I was expecting the course to be fast, flat and fairly simple. The course made quite good use of the available terrain, but you still had to be very fast, and I wasn't quite up to the speed required for a top result here.
I made a small error exiting 3 and found myself on the wrong side of an uncrossable fence. I should have kept going, but stopped and went back around losing perhaps 10 seconds.
When I exited 15 I got stuck in some green bushes. I then panicked a bit and didn't find the best crossing point of the marshes, losing another 10 seconds.
The school section went well until the 3rd last when I failed to recognise that the control was on the south side of the fence, so I lost another 10 seconds.
So, altogether I was a bit messy when I needed a clean run to compete with the top runners.