Baseball? I think I threw one in the mid-50s once at Six Flags. I'm obviously not a baseball player, huh?
Now tennis... At one point, I had a serve that consistently hovered around 100 mph (and they went in, thank you). Also, I once had one of my backhands clocked in the mid-90s. It was particularly humorous because, at that time, I couldn't serve anything harder than low-80s.