# Understanding Variance in Betting: A Deep Dive into Statistical Measurement

In the dynamic world of betting, understanding statistical concepts is crucial for making informed decisions. One such concept that holds significant importance is variance. In this video, we delved into the intricacies of variance, exploring its mathematical definition, practical implications in professional betting, and its role in handling losing periods.

What is Variance?

Variance, in a statistical context, measures the spread between numbers in a dataset. Mathematically, it is the sum of the squared differences between each observed value and the mean of all observed values, divided by the number of observations minus one. In simpler terms, it gauges how far individual outcomes deviate from the expected average.

The Coin Toss Example:

To illustrate variance, let’s consider the classic example of a fair coin toss. Imagine a scenario where you bet on the outcome of 10 coin tosses, with a favorable risk-reward ratio. While the average outcome over many trials might be profitable, individual simulations can result in losses. This phenomenon is what variance helps us understand.

– Out of 17,000 simulations, the average profit was five pounds, showcasing the expected positive outcome.

– However, individual simulations demonstrated diverse results, including losing streaks and occasional substantial wins.

Handling Variance in Betting:

Variance is particularly crucial in professional betting, where sustained strategies can face periods of losses. Understanding and managing variance is key to long-term success. Here’s how it plays out:

1. Loss Aversion: Losses often feel more impactful than wins, a phenomenon known as loss aversion. Professional bettors must overcome the emotional impact of losing periods, focusing on the overall strategy’s expected value.
2. Sample Size Matters: Increasing the sample size of bets helps iron out variance. The more times a strategy is repeated, the closer the actual results tend to be to the expected average. This is evident in simulations, where running a bet 100 times significantly reduces the impact of variance.
3. Real-World Example – Win Both Halves Bets: A real-world application of understanding variance is demonstrated in monitoring “Win Both Halves” bets. Tracking the return on investment (ROI) over 1,000 bets revealed a dramatic improvement compared to reporting after just 400 bets. This emphasizes the importance of a sufficiently large sample size in assessing the true performance of a betting strategy.

Golf Tracker Success:

At Bookie Bashing, we apply these principles to our unique trackers, such as the Golf Tracker. Over 2,000 bets, the tracker showcased consistent growth, turning a starting capital of £1,000 into over £12,000. This success underscores the effectiveness of strategies in handling variance over an extended period.

Check our Golf Tracker results here: Results

Variance is an inherent aspect of betting, and understanding its dynamics is vital for success. Through statistical analysis, real-world examples, and practical insights, this blog has shed light on the role of variance in the betting world. As professional bettors, embracing variance, increasing sample sizes, and staying committed to proven strategies are keys to navigating the complexities of the betting landscape.