CREATE TABLE table_6345 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Which event is in round 1 with a record at 5-1?
SELECT "Event" FROM table_6345 WHERE "Round" = '1' AND "Record" = '5-1'
SELECT "Event" FROM "table_6345" WHERE "Record" = '5-1' AND "Round" = '1'