Walking around without strapping the leg, although it still aches and has restricted movement. So running in CO this weekend not likely :)
On the good news front have entered the Wisconsin Senior Olympics, a NSG qualifier, Milwauke Sept 6th- NO sprints!!
Walking 18:00  1.6 km (11:15 / km)
Everything tight and grumpy today. All told covered 7km and achieved steps target for the first time since Friday
Strength warm up/down 45:00 
Abs, core and upper, then some diagnostics. Could not do SL bridges on left side, but isolated ham curls were OK. That and location of discomfort suggests glut minimus or piriformis spasm/ tear.
Interesting and made me recall the thoughts that went through my mind at the time of injury- this does not feel like a regular ham tear- golf ball like cramp in mid outer buttock, but deep in, and I even said to the attending physio when I couldn't stand up - this might be a piriformis issue. Story continues.......
Massage (Physio) 1:00:00 
So physio checks a few things and concludes a glut minimus strain. Unusual injury but likely from over striding with an inward rotating thigh ie poor form!!
Anyhow she worked some magic loosening tight quads and hams and put her finger on the spot. Ice and heat helped as well followed by application of KT. Marked improvement since am.