# Archive: Odds Calculation Subscribe to Odds Calculation

## What is the Ideal Sample Size for Accurate Predictions?

A common problem faced by data analysts is to decide upon the required sample size. This can be estimated by using various calculations and distribution functions. However, even if a statistician is readily available, the answer is not necessarily...

## Betting Odds Converter – Fractional, Decimal, Moneyline, Hong Kong, Indonesian, and Malay

Quick Odds Converter to switch odds between US, decimal, fractional, percentage, Hong Kong, Indonesian, and Malay formats – converts odds into their implied probabilities and net returns, and vice versa – converts probabilities and...

## 1×2 Full-Time Table of Records – Value Bet Detector with H2H history

The 1×2 Full-Time table of records is a compilation of HDA data from 417 completed Value Bet Detector spreadsheets from 24 countries around the world. (League games with H2H history). The data set represents a statistically significant...

## How Bookmakers’ Odds Match Public Opinion

A question we often receive from readers is why the Value Bet Detector requires 10 years’ head-to-head (H2H) data and why it is optimised to address matches where there has been a minimum of six H2H meetings in this time frame. Image:...

## 1×2 Betting System: Analysis of HDA Data and Strategy Development – LAY THE DRAW

Numerous Web sites and forums pay homage to the Lay The Draw strategy with prolific threads from supporters claiming to have found extremely lucrative 1×2 betting systems. Therefore, I have decided to explore lay the draw betting in detail...

## Calculating Odds for League Newcomers is Unpredictable

We often receive queries asking how to calculate odds for league newcomers and why we don’t develop a Value Bet Calculator for league matches involving teams without head-to-head (H2H) history, or their respective last 25 matches being in...

## Correct Assignment of Football Data to Levels of Measurement

In statistics, information is collected using qualitative or quantitative data. The collected data is then organised using scales or levels in order to classify the data correctly because not every set of data is of equal value and can be analysed...

## How is Overround Calculated and what are the Benefits of Removing it from the Betting Odds?

Simply put, overround is the bookmaker’s profit margin. Overround percentages vary and usually average between 4 and 7%, depending on the bookmaker. Although bookmaker odds do not always fully represent the ‘true’ (expected)...

## When to Back Instead of Lay Betting: Asian Handicap; Double Chance; Dutching…

This article explores the alternatives to laying at the betting exchanges in order to bet against a result. Every bettor should try to optimise the financial return from his/her risk, which means finding absolutely the best prices available. Of...

## True Odds & Value Detector: International Club Competitions (with no head-to-head history)

This spreadsheet contains the calculations for international club tournaments between teams with no head-to-head history, applicable for competitions such as the UEFA Champions League, Europa League, or even the South American Copa Libertadores. The...