Table: fighter_record_20
Columns: res
record
opponent
method
event
round
location

Question: What event had a tko (punches) method and jason macdonald as the opponent?
SQL: SELECT "event" FROM fighter_record_20 WHERE "method" = 'tko (punches)' AND "opponent" = 'jason macdonald'

Question: What is the opponent after round number 1 with a method of decision (unanimous)?
SQL: SELECT "opponent" FROM fighter_record_20 WHERE "round" > 1 AND "method" = 'decision (unanimous)'