I uploaded my marathon data from Garmin into SportTracks software, there is plenty of interesting statistics available there.
Here are my 1km time splits for Jungfrau Marathon, 2009.
... Anything that is put down wrong here is, as far as I'm concerned, wrong for good ... "The Hitch Hiker's Guide to the Galaxy" Douglas Adams
The plan was to have a relaxed run with some noticable elevation gain, but I've changed a route a bit to visit a nice looking trail I have not tried. It was well worth the trouble: a couple of doe was crossing the trail, probably going to the creek close by and I had pleasure to watch them disappearing into the forest. I've slowed down (as if I were fast before :-)...) and studied the place they disappeared at...
Just a few minutes after, I was surprised by a different couple: this time they were short-toed eagles! they were really close to me, not more than 5 meters and I had a chance to have a good look at them... I saw more of their kind later and also the reason they were out: hunting snakes. The snake I met (well, it just crossed the train and I jumped over it, even without saying hello) was not a small one and luckily it was not interested in me.

