Yeah, pretty much. This is probably he most random sub 4 ever. 4:08 down to 3:59 as a junior's pretty insane. I wouldn't say it was completely out of nowhere, he's been running for a while, he was a 16:30's guy in 7th grade. Still, he didn't even break 4:20 last year in the 1600, so this is a pretty crazy progression.
When the lead guys let Aaron Sahlman pace the 3rd lap I thought all hope at sub 4 was lost, and as I had guessed they came through at ~3:03. Didn't think I'd see a Daschbach-esque 56sec close from any of those guys, but I guess I had forgotten about Birnbaum's finish at Arcadia. Really impressive stuff. Surprised by Kipyego as well. Hopefully Bergen and Donahue get another chance, I'm really routing for those guys.
Kipyego and Sahlman have it for sure next year, throw them into the list with the Youngs, Heidisch, Caudillo and Hansen, if those two guys don't already do it this year. Class of '23 is easily the greatest ever at this point, and It's not even close. Pretty hard to convince yourself that the shoe's don't have a large effect at this point, though.