What shows for 2011 when 2012 is q1, and a 2010 is 4r?
CREATE TABLE "singles_performance_timeline" (
  "tournament" text,
  "2008" text,
  "2010" text,
  "2011" text,
  "2012" text,
  "2013" text
);
SELECT "2011" FROM "singles_performance_timeline" WHERE "2012"='q1' AND "2010"='4r';