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slang.fyi

PB

/piː biː/

Common

Personal best: your fastest time or best performance on something, compared only against yourself.

A PB is a win even if the time is far from the world record. The point is improvement over your own past performance.

Real-world examples4 examples
#ExampleWhat it meansSource
01PB by 47 seconds!!!!! i'm actually cryingThe person beat their previous best time by 47 seconds, a big improvement causing an emotional reaction.x, 2024
02run started rough but finished clean. pb by 3 secondsDespite a bad start, the run ended better than any previous attempt by 3 seconds.twitch, 2023
03finally hit sub 30 on the first level. that's been my goal for like a monthThe person reached a specific time target they had been working toward.reddit
04ran 5k in 24 mins today. new pb. the gym arc is realThe person beat their personal best running time outside of gaming.x, 2024

Use it when

  • Someone beats their own previous best time on a game or level.
  • Someone achieves a personal milestone in any activity.
  • Celebrating self-improvement regardless of where it places against others.

Do not use it when

  • You mean the global fastest time, which is held by any person in the world.Use “world record” instead.

Variations and related forms

personal best

The full phrase for PB.

PB vs world record

PB

PB is the best time a specific individual has ever achieved.

VS

world-record

World record is the best time anyone in the world has ever achieved.

Origin and context

The abbreviation PB comes from athletics where personal best describes an individual's best performance in a given event. Speedrunning communities adopted it to describe an individual runner's fastest time.

First seen
pre-internet
Confidence
high

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Use this stable URL to reference the entry.

https://slang.fyi/pb
Updated: 2026-08-28License: CC BY 4.0

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