I ran a half marathon today as part of my training plan. The race was well organised, the route was lovely and the weather was perfect - slightly sunny but not too hot. I was very pleased with how I ran the first 11 miles - unfortunately my calf started tightening in mile 12 and was very sore by the end, which slowed me down a bit. I'm not sure if I ran too hard earlier on, or if it would have happened regardless as it's been playing up a lot this week. Luckily I have a massage sorted for later in the week which I hope will help - I'm just a bit concerned that I may need to miss some training to help it recover.