Question: Which method was used in the Welterweight class with a Preliminary card?
SQL: SELECT "Method" FROM "2-16023995-1" WHERE "Weight Class" = 'Welterweight' AND "Card" = 'Preliminary';

Question: Which method was used in a round greater than 3?
SQL: SELECT "Method" FROM "2-16023995-1" WHERE "Round" > 3.0;

Question: Which weight class had a time of 4:59?
SQL: SELECT "Weight Class" FROM "2-16023995-1" WHERE "Time" = '4:59';

Question: What was the time for a round less than 3?
SQL: SELECT "Time" FROM "2-16023995-1" WHERE "Round" < 3.0;

Question: What is the smallest round for the Welterweight class with a Preliminary card?
SQL: SELECT MIN("Round") FROM "2-16023995-1" WHERE "Weight Class" = 'Welterweight' AND "Card" = 'Preliminary';