official scorer
US /əˌfɪʃ.əl ˈskɔː.rər/
UK /əˌfɪʃ.əl ˈskɔː.rər/

1.
scorer ufficiale, arbitro di campo
In baseball, a person appointed to record the details of a game, including hits, errors, and other statistics, and to make decisions on plays that are not clearly defined by the rules.
:
•
The official scorer ruled the play a single, not an error.
Lo scorer ufficiale ha giudicato la giocata un singolo, non un errore.
•
Fans often debate the decisions made by the official scorer.
I tifosi spesso discutono le decisioni prese dallo scorer ufficiale.