I've seen countless posts about "scratch" golfers and what people think that means, but this article clearly illustrates just how hard it is to break par and shoot some of the numbers these guys on PGA, KFT and other tours routinely do. Hopefully this help with some understanding of what it means to be "scratch"
https://newsletter.loustagnergolf.com/p/how-often-do-scratch-players-shoot-under-par?
https://newsletter.loustagnergolf.com/p/how-often-do-scratch-players-shoot-under-par?