CREATE TABLE table_204_603 (id DECIMAL, "pos" TEXT, "no" DECIMAL, "rider" TEXT, "bike" TEXT, "laps" DECIMAL, "time" TEXT, "grid" DECIMAL, "points" DECIMAL)

which rider finished first ?
SELECT "rider" FROM table_204_603 WHERE "pos" = 1
SELECT "rider" FROM "table_204_603" WHERE "pos" = 1