SCR had 11.3 100m talent at her peak. At 0.55-0.60 improvement on that natural talent, she surpassed the 0.50-over-2-years signature improvement.
In raw terms, she went from 11.53 to 10.75–an insane 0.78 improvement IN ONE YEAR. By 3-year averages pre- and post-miracle, she went from 11.38 to 10.81, an insane 0.57 improvement IN 3-YEAR AVERAGES.
THAT is the smoking gun. She was 11.3 at her peak—very impressive—and may have been on the wane already in 2018. In a clean world she would be naturally competitive.
The problem is that women’s sprints are still in the era of the men’s Big-5, and are peaking with practical WR’s from ETH. SCR is to ETH and SAFP as Gay was to Bolt and Powell. We “expect” at least 10.7 from the best, and are not shocked at anything sub-10.8. In such an era, somebody with SCR’s natural talent has no shot, same as Gay and many other 10.2/10.3 natural talents had no shot back in the day.
Since SCR now seems to be under a microscope, she’s done.