"The form three student at the Kapsait Athletics Secondary School on the West Pokot-Elgeyo Marakwet border said he had reserved his energy for the final kick."
Form three in secondary school is what we call a junior in high school. I take it that he is about to become a form 4 student, as school below form 4 goes until roughly the end of July. I had a Form 4 student in a neighboring country who had been three years ahead of one of our young teachers in primary school. A lot of students have to drop out because their parents can't afford school fees and need them to work on the farm. Sometimes they fail the exams at the end of primary school or don't get into a proper secondary school (there is distance education, where the students get pamphlets and study more on their own in huge classrooms without desks--up to 200 in a class, and there is proper secondary school, with classes more like 45 per, and the students have books and college educated teachers) or fail the exams at the end of form 2 in secondary school a few times, and that is how my colleague went past him, finished secondary school, got a college degree and came back to teach him. So, you can be a form 3 or form 4 student even pushing 30 like my student.
Zakayo is very good. I think that we all said as much after that "U-20" 5000m finish. To even have been competitive in the last lap showed that Ingebrigtsen was really, really good--which we saw with his 3:31 at Monaco. Zakayo certainly proved he is senior-level with this race but it was already clear at under -20s, and there is no way he is under 20. However, he won't be taking medals from real under 20 athletes any more, so there's just the matter of whether he is clean (who knows?).
There sure have been a lot of major busts of Kenyan athletes recently even with their porous, corrupt testing system. Lucy Kabuu was a 2:19:34 marathoner. Asbel Kiprop a 3:26 1500m man. Ruth Jebet (Bahraini in name only, but the Bahraini transfers seem funded to cheat), former WR holder in the steeple at 8:52, which was outrageous at the time, a six second drop, and of course the 2:18:57 marathoner Rita Jeptoo, as well as Olympic champ Jemima Sumgong, a 2:20:41 marathoner.