CREATE TABLE table_3146 ("Result" TEXT, "Date" TEXT, "Race" TEXT, "Venue" TEXT, "Group" TEXT, "Distance" TEXT, "Weight" TEXT, "Jockey" TEXT, "Winner/2nd" TEXT)

who was the winner /2nd for the British Champion Stakes race?
SELECT "Winner/2nd" FROM table_3146 WHERE "Race" = 'British Champion Stakes'
SELECT "Winner/2nd" FROM "table_3146" WHERE "Race" = 'British Champion Stakes'