Clark was an active partner and advisor to John Stewart up until Clark's death during the 1907 Glidden Tour.
2011 ATP Challenger Tour | 2012 ATP Challenger Tour | 2013 ATP Challenger Tour | PGA Tour | ATP World Tour 250 series | Tour de France | ATP World Tour 250 Series | 2013 ATP World Tour | 2012 ATP World Tour | 2001 ATP Tour | 2011 ATP World Tour | ATP World Tour 500 series | 2010 ATP World Tour | 2003 ATP Tour | Grand Tour | ATP World Tour Masters 1000 | 1996 ATP Tour | 2002 ATP Tour | 2013 WTA Tour | 2006 ATP Tour | World Poker Tour | 2004 ATP Tour | Champions Tour | 1990 ATP Tour | 2000 ATP Tour | Henri de la Tour d'Auvergne, Vicomte de Turenne | 1998 ATP Tour | 1997 ATP Tour | 2010 WTA Tour | 2007 ATP Tour |
Rather gentler (and more akin to modern rallying) was the Glidden Tour, run by the American Automobile Association between 1902 and 1913, which had timed legs between control points and a marking system to determine the winners.