CREATE TABLE table_14419 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT)

What event did he fight masato shiozawa?
SELECT "Event" FROM table_14419 WHERE "Opponent" = 'masato shiozawa'
SELECT "Event" FROM "table_14419" WHERE "Opponent" = 'masato shiozawa'