A serious marathon challenger?
https://www.nytimes.com/2020/02/11/magazine/ultrarunning-marathon-olympics.html
LRC Note: This thread was started with a titile of "Decent Walmsley article"
The SI article is here:
https://www.si.com/olympics/2020/02/11/jim-walmsley-us-olympic-marathon-trials-training-ultrarunning
RW here :
https://www.runnersworld.com/runners-stories/a30858395/jim-walmsley-olympic-marathon-trials/