I knew the course was short! I've measured it several times using online tools and reckoned it was 9.575 kms at best. That said, it's not a flat run, the total rise being 36 metres. I also think the hill climb once you've run across the large field is rather gruelling. I'd also prefer a run that started and finished at the same point.
How was the course altered this year to make it 10k?
For the last two years injury has prevented me taking part in my first race! Next year ... my target being an hour!