In my review of the Columbus Marathon, I glossed over the confusing starting line. Part of the reason I did that is that I thought most of the problem was our fault. I just assumed my friends and I didn't look around well enough.
We do a lot of races and just assume if you go to the back of the line, eventually you will find the end. The end is where we usually line up.
In this case, we approached the starting line from the back, so just assumed we were in the correct spot. We never checked to see where we should be. We ended up behind the 5K racers along with a huge number of half marathoners.
As it was, when we finally made it around the 5K people, there were tons of runners still behind us and we inadvertently were in the way.
So, despite everything else great about this race, the starting line needs work. Thanks for the input from other half marathoners!