CREATE TABLE table_204_48 (id DECIMAL, "date" TEXT, "race name" TEXT, "location" TEXT, "uci rating" TEXT, "winner" TEXT, "team" TEXT)

in which race did nathan brown receive his victory during 2013 ?
SELECT "race name" FROM table_204_48 WHERE "winner" = 'nathan brown'
SELECT "race name" FROM "table_204_48" WHERE "winner" = 'nathan brown'