Robby Ginepri earned just his third ATP Tour match win since 2010 when he easily beat Xavier Malisse 6-1, 6-2 Tuesday in the opening round of the SAP Open. Ginepri, still battling back from a serious mountain bike crash, had no trouble at all while dispatching the Belgian in just 56 minutes. His victory provided some relief for home fans, with Americans scoring three wins against five losses for the day. Bulgarian qualifier Dimitar Kutrovsky beat Dennis Lajola 6-7 (7), 6-3, 7-6 (3), Luxembourg's Gilles Muller was a 2-6, 7-6 (5), 6-3 win over Tim Smyczek, Steve Darcis of Belgium defeated Scott Johnson 7-6 (4), 7-6 (5) while the all-American clash saw Denis Kudla beat Jack Sock 6-4, 6-7 (6), 6-3. In another clash of compatriots, Michael Russell beat seventh-seeded Donald Young 6-1, 7-6 (6). Ginepri was once a rising star in American tennis, winning three titles and making it to No. 15 in the rankings in 2005. But he has fallen on hard times in recent years after breaking his left elbow when he swerved to avoid a squirrel in September 2010, and dropped to 235th in the world. Dulgheru falls In Colombia, second-seeded Alexandra Dulgheru of Romania was knocked out of the first round of the Copa BBVA Colsanitas Tuesday, losing 6-2, 6-2 to Karin Knapp of Italy. Gisela Dulko of Argentina, seeded No. 5, won 1-6, 6-2, 6-4 over Kathrin Woerle of Germany, No. 3 Romina Oprandi of Switzerland defeated Alexandra Cadantu of Romania 6-2, 6-2 and No. 7 Lourdes Dominguez Lino of Spain beat Sharon Fichman of Canada 6-2, 6-2. In other matches, Hungary's Timea Babos defeated Yuliana Lizarazo of Colombia 6-0, 6-1 and Edina Gallovits-Hall of Romania won 6-4, 6-1 against Julia Cohen of the US.