Results Monday from the ATP Tour's $607,200 U.S. Men's Clay Court Championships at the River Oaks Country Club:
Singles
First Round
Blaz Kavcic, Slovenia, def. Denis Istomin, Uzbekistan, 6-3, 4-6, 6-3.
Wayne Odesnik, United States, def. Jerzy Janowicz, Poland, 6-3, 6-4.
