CREATE TABLE table_31825 ("Rank" FLOAT, "Rider" CLOB, "Team" CLOB, "Speed" CLOB, "Time" CLOB)

What is the average speed of rider Peter Williams?
SELECT "Speed" FROM table_31825 WHERE "Rider" = 'peter williams'
SELECT "Speed" FROM "table_31825" WHERE "Rider" = 'peter williams'