CREATE TABLE table_27259 ("Season" FLOAT, "Series" TEXT, "Team" TEXT, "Races" FLOAT, "Wins" FLOAT, "Poles" FLOAT, "F.L." FLOAT, "Podiums" FLOAT, "Points" TEXT, "Position" TEXT)

In what series did he have the 7th position?
SELECT "Series" FROM table_27259 WHERE "Position" = '7th'
SELECT "Series" FROM "table_27259" WHERE "Position" = '7th'