10miles. 11:32 avg. Fastest mile 10:09, slowest mile 14:35. Started at the East Kaysville wilderness park, I think the Wasatch 100 starts somewhere around here, and headed North along the Bonneville Shoreline Trail. Ran out 5 miles and came back with a 2:17 negative split. Awesome run! Partly cloudy skies, 85 degrees, but a pretty strong South wind kept me feeling cool. I remember running this last Summer and being all excited about it then, though I ran it a bit slower last time. Garmin shows 2500 of elevation change over the course. There were a lot of climbs. I started off just ahead of 3 mountain bikers and we leap frogged most of the way out as they passed me on the flats and downhills, then I would pass them on the uphills. I was about a quarter mile ahead of them when I turned around to head back. They must have gone out about the same distance as me because after I had come back about a half mile they passed me for the last time. I saw them when I finished, they were loaded up and just pulling out of the parking lot. What a beautiful run. The BST is mostly single track and runs along the hillside parallel to the mountains on the East side of the valley, running north and south. It dips into the various canyons, where the vegetation and trees grow thicker, providing shade and technical challenge and then climbs back out providing big views of the valley and across to the Great Salt Lake and Antelope Island. Lots of wildflowers in bloom right now. At one point I was acutely aware of how fortunate I am to be healthy enough to see this place as only a runner gets to see it. The highest elevation was just under 5900 feet. About 3.7 miles into the run there is a big parking lot/bathroom/water fountain. Well placed. I passed it on the way out but stopped to refill my water bottle on the way back with 3.7 miles left to run. I felt good most of the way out. Coming back I started to notice how leaden my legs were whenever I hit a hill or even flat section. At around 8.5 miles I walked for the first time up a steep section of trail. Most of the other climbs were of the "I could probably walk this faster than I'm "running" it" variety. From what I understand, it's common for ultra runners to walk the hills in a race. Still after today's paltry 10 miles, I really wonder at folks ability to run 10 times that in a 100 mile mountain race, and how I'll ever get my body to do it.