Baseball statistics are kept track of by the scorekeeper and other personnel. The official scorekeeper is responsible for recording the details of each play that takes place in a game, including who was involved, what the result was, and any other relevant information. This information is then used to compile various statistics such as batting averages, earned run averages, and fielding percentages. Other personnel, such as the official scorer, are responsible for the official record of the game and may also make rulings on plays that the official scorekeeper did not record. These personnel are an integral part of any baseball game and help to ensure accurate records and statistics.