An athlete's best recorded performance in a particular event, representing their lifetime achievement in that discipline. It serves as a benchmark for measuring improvement and competitive standing.
From 'personal' (individual, private) and 'best' (highest quality or achievement). The term became standard in competitive athletics as record-keeping became more systematic in the early 1900s, allowing athletes to track their individual progress over time.
Personal bests are often more meaningful to athletes than winning races—you can lose a race but still achieve a PB, making it a victory against your former self! Many coaches structure entire seasons around helping athletes achieve personal bests at key competitions, since PRs often lead to qualifying for higher-level meets.
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