Nice long sprint in Southwick military base, Portsmouth. Some fairly runnable forest to start with, but mostly urban building and grass. Felt good and fairly intense opportunity to practice sprint-O. Made one significant directional mistake going to no. 13, losing 30 seconds. Misread the buildings that I thought looked similar.
First time to use Quickroute. It was very helpful to see my mistakes and where I lost time. For example, between 15 and 16 I slowed down mid-leg from 14km/h to 6km/h for 30m. I calculate this means I lost around 20 secs! Makes me think more about the impact of hesitations in sprint races.