51F / 10C this morning. Sunny. Tailwind. Was a nice ride. Someone on a hybrid turned around behind me and followed me for a very short while. Once I got up to normal cruise, he fell further and further back until he was gone. Then I caught a rather fit-looking woman on a very squeaky road bike. I was following her trying to figure out what was making the noise. It wasn't related to her cadence. I gave up and passed her. I swear she pedaled harder when she heard my bell. She almost caught me at a red light but it turned green and I went all Lance and dropped her on the hill before my office.