Ivan Lendl (Czech pronunciation: [ˈɪvan ˈlɛndl̩]; born March 7, 1960) is a retired Czech-American professional tennis player. He was the world No. 1 for 270 weeks in the 1980s and finished his career with 94 singles titles. At the majors he won eight titles and was runner-up a record 11 times. He also won seven year-end championships.
Lendl pioneered a new style of tennis; his game was built around his forehand, hit hard with heavy topspin, and his success is cited as a primary influence in popularizing the currently common playing style of aggressive baseline power tennis. After retirement he became a tennis coach of multiple players, and has helped Andy Murray win three major titles and reach the No. 1 ranking.