If it is still bothering you now, I would wonder if there is a possible muscle tear. Have you noticed any swelling or painful areas to the touch on the calf ankle or foot?
A lot of pressure is put through the muscles of the calf with a wall run, especially since when your weight is put into the foot, the ankle is usually full dorsiflexed (toes up), placing further stretch on the muscles. This is advantageous because a quick stretch applied to a muscle allows for a more forceful contraction (idea of training with plyometrics for strengthening), but it also places the muscle at an increased risk of injury. I would have it checked out by a good PT or chiro to rule out any muscle tears.