Certainly makes the already somewhat suspect Tokyo silver for
Kalkidan Gezahegne even more suspect in context.
She was a good junior 1500m runner back representing Ethiopia, then switched to Bahrain in 2013. She runs three races in 2013 and only one in 2014, although she DNSes both races on the Diamond League she does and her most significant result is a 4th in the Golden Spike at Ostrava, a Continental Tour Gold event. She then has zero IAAF-sanctioned results until 2017, when she runs the 5000m at Prefontaine and the World Championships, scoring 14th in the final. She wins the Asian Games 1500m and 5000m in 2018 and is 2nd in the West Asian Games in both, behind two fellow Ethiopian-born Bahraini athletes.
And then she disappears off the grid and doesn't run anywhere at all for two straight years (2020 of course being somewhat explicable with Covid pandemic restrictions, but nevertheless, it's not the first time for her), then returns in 2021, coming 2nd in two Continental Tour 10000m races, a discipline she'd never competed in before (at least not on track), one in Maia, Portugal (a Challenger event, the fourth tier of Continental competition) and one in Montreuil (a Continental Tour bronze event, the third tier), before staying with Letesenbet Gidey as she upped the pace time and again, dropping everybody bar Gezahegne and eventual winner Sifan Hassan, ending up some 30 seconds ahead of Hellen Obiri in 4th (who set her PB at the time then as well) and taking home a shiny new silver medal while the commentators questioned who she was and where she had come from since she'd never even done any college racing, any US racing, any Diamond Leagues or any racing against competitors even remotely close to this level before, and she was 30 years old so hardly a brand new revelation either.
And since then? She did two more 10ks, but these being road races, breaking the world record for the road 10k at the Geneva meet. And she
hasn't run competitively since.