Keeping warm when wet.

[StillNoFuckingEyeDeer]

I did the Rock Solid Race at the weekend. It was great, but f**king freezing. It was 7C, which is probably considered balmy if you're from the north, but not in Devon. The race involves lots of mud and getting very wet. There's a skip full of ice cubes to wade through and get submerged in and a slide down into a deep (cold) lake etc. Basically, your clothes are wet for the full 10K.
I was wearing running leggings and top which are usually quick drying, but because I was getting constantly wet, they just kept me cold.
Anyone know what's the best thing to wear to do something like this? A triathlon suit maybe? I fancy giving it a go again, but without the hypothermia.

Anyone?

I live in the US, and we've had a horrible winter. I've run at -10 or colder a few times and whilst I've had frost on my hat and scraped ice off my sunglasses, it's broadly been ok because I've been dry.

A couple of weeks ago I ran a half when it was just above freezing, but it had been tipping down all night, all the way through the race and after. That felt far far colder.

I can do cold, and I can do wet, but the combination is pretty bad, especially with something like an obstacle race where you're getting repeatedly wet rather than gradually soaking through.

I would imagine, other than saying next time wait for summer, shorter trousers (just below the knee perhaps) and good wicking socks, plus two wicking top layers would be your best bet as you wore. I think the key is preparation for before and after. Start warm, even if that means abandoning a hoodie as the start goes off. Have hot porridge or something similar for breakfast, and be prepared with warm dry clothes to change into at the end.

While you're running, as long as your core is warm you should be ok. Perhaps also consider a hat and gloves?