How far did the pilot go when averaging 124.1km/h?
CREATE TABLE "race_4_5_01_2010" (
  "position" real,
  "pilot" text,
  "glider" text,
  "speed" text,
  "distance" text
);
SELECT "distance" FROM "race_4_5_01_2010" WHERE "speed"='124.1km/h';