estimated Probability - Your pre-bet probability estimate
• Stake - Amount wagered
• Result - Win / Loss / Push
• Profit/Loss - Net result of the bet
• Running Bankroll - Cumulative bankroll after each bet

This data allows you to calculate your ROI, CLV, win rate by game, win rate by market type, and whether your confidence-based staking actually correlates with outcomes. After 500 bets, you will have a clear picture of where your edge lies and how to optimize your approach.

For more on tracking and bankroll fundamentals, see our bankroll management guide.