I honestly still don't understand how Peter has never been in the top 50, unreal!
For one, his results off clay have been average at best throughout his career. Secondly, he doesn't do anything well enough outside of his forehand. But, with that said, he's improved his game quite a bit now that he is healthy. He's not really a top 50 guy consistently, he can maybe reach a career high of 40, and be a 40-80 player, but that's about it.