In fact, I'm injured and likely to be out for many months, so maybe I should volunteer to marshal something to still feel connected. Once I'm off the crutches. It might be a bit frustrating, but the comments above show it is worth doing well.
I just thought I'd update this in case anyone is still watching it.
Unfortunately things have gone seriously downhill. After the 10 mile race I continued training for the half marathon, and built my distance up to about 12 miles.
Then, 2 weeks before, I fell over when skiing and twisted my knee. Definitely MCL damage, possibly ACL and cartilage too. Waiting on the scan. But walking is tricky and running again is a long way off, maybe 6 months or more if surgery is needed.
Very frustrating. Looks like I'll be starting from scratch again this year. My target now has to be to get round a 10k aagin.
If you tell us which race it is people might be able to give specific advice.Races do differ in competitiveness and character as well as facilities etc.
You might even find a running mate or cheering squad. I was worried about being last by a mile, and posted on here. I got some great support online, but the best thing was on the day some forum members who hung around at the finish line just to check I finished ok and say hi.
Dan's advice is good. But I find the queue for the ladies toilets is always longer than the gents so you might want to consider that.
Don't forget safetly pins for your number. If it's a big race and the weather isn't great a bin bag keeps you warm and dry whilst you are waiting to start. Don't start too fast, if anything start a bit slower than normal. It's very easy to get full of enthusiasm and sprin off the start.