Experienced calf pain after a 50 minute run 10 days ago. So took an extra day off and did a lot of work with a foam roller and other exercises to ease the stiffness and pain. Then did a short 20 minute run and the right calf (the only one affected) hurt like hell, so I stopped and walked home slowly. Then rested for a week until 8am today. Had a slow 20 min run and it was fine. However, after stretches, warm down, shower etc, calf feels stiff but not too painful.
Will have the weekend off and do another 20 min gentle run on Monday and see how it goes.