CREATE TABLE table_37237 ("Round" FLOAT, "Date" CLOB, "Grand Prix" CLOB, "Circuit" CLOB, "125cc winner" CLOB, "250cc winner" CLOB, "MotoGP winner" CLOB, "Report" CLOB)

Which Round is the lowest one that has a Circuit of donington?
SELECT MIN("Round") FROM table_37237 WHERE "Circuit" = 'donington'
SELECT MIN("Round") FROM "table_37237" WHERE "Circuit" = 'donington'