[jabv]

So, strstd.com has been around for a while. The standards themselves seem to be the same, and I generally assume that those come from http://www.exrx.net/Testing/WeightLifting/StrengthStandards...., although I guess that may not be the case.

[mjac]

Yes, you are exactly right about the original source data. However, Strength Level has been around since 2007 and we use 500k+ user lifts to refine the estimations.

[andreabedini]

Wouldn't that give you big selection bias?

[mjac]

Yes, so we have to say you are better than 75% of other users instead of 75% of humans. Do you have any advice in this area?