As a marker in a Singles game, when should you inform players of the score?

When serving as a marker in a Singles game, your role includes keeping the players informed about the score, particularly when no scoreboard is being employed. Informing the players after every end serves the dual purpose of maintaining clarity and ensuring both competitors are aware of the current state of play. This consistent communication helps prevent any confusion or disputes regarding the score that may arise during the game.

In the context of the other choices, while it may seem reasonable to provide the score only when asked or at the end of the game, this approach could lead to misunderstandings, particularly in a fast-paced or competitive match. Providing the score after every end promotes transparency and allows players to focus on their performance without the distraction of uncertainty about the current score.