Probably about 70 ml/kg/min.
I just looked at my example, which is purely hypothetical, and the example of 8:00 per mile being 55% of max VO2 fits in with a runner who can a 5k in about 15:00. Don't sweat the details. The points about intensity or mileage increases being necessary if minimum threshold is not being reached was the focus of the discussion. Tinman