CREATE TABLE table_36227 ("Date" TEXT, "Race" TEXT, "Race track" TEXT, "Category" TEXT, "Lap length" TEXT)

What is the Race on July 30, 1950 with a Formula 2 Fia, non-championship?
SELECT "Race" FROM table_36227 WHERE "Category" = 'formula 2 fia, non-championship' AND "Date" = 'july 30, 1950'
SELECT "Race" FROM "table_36227" WHERE "Category" = 'formula 2 fia, non-championship' AND "Date" = 'july 30, 1950'