Prins did overtrain and way overrace him. 32x400 in 65 for 22 miles on the day! Insane. Prins was a 3:10 marathoner so he didn't know what he didn't know. On his own, he was running 4M as hard as he could every morning in 8th grade and got down already to 22:00! Impressive for that age.
On the other hand, he was healthy in high school and unhealthy since, and he ended up with a much longer career than either Hall or Webb. Hall was already running 85 mpw at altitude in Big Bear according to the Amby Burfoot article--doesn't say but implies it was junior year. Hall was weakened in the race, I understand, by the accutane treatments he had for acne. He had done a sub 50 downhill 10 miler around that time, showing a great deal of strength and distance promise, despite Deena saying he was a miler.
Here the future American 5000m record holder beats the future half record holder and the mile record holder at 5k. However, as desperate said, Webb was on the cusp of breaking 4 in the mile outdoors already as a junior. He ran the 3:59.9 1600m race at Penn Relays, which year after year produces slow times, and maybe 4:03 for mile, and then got injured and had the end of his season cut short. Then 3:53 as a senior was big, but no one thought he wouldn't smash 4 that year. In fact, that was his real focus. He ran the FL South XC course record in 14:43 in the rain, breaking the record by 9 seconds, before this but then did an absolutely insane workout for the mile in between regionals and nationals, which I can't find the details of, and it seemed that he ran out his legs on that day. By contrast, Ritz had a big cut in mileage and a finishing workout where he ran just 9x400 with 3x66, then 62s, then 58, 57, 55, shades at the end of what he'd do much later with Salazar.
If Webb'd been fresh and thus at full strength, Ritz might have had to go hard from the gun, and Webb was no slouch. In addition to the FL South record, he also ran a controlled 8:45 2M indoors in a much ballyhooed match with Nate Brannen, who disappointed a bit in 8:59. Webb didn't run the 5000m outdoors but would surely have hammered it. Ritz ran 13:44.7 to get right at Lindgren's old record (since beaten by Rupp in 13:37). Ritz then ran 13:27.9 as a freshman at Colorado, one day too old (born 12/30) to count as the American junior record (eventually, German Fernandez took that at 13:25). Later, of course, in his first season with Salazar and fast quarter workouts, he ran the AR 12:56, going from last to third in a race with Bekele. He also ran 27:22 in a tactical hot race at World's and 60 flat to take bronze at World Half, indicating that he was very much in shape to break Hall's HM record. But prior to that Webb actually had the faster 5000m of 13:10 in one serious pro attempt when he was in shape, compared to around 13:16 for Ritz. And in a year shot by injuries in 2006, I think, Webb ran 27:34 10000m at Stanford to beat Ritz in 27:35. On the other hand, Ritz was also the best xc runner we'd had since Craig Virgin probably, and earned bronze at World Junior that year, so tough to think Webb could beat him at it.