CREATE TABLE table_63876 ("Rank" FLOAT, "Rider" TEXT, "Team" TEXT, "Speed" TEXT, "Time" TEXT)

What is the lowest rank of rider darren gilpin?
SELECT MIN("Rank") FROM table_63876 WHERE "Rider" = 'darren gilpin'
SELECT MIN("Rank") FROM "table_63876" WHERE "Rider" = 'darren gilpin'