The present paper will show the behavior of the participants of the tennis sports in the leisure time with the variables of the source of the information, the time for playing, and the frequency of playing. The relation between these variables and the consumer will be also shown. Theanalytical results are as follows: the main soruces of the information for the participants are theirown experiences and the introduction from relatives or friends; the playing time is almost in themorning; on average they play tennis more than nine times per month. This shows that the tennissport is popular in Tainan.