CREATE TABLE "singles_performance_timeline" (
  "tournament" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text,
  "2012" text
);

Question: What's was the 2008 during the Year End Ranking?
SQL: SELECT "2008" FROM "singles_performance_timeline" WHERE "tournament"='year end ranking';

Question: What's the 2010 when Q2 happened in 2011?
SQL: SELECT "2010" FROM "singles_performance_timeline" WHERE "2011"='q2';

Question: What's the 2008 when 1R happened in 2009?
SQL: SELECT "2008" FROM "singles_performance_timeline" WHERE "2009"='1r';