CREATE TABLE table_1058 ("Stage" FLOAT, "Winner" TEXT, "General classification" TEXT, "Points classification" TEXT, "Mountains classification" TEXT, "Young rider classification" TEXT, "Team classification" TEXT, "Combativity award" TEXT)

Who won stage 18?
SELECT "Winner" FROM table_1058 WHERE "Stage" = '18'
SELECT "Winner" FROM "table_1058" WHERE "Stage" = '18'