Not all betting strategies feel the same, even when they are equally profitable. One of the biggest factors influencing your betting experience is the average odds you choose to bet on.
Two bettors may have identical long-term Expected Value (EV), yet one experiences relatively smooth bankroll growth while the other endures frequent and severe losing streaks.
The difference is variance.
Understanding how odds influence variance helps you choose betting strategies that match both your bankroll and your psychological tolerance for risk.
Every odds range produces its own balance of win frequency, payout size, and variance.
Generally:
Although both approaches can be profitable, the journey to long-term profit is very different.
Expected Value determines how much you expect to earn.
Variance determines how difficult it may be to earn it.
The variance of a single bet can be estimated using:
Variance = p × (1 − p) × (Decimal Odds − 1)²
Where:
The most important feature of this equation is the squared term:
(Decimal Odds − 1)²
Because this value is squared, variance increases rapidly as odds become larger.
Even when two betting strategies have similar Expected Value, higher-priced selections produce significantly greater fluctuations in results.
Consider two hypothetical betting strategies.
Variance per bet:
0.53 × 0.47 × 1² = 0.249
Variance per bet:
0.22 × 0.78 × 4² = 2.745
Although Portfolio B has the higher Expected Value, its variance is dramatically larger.
Across 500 bets, the overall standard deviation of Portfolio B is approximately 3.3 times greater than Portfolio A.
This means the second bettor should expect much larger swings in bankroll, despite having a mathematically stronger edge.
Many bettors abandon profitable strategies simply because they underestimate the effect of variance.
A strategy built around high-priced selections naturally produces longer losing streaks.
Without understanding this, a bettor may wrongly conclude that the system has stopped working.
In reality, the results may still be entirely consistent with the expected statistical behaviour of that strategy.
The higher the average odds, the greater the patience required.
For many bettors, concentrating on moderate odds provides the best balance between profitability and emotional sustainability.
An average odds range of approximately 1.70 to 3.50 offers several advantages:
This range is often easier to manage both financially and psychologically, particularly for bettors still developing their analytical models.
Just as investors diversify financial portfolios, bettors can diversify their betting portfolios.
Rather than specialising exclusively in favourites or outsiders, some bettors include selections across multiple odds ranges.
This diversification can reduce overall volatility because different types of bets contribute different patterns of wins and losses.
Although variance cannot be eliminated, spreading bets across multiple price ranges may produce a smoother overall betting experience than concentrating entirely on one extreme.
There is no universally "best" odds range.
The most suitable approach depends on:
A strategy with slightly lower Expected Value but substantially lower variance may ultimately be easier to follow consistently than a higher-EV strategy that experiences extreme swings.
Consistency often matters just as much as mathematical optimisation.
The average odds you bet at have a major influence on the amount of variance you experience. Higher odds produce larger payouts but also significantly greater fluctuations in bankroll, even when Expected Value remains positive. Lower and medium-priced selections generally create smoother betting journeys, while diversified betting across multiple odds ranges can help reduce overall volatility. Choosing an odds range that matches both your bankroll and your psychological discipline is an important part of building a sustainable long-term betting strategy.
