Having aggravated my old thigh injury somehow on holiday last week (too much walking?!), this was really a test run to see how it felt. All good for the first 3k, didn't feel like it was a fast pace and I felt like it was a fairly steady run. Stopped at just over 20 mins rather than risking overdoing it and walked a bit before setting off. Then felt it start to tighten very quickly just after 5k and had to stop running and walk again. Didn't risk another run, don't think I would have managed it anyway. Long walk back home, ice pack on and no more running til at least Monday methinks!