I'm an average runner graduated from college who runs 50-60mi per week still (16:02 5k, 9:05 3k). My average power on most runs is around 210-240W and I weight 56.6kg which is 125lbs and I'm 5'6". This nets out to 3.7-4.2W/kg. I looked at some professional athletes' average power on runs from strava as a sample (although you can only take so much info from there).
Case 1 Drew Hunter: He averages roughly 260-300W per run. I assume hes roughly 145lbs which is 65.7kg. This nets out to 3.96-4.6W/kg.
Case 2: Clayton Young: He average roughly 250-300W per run as well. Assuming he is 135lbs, that is 61.1kg which nets out to 4.1-4.9W/kg.
Case 3: Neilson Powless: His average power on a hilly bike route is roughly 250W. He weights around 130lbs which is 58.8kg. This nets out to 4.25W/kg which is on par with elite runners.
Case 4: Graham Blanks: His average power on most runs is 380W. This is very high and likely due to watch difference. His runs do show he pretty much never has an easy day like you see Mantz or Hunter or Young have. I put his weight at around 140lbs which is 63.4kg. This outputs a whopping 6W/kg which is sustainable for some distances but leads to injury as its quite equivalent to going hard daily with limited recovery.
Woman were difficult to find on strava for good reason so not much data there. I saw emma bates on there and her data more or less correlates with my average as shes roughly 120lbs and her average power on strava was 180-200W. For the sake of calcs this nets out to 3.3-3.7W/kg. Although I'm fairly certain she would kick my butt in any of the aforementioned distances.
Anyways if you want to do your own calcs if you got a watch that does power.
Weight (lbs) / 2.208 which converts to Kg. Then average power (W) /weight (kg). Would be interesting to see what others get.