do you see how his legs are uneven, and his right heel is raised? that tells me that he probably swung the bar, meaning it was a cheat curl. Normally a strict curl makes you put more weight on your heels as you are trying to keep a straight back and keep your elbows from flailing - but when you swing the bar, you're likely to be pulled forward with it. so I'm guessing he can't really curl 65.