First off, let me say no one was hurt, and no bikes were damaged.
We had a group ride today and ended up with 13 people. The ride started off great until we got about 14 miles in and went through a light, as some were going through the light it turned yellow, so people in the middle ran the light and the 4 people at the bike stopped. The members of the group that got through slowed to wait on the rest. We were slowly pedaling as they were coming up, then they said to start going, so we started going again and picked it up to about 16-17 when I heard someone behind yell something. I slowed up some and looked back to see what was going on, and when I turned back around the guy in front of me had slowed WAY down and my wheel was right next to his and as they rubbed, down I went.
The guy behind me went up and over my rear wheel and bent the rear derailleur hanger and knocked the wheel out of being true. We did a quick fix on the wheel and got it pretty close, enough to finish the ride, and then I just couldn't shift all the way to the highest gear on the rear.
I only scraped my knee a little and got a couple of bruises on each side of my left knee. All-in-all it was an OK ride, as about 35 miles in we had a guy go to the front that couldn't keep a steady pace and bounced between 18-20 every 10-20 seconds so I finally dropped out of the pace line and went at my own pace at about 17.5 to the finish.
I will say that I still have some conditioning to do to be ready for the MS 150, but I have over a month to get there.