CREATE TABLE table_19755 ("Result" TEXT, "Date" TEXT, "Race" TEXT, "Venue" TEXT, "Group" TEXT, "Distance" TEXT, "Weight  ( kg ) " TEXT, "Jockey" TEXT, "Winner/2nd" TEXT)

How many jockeys are listed running at the Sir Rupert Clarke Stakes?
SELECT COUNT("Jockey") FROM table_19755 WHERE "Race" = 'Sir Rupert Clarke Stakes'
SELECT COUNT("Jockey") FROM "table_19755" WHERE "Race" = 'Sir Rupert Clarke Stakes'