CREATE TABLE table_21151 ("Season" FLOAT, "Class" TEXT, "Motorcycle" TEXT, "Team" TEXT, "Races" FLOAT, "Wins" FLOAT, "Podiums" FLOAT, "Poles" FLOAT, "FLaps" FLOAT, "Points" TEXT, "Placement" TEXT)

Name the least amount of races for 2 poles
SELECT MIN("Races") FROM table_21151 WHERE "Poles" = '2'
SELECT MIN("Races") FROM "table_21151" WHERE "Poles" = '2'