This paper examined how and the extent to which obtaining skills to meet team specific human capital is important to improve football player’s performance by comparing the top league and the second league. Based on panel data of individual players during the 2012–2016 seasons of the Japan Professional Football League (J League), we found; (1) In the top-league, changing team reduced player’s performance and their performance improved as player’s tenure of the team and also tenure of J League increased. (2) returns from acquiring team specific skills on time of play in the game increase and then decrease as years have passed. (3) benefit from moving team depends on the timing of moving, and so rookie players can benefit from moving when team tenure reach 4 years or more. (4) In the second league, neither team tenure nor experience of the professional football player does not influence player’s performance.

本文通过比较顶级联赛和第二联赛，研究了获得技能以满足团队特定人力资本的方式和程度对于提高足球运动员的表现很重要。根据日本职业橄榄球联盟（J联赛）2012-2016赛季各个球员的面板数据，我们发现；（1）在顶级联赛中，随着队员的任职期和J联赛的任期增加，更换球队会降低球员的表现，并且他们的表现也会提高。（2）随着比赛时间的增长，获得团队特定技能所获得的回报随着时间的流逝而增加，然后减少。（3）换队的好处取决于换队的时机，因此，新手球员在球队任期达到4年或以上时可以从换队中受益。（4）在第二联赛中，