CREATE TABLE table_204_409 (id DECIMAL, "date" TEXT, "race name" TEXT, "location" TEXT, "uci rating" DECIMAL, "winner" TEXT, "team" TEXT)

which was the only race held in cameroon ?
SELECT "race name" FROM table_204_409 WHERE "location" = 'cameroon'
SELECT "race name" FROM "table_204_409" WHERE "location" = 'cameroon'