The 26-year-old O'Brien , who won the ATP Tour stop in New Haven last week , has now won 18 of his last 20 matches , dating back to qualifying rounds in Los Angeles in late July .
<response> The 26-year-old <person>O'Brien</person> , who won the <misc>ATP Tour</misc> stop in <location>New Haven</location> last week , has now won 18 of his last 20 matches , dating back to qualifying rounds in <location>Los Angeles</location> in late July . </response>