Sunday long run - 21k @ 5.05 pace

Yesterday running with Nick at 6.00 am it was still cool and we had well and truly finished before the day turned hot and nasty. Today the weather forecast was the same with temps in the mid thirties but I didn't start until 8.00am. Got a cramp at about the 15k mark in my rhs hamstring - never had that before, soldiered on for another 30 mins but pulled the plug at 21k and walked the last 10 minutes home. Tonight the hamstring feels better but it was sore during the day.
Total 87k for the week.