Table: golf_results_10
Columns: date
tournament
winning_score
margin_of_victory
runner_s_up

Question: What is the margin of victory for the winning score of −10 (71-65-68-70=274)?
SQL: SELECT "margin_of_victory" FROM golf_results_10 WHERE "winning_score" = '−10 (71-65-68-70=274)'

Question: Who is the runner(s)-up for a winning score of −3 (71-74-66-66=277)?
SQL: SELECT "runner_s_up" FROM golf_results_10 WHERE "winning_score" = '−3 (71-74-66-66=277)'