Importance of the point counts in the service games of Novak Djokovic in tennis

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Bibliographic Information

Other Title
  • テニスのノバク・ジョコビッチ選手のサービスゲームにおける各ポイントカウントの重要度

Abstract

Theoretically, the importance of each point count is different in tennis, but there is no study for a specific player so far. The purpose of the present study was to examine the importance of the point counts in the service games of Novak Djokovic who was men’s world ranking No.1 player and to find out the problems that Djokovic has to work on. The analysis subject were 67 men’s singles matches (176 sets, 827 games, 4,761 points) in Davis cup, Gland Slams, ATP Tour Finals and Masters 1000 played at hard-court from January 2018 to January 2020. The results were as follows: The set of top five high important point counts and the set of top four low important point counts agreed with the theoretical ones given that the point won rate was constant regardless of the status. However, the importance of 0-40 was 0.286 which was lower than the theoretical value 0.403 and even if the next point was won, the game won rate was 11.7% lower than the theoretical value. Moreover, in every top five important point counts, the point won rates were lower than the theoretically expected values in spite of the fact that the game won rate should become higher when points are won.

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Details 詳細情報について

  • CRID
    1390011705227334400
  • DOI
    10.34518/rjsp.14.0_184
  • ISSN
    21871787
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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