PROBLEM TO BE SOLVED: To provide a totalizator system giving useful betting information for a fan who enjoys races throughout the entire day even if profit is small.SOLUTION: In a totalizator system, an achievement server of the past accumulates a popular order and a refund of a winning combination in each race of the past as an achievement data of the past in association with a racecourse name, weather, and a grade. When a profit rate is requested with input of a racecourse name, a grade, and weather from an input terminal, an expectation value of a profit rate is calculated in a case that the same bet type and set number are specified for a plurality of races on the basis of the achievement data of the past accumulated in association with a racecourse name, weather, and a grade so as to display it on the input terminal. Thereby new profit rate information with respect to useful betting can be provided for a fan who enjoys races throughout the entire day even if profit is small.SELECTED DRAWING: Figure 1
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