1. 野球　   boxing   baseball   horse-riding   water polo   Hint Half-n-half Clue   2. 格闘　   boxing   ping-pong, table tennis   water polo   wrestling   Half-n-half Clue   3. 騎馬　   horse-riding   billiards   ping-pong, table tennis   water polo   Half-n-half Clue   4. 水泳　   baseball   wrestling   swimming   gymnastics   Half-n-half Clue   5. 玉突き　   billiards   gymnastics   swimming   baseball   Half-n-half Clue   6. 拳闘　   billiards   ping-pong, table tennis   baseball   boxing   Half-n-half Clue   7. 卓球　   water polo   ping-pong, table tennis   baseball   horse-riding   Half-n-half Clue