I am not a fast biker. Mostly because I am busy looking around at my environment to take pictures, so I am not concentrating on pace. In the end I get passed regularly. Right now it appears to be by groups of bikers in club uniforms, so I just shrug it off.
I always try to have my GoPro cameras running. Yesterday, I got passed by an an old lady which one of my GoPros decided to film. Usually fog or dirt or battery prevents any good shots.
I added the jet sound, but you can hear in the background comments made by a a person in a biking group (they were just getting ready to start). that I was passing as the old lady passed me.