Britannica Sources used in this answer

How many frames are played in a standard game of tenpin bowling?

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A standard game of tenpin bowling consists of 10 frames.1

In each frame, a player is allowed up to two deliveries to knock down all 10 pins. If a player knocks down all pins on the first delivery, it is recorded as a strike; if they clear the remaining pins on the second delivery, it is recorded as a spare. While the game is played over 10 frames, additional deliveries may be permitted in the final frame if a player bowls a strike or a spare, allowing for a maximum score of 300.1