Hamstring(semitendinosis)-that was the serious one. Did it during a sprint, racing a friend. Also re-tore it during the healing process in another area, likely in the biceps femoris.
Soleus, 2x, once during jump rope, once don't have any idea how I did it. These last three minor ones were totally and completely painless when it happened-it wasn't until several days later when they bruised up that I noticed it. My calf tears easily because it only has partial function from a back injury I incurred many years ago. The ham tore for a similar reason but more due to overwork.