CREATE TABLE table_31541 ("Year" FLOAT, "Competition" TEXT, "Venue" TEXT, "Position" TEXT, "Event" TEXT)

What year did she place 8th in the junior race?
SELECT "Year" FROM table_31541 WHERE "Event" = 'junior race' AND "Position" = '8th'
SELECT "Year" FROM "table_31541" WHERE "Event" = 'junior race' AND "Position" = '8th'