Nice going! When I read that there was snow over there, I thought you'd take a pass on the event. You'd double-twisted your ankle a couple days before! Did it get twisted again? Any pain? Wear a brace?
It was above my ankle, I think pulled the muscle that would have sharp pain if My ankle twisted wrong. I debated going but in the am I decided to go. Yes I wore support for the area. At the last control I slipped and hurt, I said I was done. Only 15 minutes left in the event at that point.
Bummer. I sprained my ankle out in Colorado one year. And kept re-spraining it. So as a consequence, it took YEARS to stop being painful. Wore an Active Ankle and everything. No help. Orlyn used to tape his ankles. And as far as I know, never had a problem despite running through the woods and down stony hills at break-neck speeds.
Did similar in Feb, 1980 jogging on a gravel-stone road (needed a ride to the ED I'd just left working). Took to taping & developed a "pump bump" over time - extremely sore R posterior heel (the name from women's high heels causing same, esp in winter - also "winter heel".
I remember a branch jumping up at an O meet (prob spring '81), hitting it directly, couldn't run for a week. Didn't use the ankle much between '84-91 (no O) but it resumed when I came back to O. Had a hole cut in right shoe over same as pressure = limp. From reluctant orthopedic surgeons, I was treated with a removable boot, plaster cast (some 8 wks!) & finally found a surgeon willing to take it on @ NE Baptist Hospital in Boston ('94). Wore an active ankle (most helpful) for years. Chronic pain wasn't the issue for me - just re-sprain. It has faded to background but also I am not so hard on feet/ankles anymore.
There is pretty characteristic swelling pattern with an ankle sprain.