PR means Personal Record, to put it simply. A Pr can come in several different shapes and sizes. In powerlifting, you typically hear people say they set a pr in regards to the number of lbs or kgs they were able to move - however, there are a number of types of prs a person can hit, which is why we’re going to focus on PR’s people hit in powerlifting. 

• Volume Pr: A volume Pr is essentially a pr that states that you were able to do more repetitions with a given weight. For example, let’s say that previously you were only able to do 10 reps with 315. If after a few weeks of training you’re able to press 315 lbs for 15 reps you just hit a volume pr. 
• Weight Pr: A weight pr is pretty straightforward, it means that you’re able to lift more weight in a certain movement than you were previously able to. An example of this would be going from lifting being able to Bench Press 360 lbs for a single to being able to Bench Press 375 lbs for a single. 
• Time Pr: A time pr doesn’t really apply much for powerlifting but it’s a pr where you’re able to complete a circuit of movements (or even your workout if you’re timing it) in a shorter period. An example of this would be one where you have a part of your workout where you do 3 sets of 12 on your leg press. Before you were able to do the movement in 10 minutes but during your last workout you were able to finish your circuit in 8 minutes. 

Conclusion

A pr is basically something that says you improved, no matter how small the improvement. If you were able to Bench 135 last week but are able to Bench 150 this week you’ve improved.