Question: What's the 2009 of the Australian Open having a 1R in 2011?
SQL: SELECT "2009" FROM "2-18504248-7" WHERE "2011" = '1R' AND "Tournament" = 'Australian Open';

Question: What's the 2008 of the Australian Open when the 2011 was 1R?
SQL: SELECT "2008" FROM "2-18504248-7" WHERE "2011" = '1R' AND "Tournament" = 'Australian Open';

Question: What's the 2008 of the US Open when 2010 was 2R and 2011 was 1R?
SQL: SELECT "2008" FROM "2-18504248-7" WHERE "2011" = '1R' AND "2010" = '2R' AND "Tournament" = 'US Open';