PT - JOURNAL ARTICLE AU - H Brody TI - Unforced errors and error reduction in tennis AID - 10.1136/bjsm.2005.023432 DP - 2006 May 01 TA - British Journal of Sports Medicine PG - 397--400 VI - 40 IP - 5 4099 - http://bjsm.bmj.com/content/40/5/397.short 4100 - http://bjsm.bmj.com/content/40/5/397.full SO - Br J Sports Med2006 May 01; 40 AB - Only at the highest level of tennis is the number of winners comparable to the number of unforced errors. As the average player loses many more points due to unforced errors than due to winners by an opponent, if the rate of unforced errors can be reduced, it should lead to an increase in points won. This article shows how players can improve their game by understanding and applying the laws of physics to reduce the number of unforced errors.