Career
He played for nine years starting in 1979, reaching a career-high ranking of World Number. 35 in singles after winning the Indian Wells Masters at Louisiana Quinta in 1985 as well as three in doubles. He is one of three Stefanki brothers to have played on the varsity tennis team at the University of California, Berkeley, from 1977 until 1979 under coach Bill Wright.
Coaching
He is more renowned as a tennis coach, having trained such players as John McEnroe, Marcelo Ríos, Yevgeny Kafelnikov, and Tim Henman amongst others
Stefanki was also the coach of Fernando González, after taking over this role from Horacio de la Peña in May 2006. Under Stefanki the Chilean reached back-to-back finals in Vienna, the Madrid Masters and Basel in 2006 and the 2007 Australian Open final —a tournament in which he eased past the likes of Lleyton Hewitt, James Blake, Rafael Nadal, and Tommy Haas— which saw González, 26, reach a career-high of #5 in the Association of Tennis Professionals Rankings.
Stefanki was the coach of American tennis player Andy Roddick until his retirement in 2012. He is credited with improving Roddick"s tactics and all-court game and helping him reach the semifinals of the 2009 Australian Open, the fourth round of the 2009 French Open for the first time, the 2009 Wimbledon final for the third time, winning the 2010 Sony Ericsson Masters in Miami and the 2010 Brisbane International in Brisbane, Australia.
Stefanki has recently been working with Olympic developmental hopefuls in Los Angeles, California. Singles (1).
