Via the live splits, tracking Krissy Gear step-for-step to 1400m and hit 1600m in 4:36, 13 seconds clear of the field (assume Gear was pacing).
FR = Parker Valby at 8:42.29
8:31.56
(She says hi to Nikki Hiltz with that time)
Extrapolating her splits, she went roughly 4:17/4:14. And I'm guessing she had a fair amount more to give: her last five splits before the kick were within basically 0.1 second of each other, then she took off a half second on the penultimate lap, and then another nearly two seconds on the last one.