The middle race was an ok race and I didn't make too many mistakes, mainly hesitations, but I lost a lot of time from not attacking the course and as expected my shape was not what was required and I ended up in 78th place, well down. However, it was a great experience and good to see where I am and where I need to be.
After the middle race, I felt some soreness in my hip and I retired from the long race after just 15 minutes which was a disappointing decision but there is no sense to damage it any more.
So from my senior début I have a 78th place and a DSQ. Onwards and upwards from here.