How many results did the GT1 Winning Team No. 50 Larbre Compétition on the Algarve circuit?
CREATE TABLE "table1_24865763_2" (
  "rnd" real,
  "circuit" text,
  "lmp1_winning_team" text,
  "lmp2_winning_team" text,
  "flm_winning_team" text,
  "gt1_winning_team" text,
  "gt2_winning_team" text,
  "results" text
);
SELECT COUNT("results") FROM "table1_24865763_2" WHERE "circuit"='Algarve' AND "gt1_winning_team"='No. 50 Larbre Compétition';