การเดินขบวนของคู่ต่อสู้คนใดคือ 31?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Which opponent's march was 31?It is not neccessary to use all the tables.
 table_78372:  "Game" [ real]  "March" [ real]  "Opponent" [ text]  "Score" [ text]  "Decision" [ text]  "Record" [ text] 
SELECT "Opponent" FROM table_78372 WHERE "March" = '31'