Not a book written for an audience, but instead a personal record.

不是一本写给人看的书，二十一部私人日记。

youdao

This is not the time to be trying to beat your personal record or run your longest distance ever.

孕期不是你打破个人记录，跑此生最长距离的时候。

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If your goal is to complete a half-marathon, first try to run a 10K or shoot for a personal record in the 5K.

比如，若你的目标是完成马拉松的一半距离，那么首先试试跑10000米或冲击5000米的个人纪录。

youdao

As you read above, the personal record on Google is only up for a limited time.

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The watch even lets runners know when they achieve a personal record, like a fastest mile or longest run to date.

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He wanted the date on his personal record adjusted, to let him serve a few months beyond his scheduled retirement in May.

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