Table: mark_calcavecchia_tournaments
Columns: date
tournament
winning_score
margin_of_victory
runner_s_up

Question: What tournament had a Winning score of –9 (69-72-68-70=279)?
SQL: SELECT "tournament" FROM mark_calcavecchia_tournaments WHERE "winning_score" = '–9 (69-72-68-70=279)'

Question: What was the winning score of the Greater Vancouver Open tournament?
SQL: SELECT "winning_score" FROM mark_calcavecchia_tournaments WHERE "tournament" = 'greater vancouver open'

Question: Which runner(s)-up had a Winning score of –13 (68-70-66-71=275) and a Margin of victory of 3 strokes?
SQL: SELECT "runner_s_up" FROM mark_calcavecchia_tournaments WHERE "margin_of_victory" = '3 strokes' AND "winning_score" = '–13 (68-70-66-71=275)'

Question: What was the Margin of victory in the southwest golf classic Tournament?
SQL: SELECT "margin_of_victory" FROM mark_calcavecchia_tournaments WHERE "tournament" = 'southwest golf classic'

Question: When the Winning score was –9 (69-72-68-70=279), what was the Margin of victory?
SQL: SELECT "margin_of_victory" FROM mark_calcavecchia_tournaments WHERE "winning_score" = '–9 (69-72-68-70=279)'