What Championship has an Opponent in the final of aaron krickstein, and a Score in the final of 7–5, 6–2?
CREATE TABLE "singles_40_20_20" (
  "outcome" text,
  "date" real,
  "championship" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score_in_the_final" text
);
SELECT "championship" FROM "singles_40_20_20" WHERE "opponent_in_the_final"='aaron krickstein' AND "score_in_the_final"='7–5, 6–2';