Name the sports 2.0 winning team for hap sharp and castle rock
CREATE TABLE "table1_27561503_2" (
  "rnd" real,
  "circuit" text,
  "sports_2_0_winning_team" text,
  "sports_2_0_winning_team" text,
  "gt_2_0_winning_team" text,
  "gt_2_0_winning_team" text,
  "results" text
);
SELECT "sports_2_0_winning_team" FROM "table1_27561503_2" WHERE "sports_2_0_winning_team"='Hap Sharp' AND "circuit"='Castle Rock';