CREATE TABLE table_6229 ("Date" TEXT, "Course" TEXT, "Distance" TEXT, "Type" TEXT, "Winner" TEXT)

What is the distance for the course Civitavecchia to San Vincenzo?
SELECT "Distance" FROM table_6229 WHERE "Course" = 'civitavecchia to san vincenzo'
SELECT "Distance" FROM "table_6229" WHERE "Course" = 'civitavecchia to san vincenzo'