I’m amazed how much kit I’ve just packed for the Athens Classic Marathon. Race belt, painkillers, Vaseline, plasters, Imodium, energy gels and other food, a sun hat, a few tops and shorts (to be chosen on the day). Compression socks for the flight itself. GPS watch. It’ll be nice to wake up on Sunday morning and just wear the kit I need and no more.
The flight’s in 3.5 hours so I’d best make my way to the airport. Next stop, Athens!
Keep exploring
-GeekintheHills
Geek in the Hills 
It looks that you will need only the minimum of running kit, hat and sunscreen! ENJOY!