Well, bao is a particular board game played in East Africa (and probably elsewhere). But because there are many "board games" in the English-speaking world, "board game" does not work very well as a translation for the Swahili word "bao." My preference would be to leave it untranslated bao if in the context of board games.
bao [noun] - an African board game usually played by moving pebbles along two rows of holes. https://www.dictionary.com/browse/bao
EDIT (3/Dec/2021): There are at least two other board games played in East Africa: dama (checkers/draughts) and sataranji (chess).
bao can mean the board on which any of these games are played.
I think bao means score in the sense of "goli", and sports announcers seem to love yelling out a prolonged "skoooooooooooo ..." when a goal is scored. Not sure what word is used for the results of a match (maybe matokeo or matokeo ya mwisho, but I don't think it is bao