Question about long runs....

 I have my first 1/2 scheduled in September.  My last long run was 9 miles this past Saturday.  I have a 10 mile long run in 2 weeks.  I am planning on running a 5K that morning with my son.  It is the Elvis Presley 5K that is planned during Elvis Week, in Memphis.  It is going to be a ball....the are lots of running Elvi  (Yes, that is the correct southern plural of Elvis)  So anyway,  should I reschedule my long run for another day or run an additional 7 miles that evening?  I usually schedule my rest days before and after my long runs, but if I feel ok, could I do my long run the next day?    I have no time goal for this race.  Its my first one, so my only goal is to arrive uninjured and finish uninjured.  I havent had any physical problems so far.  Any thoughts???

Kat

In the past I ran 3 miles before a half marathon on a day that I was supposed to do 16 miles. Worked out well for me to do it before but your cir****tances are different with a 5k on a 9 mile day. I still might try to get it in before.

I have seen a  few articles recently about breaking up the long run days.

Where the athletes are doing a  couple runs during the day instead of one long run.

http://www.active.com/running/Articles/Should-You-Split-Your-Long-Run.htm

So what I'm getting at is count your 5k run as part of your long run day.