Here are the Vols' updated ATP Tour rankings as of Feb. 11, 2013. The Vols are listed by highest singles ranking first. The number in parenthesis denotes change from previous week.
Singles: 159 (+32)
Doubles: 175 (+17)
Note: Won his first Challenger singles title, losing only one set en route to winning the $100,000 Challenger of Dallas ... Also reached doubles final with Tennys Sandgren ... New career-best ranking in singles and doubles ... Off this week.
Singles: 217 (0)
Doubles: 139 (+17)
Note: Reached the doubles final with Rhyne Williams at the $100,000 Challenger of Dallas to achieve a new career best doubles ranking ... lost in the first round of doubles ... Off this week.
Singles: 238 (+2)
Doubles: 104 (-8)
Note: Reached the second round of the $50,000 West Lakes Challenger ... Off this week ... Playing next week in Sydney before returning to the U.S.
Singles: 854 (-3)
Doubles: 1120 (-3)
Note: Off last week ... Off this week.