Surely there's some eager senior undergrad who wants to do this for a senior honors project in maybe stats, maybe kinesiology, exercise physiology, whatever!
Now we have Knighton, whose sample was found to contain the metabolites of Trenbolone. We could present his times as well, because the fact is that he was competing while having taken a banned substance, knowingly or not.
Raw, his time improved 0.92s from 2019 to 2021, then a further 0.12s in 2022...in which year he put up that epic 19.49, the 5th best 200m performer all-time, again at the tender age of only 18, for a world U20 record.
His basic time in 2021 was 10.26 (10.29 (-0.4), in the top 100 in the world.
Like Asinga, yes he was very young so he could be expected to naturally improve, but there are 2 important facts for the both of them: 1) they didn't just improve, they improved a huge amount of time, to World Junior Records; and 2) they did have metabolites of banned substances in their bodies, which is the very thing we are looking for.
This lends some more weight to the suggestion that if an athlete who has shown a 0.50s improvement over 2 years is tested, metabolites of a banned substance may be found in their system. Would a positive finding be more likely than for athletes who didn't show that improvement? I don't know, someone should do some meaningful stats.
I would suggest that one way of addressing guys like Asinga and Knighton would be to test them and test them hard, while they are under 20 and set WJR's, but then to use the results as mostly informational--that is, issue them a warning that they have something in their system, give them some time to clean it out while serving maybe a 2-month suspension from competition but not training, test again after those 2 months, erase all records, and give them a clean slate after which they will be treated in the normal adult fashion. If they are still hot after those 2 months, decide what to do on a case-by-case basis, depending on the facts.
YES I know that this wouldn't address microdosing; yes I know that this wouldn't address possible long-term benefit from using certain PED's--BUT these are still kids. I don't think there should necessarily be any greater sanction for intentional use, because kids are both experimental in their own right, and also subject to undue influence from adults. I think that the trade for an only 2 month ban should be disclosure on their part, to help identify for the record how these things happen. They might own up to it, or they might put the blame on someone else, or it may be a legit accident--but my point is that these kids should be helped along, and encouraged to do things the right way.
However, I do think that there should be an age cutoff for this sort of thing, in my mind maybe 18 yrs, maybe 20. I don't know how this would work for field or distance.
In addition to all of this, there should be a completely confidential helpline that these athletes can contact, to get information and assistance with no fear that anything will result from their disclosure unless they want that result to happen, like a SafeSport type program. It would help them understand options, it would help them understand what ramifications could result, it could help them navigate a way out of a bad situation, etc.
These are, of course, preliminary ideas, not yet really formed--but with all the resources that go into things, it strikes me that the population that needs help the most, is possibly the most under-served.