CREATE TABLE "doubles_performance_timeline" (
  "tournament" text,
  "1990" text,
  "1991" text,
  "1992" text,
  "1993" text,
  "1994" text,
  "1995" text,
  "1996" text,
  "1997" text,
  "1998" text,
  "career_sr" text
);

Question: In 1994 what tournament held a ATP masters series
SQL: SELECT "1994" FROM "doubles_performance_timeline" WHERE "tournament"='atp masters series';

Question: What is the Career SR of the year that held the masters series Sr tournament
SQL: SELECT "career_sr" FROM "doubles_performance_timeline" WHERE "tournament"='masters series sr';