Have you tried putting a washcloth in some water with Epsom salt, and letting it sit on your ankle for about 20-30 minutes? You could also try a hot/cold therapy for a few minutes to try and get the muscle to relax.
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I finished in 32:40, not what I was hoping for. I hadn't ran this course before and the hills kicked my @ss!
Now I will focus on some yoga for this week and see how the ankle feels if I set out to complete a 10k in 6 weeks or scrap it.