Got to agree with Mr. Stone. Baby joggers have no place at a road race. The excuse that no one can watch the kid and it's the only way to race doesn't fly. Is running while pushing a stroller really count as racing? Do you have two PRs, open 5K and stroller 5K.
I don't mind generalizing, but pushing your kid in a stroller in a road race is one of the biggest cries for attention I ever get to witness. The other two are wearing ankle length black socks with your brightly colored Nikes, and bringing your dog with his cute bandana and race number, who you so cutely registered as "Fido Jones" so you could argue with the race director that Fido is registered.
Face it. You simply want the attention. If you weren't in it for the attention, you would just get up in the morning, throw the kid in a stroller or put Fido on the leash, and venture out your front door for a little bonding with the kid/dog, letting him/her/it participate in your grown-up/human activities.
Don't get on here and try and justify running in a race with a stroller. It is a RACE. If you want to race other people pushing strollers, then find a stroller race. For those of us who pay to run in a ROAD RACE, we should not have to avoid obstacles such as strollers and dogs, especially at the start, where there is more chance of an accident.