ชัยชนะด้วยคะแนน 71-69-71-70=281 เป็นเท่าใด
What was the margin of victory for the win with a score of 71-69-71-70=281?
df = pd.DataFrame(columns=['margin_of_victory', 'winning_score'])
df.loc[df['winning_score'] == 281, 'margin_of_victory']