That was the big theoretical debate on the weekly LetsRun call. Somehow Centro's name came up and Robert said, "He didn't run 5th Avenue." I made some remark if he showed up without training Jenny Simpson have beat him. Everyone else pointed out that was idiotic with only a month off for Centro and I agreed.
Then we debated how long Centro could go with no training and step on a track and beat Jenny. It probably is an issue of how quickly he puts on weight. One guy said a year. With no training could the Olympic champ run a 4:20 mile in a year? No way in my book but it depends on how active he was.