A big props to Alyssa Snyder of Montana State who came in with a 16:32.56 5000m pr and ended up running 32:58.31 for 4th in the 10,000m.
We didn't get Alyssa's 5k split but extrapolating from her 4800m (15:51.32) and 5200m (17:08.52) splits she likely hit 5000 at 16:29.9 which means she ran back to back 5000m prs.
It doesn't get much better than that. Congrats to Alyssa.
Snyder has impoved a ton as she ran 17:10 and 37:22 last year.
I had been wanting the idea of official pb's/pr's to be re-analyzed for some time by the iaaf. Now just look at the last 800m of the women's 1500m in Rio where 1:57 was run by Kipyegon but her official 800m best was a lot slower (1:58). Heck Jenny Simpson did 1:59.2 but her official best is 2:00.45.