umpire
noun
a person selected to rule on the plays in a game.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Soon, we were umpiring simulated games and calling plays on the basepaths.
From Slate ● Apr. 21, 2016