@KatoShuu
This is the kanji version of the Tsuyoshi used for this chapter:
剛志
As you can see on Wikipedia: https://en.wikipedia.org/wiki/Tsuyoshi
It means sturdy, will
Andou Sora. The person that Tsuyoshi saw is Andou Yuu, Sora's Kid. The commentator only said "Andou"; so I think there is a possibility that the scorer was Andou Yuu