FKT: Meghan Purdy - South Bay Dumbarton Loop (CA) - 2021-04-04

Gender category
Route variation
Standard route
Start date
Finish date
Total time
5h 33m 5s
GPS track(s)

After scouting the water fountain and bathroom situation in the few weeks before this, I realized that the only guaranteed, publicly available water was at the Don Edwards preserve on the east side of the Dumbarton (thanks to Covid, a couple of fountains in Sunnyvale in particular had been shut down). Wanting to do this unsupported, I started at Shoreline Park in Mountain View (specifically, the entrance at the end of San Antonio Rd) and run CCW, which put me at the fountain at 26 miles.

I had a 1.6L bladder in my hydration vest, plus 2 clif bars, 2 gels, some chews, and goldfish crackers. I certainly felt a bit of a pinch on water supplies both from mile 20-26 and the last couple miles, especially with the sun coming out around 11am when I was on the bridge, but I didn't succumb to buying anything at a gas station or similar. My mom called me and kept me distracted for a couple miles on the bridge, but I had no in-person support.

Thanks to Nicole Mackey, whose run in January revealed that the route needs to change slightly (adding ~100 yards) now that the Bay Trail has been routed around the Sunnyvale Water Pollution Control Plant. I followed her route exactly.