Rules change is bound to affect games played. In 2010, the International Basketball Federation (FIBA) announced the distance increase of the 3-point line position from 6.25 m to 6.75 m in order to keep up with the playing rules of the National Basketball Association (NBA) of the American professional basketball league. The Super Basketball League (SBL) of Taiwan adopted the new 3-point line regulation in season 8 (2010-2011). The purpose of the study was to examine the influence of implementing the new 3-point line regulation to the game performance of the SBL teams. The offensive and defensive statistics of 420 games from seasons 6, 7, 8, and 9 (2008-2012) of 7 teams were analyzed. All the performance statistics were downloaded from the official SBL website, and the ANOVA was used to perform the statistical analyses in percentage of each team over 4 seasons. The results showed that the number of 3-p field goal attempts, the number of 3-p field goals made, and the percentage of the 3-p field goals from the post-rule-change seasons were significantly lower than those from the pre-rule-change seasons, therefore the points scored with 3-p field goals from the post-rule-change seasons were significantly lower than the previous 2 seasons. The number of 2-p field goal attempts was significantly increased in the post-rule-change seasons. However, the significant drop of the 2-p field goal percentage from pre- to post-rule-change seasons did not help to increase the number of 2-p field goals made. As a result, the overall game scores were decreased for the pos t- rule-change seasons. In conclusion, the SBL team performances were influenced by the implementation of the new 3-point line regulation, especially in the number of field goal attempts and field goal percentages from 2-p and 3-p ranges. The training program of the SBL teams should be adjusted to cope with the new regulation in order to maintain a high performance of basketball games.