A personal best, often abbreviated as PB, refers to the best performance an athlete has ever achieved in a particular event or activity. It is the highest level of success a person has reached, whether in terms of time, distance, or score, depending on the sport. Personal bests are often used as a measure of progress, showing how much an athlete has improved over time. Athletes strive to break their personal bests, aiming to perform better than their previous best effort in each competition.

英語での「personal best」の定義と意味

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