CREATE TABLE table_49146 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

What was the lowest round number at the UFC 16 event with a record of 19-1-1?
SELECT MIN("Round") FROM table_49146 WHERE "Event" = 'ufc 16' AND "Record" = '19-1-1'
SELECT MIN("Round") FROM "table_49146" WHERE "Event" = 'ufc 16' AND "Record" = '19-1-1'