Table: hunter_mahan_tournaments
Columns: date
tournament
winning_score
margin_of_victory
runner_up

Question: what is the tournament when the winning score is 2 and 1?
SQL: SELECT "tournament" FROM hunter_mahan_tournaments WHERE "winning_score" = '2 and 1'

Question: what is the margin of victory for the tournament travelers championship?
SQL: SELECT "margin_of_victory" FROM hunter_mahan_tournaments WHERE "tournament" = 'travelers championship'

Question: what is the margin of victory for the waste management phoenix open tournament?
SQL: SELECT "margin_of_victory" FROM hunter_mahan_tournaments WHERE "tournament" = 'waste management phoenix open'

Question: who is the runner-up when the winning score is −16 (68-70-65-65=268)?
SQL: SELECT "runner_up" FROM hunter_mahan_tournaments WHERE "winning_score" = '−16 (68-70-65-65=268)'