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Understanding the Halo Effect

- The Halo Effect

- Lessons to learn

- Are betting judgements biased?

Learn what is the Halo Effect. How bettors make lazy judgements. Are betting judgements biased? What lessons to earn.

How bettors make lazy judgements

The Halo Effect

Learn what is the Halo Effect. How bettors make lazy judgements. Are betting judgements biased? What lessons to earn.

Most folks tend to have a better opinion of Alan than of Ben, despite the fact that the qualities listed are identical but in a reversed order. This peculiar judgment arises not from the characteristics themselves, but rather from the sequence in which they are introduced.

Instead of recognizing that the sequence of presentation is the only variation, our mind’s effortless part (often called System 1) searches for consistency in evaluations to quickly form a seamless story.


The first positive trait—Alan is smart—predisposes us to view subsequent traits in a way that supports this initial impression, and the reverse happens with Ben, perceived as jealous. This phenomenon is recognized as the Halo Effect.


It's straightforward to notice how betting decisions are influenced by the sequence in which data is presented. What’s the relevance to betting, you ask? Switch the scenario from imaginary individuals to two cricket teams or tennis players, and replace personality traits with match results or performances, and it becomes clear how betting judgments are swayed by the order of data acquisition and the weight given to specific performances.


This bias isn’t standalone; folks are also prone to the Availability Heuristic, which causes us to attribute undue importance to the most easily recalled events/ideas. Availability ties closely to how strong our emotional response to an event is, which intensifies when the events leave a lasting impression, like high-run chases or epic five-setters.


Armed with insights into the Halo Effect and Availability Heuristic, let's explore a few instances within betting where these biases manifest:

The Indian cricket team

The esteemed position of India’s national cricket team is a cut above, influenced heavily by the disproportionate regard from the betting public, not entirely based on objective evaluation. It's a fact that Team India has secured numerous victories in critical tournaments, yet their success has been intermittent, clustered in specific golden eras.


These periods of triumph, along with cricketing legends like Sachin Tendulkar and Kapil Dev, have established a 'Halo' that distorts perceptions of all Indian teams, confirmed by availability bias through easily remembered spectacular innings, particularly from famous tournaments.


While younger fans might not recall events from decades ago, the media reinforces these perceptions (confirmation bias) by continuously projecting that all Indian cricketers are exceptionally talented. This consistency in evaluation fosters a cohesive narrative: “India has produced many world-class cricketers—hence, all Indian players are top-notch.”

Interestingly, significant defeats, like those in crucial World Cup matches, could potentially diminish this long-standing Halo, albeit only slightly.


The Halo Effect also elucidates why an inordinate amount of recognition is bestowed on famous former cricketers who transition into coaching roles. There's no statistical proof that a stellar player will make an excellent coach. Sunil Gavaskar was a cricketing maestro, yet expectations from him as a coach were set unreasonably high due to his playing achievements. The Halo from his playing days leads many clubs, fans, and bettors to anticipate more than is realistically feasible when these legends manage teams. This topic gained attention with the book Moneyball and its subsequent movie adaptation.

Reverse Halo

If the first thing you notice at your vacation resort is a tattered sign, this sets a negative tone, skewing all following impressions about your stay. From a betting viewpoint, a poor performance in a match disproportionately skews future assessments.


Our intuitive mind is invaluable and incredibly potent, often safeguarding us by detecting threats. However, after Rory McIlroy surrendered a four-shot lead in the final round of the 2011 US Masters, he was labeled a failure by many. Prior to this event, he was a rising star, but one disastrous round of 80—vividly remembered due to the Availability Heuristic—shifted public opinion drastically. Bettors who maintained a more holistic view reaped benefits when he won the US Open by eight shots shortly thereafter, and the US PGA Championship in 2012.


Had these victories occurred prior to his meltdown at the Masters, judgments of his subsequent performances would have been more lenient. This is especially relevant considering McIlroy’s historical walk-off during the second round of the Honda Classic with a score of 7-over par and visibly troubled.


Lessons to Learn

Our intuitive mind is precious and immensely powerful, especially in perceiving imminent dangers. Nonetheless, it struggles with statistical evaluations. The solution is to engage our more deliberate mind (System 2) actively.


Before deciding on a bet, it's crucial to consciously seek out three counterarguments to your initial assessment and rely on as much objective data from a comprehensive sample size as possible, while disregarding simplistic narratives often propagated by mainstream media.


Bettors who delve into intriguing psychological concepts like the Halo Effect might be keen to share their newfound knowledge, yet this doesn't mean they can easily alter their tendencies to place 'Halos' on sports teams or players. The real test lies not in acquiring new facts but in evolving your understanding of situations you encounter.


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