Analysis of Tennis Players’ Potential Advantages: Using Left-Handed Players and Months of Birth as Examples

本研究的主要目的是從國際網球總會 (International Tennis Federation, ITF)男子網球選手的基本資料中，探討青少年與職業網球選手的排名與慣用手和出生季別之關聯性。利用Excel VBA撰寫程式，將全部男子網球選手基本資料取回，並做最後之分析與統整。結果發現：(一)6290名ITF選手Top10與11~100名慣用左手選手的比例分別為14.44%與13.83%，100名後的左手比例隨著排名下降而降低。而4839名ATP選手Top10與11~100名慣用左手選手的比例分別為12.84%與15.13%，100名後的左手比例隨著排名下降而略微降低。(二)ITF出生第1季的Top10選手百分比皆有高於其他3季出生選手(38.99%、27.08%、23.83%與10.11%)。根據結果，本研究結論發現左手持拍的確有優勢，排名越佳選手，左手持拍百分比越高。青少年網球選手受相對年齡效應影響，年初出生選手有排名優勢，而職業選手則無影響。

關鍵字

排名；慣用手；相對年齡效應

並列摘要

This study aimed at investigating the relationships of the rankings between junior and professional players and seasons of birth from male tennis players’ basic personal information. A program was written using Excel VBA to retrieve all male tennis players’ basic personal information. The results were indicated as: (1) Among 6209 ITF players, the percentages of left-handed player ranked top 10 and 11 to 100 were 14.44% and 13.83% respectively. The number of left-handed players who were ranked after 100 went down with the ranking. As for 4839 ATP players, the percentages of left-handed player ranked top 10 and 11 to 100 were 12.84% and 15.13% respectively. The number of left-handed players ranked after 100 decreased slightly with the ranking. (2) The percentage of top 10 ITF players born in the first season of the year was higher than the players born in the other three seasons (38.99%, 27.08%, 23.83%, and 10.11%). It was concluded that left-handed players certainly have their advantages. The higher ranking the players is, the more possible to be left-handed. Compared to professional players, junior players was influenced by the age, meaning players born in the first season of the year have advantages in rankings, while the age has no impact on professional players.

並列關鍵字

ranking ； handedness ； relative age effect

國際替代計量

Analysis of Tennis Players’ Potential Advantages: Using Left-Handed Players and Months of Birth as Examples

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