CREATE TABLE table_203_565 (id DECIMAL, "wrestlers" TEXT, "times" DECIMAL, "date" TEXT, "location" TEXT, "notes" TEXT)

which location was used the most often ?
SELECT "location" FROM table_203_565 GROUP BY "location" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "location" FROM "table_203_565" GROUP BY "location" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1