In my updates on Viking trio still running strong I didn’t see Sierra Atkins 5k mark in the same race as Hanne Thomsen’s.
The former Analy runner had a big PR in the race moving to 4th All-Time in the Redwood Empire with her 15:49.47 finish.

5,000 METERS
15:05.20 Kim Conley, USA (Montgomery ’04) Netherlands 6/9/19
15:24.74 Sara Bei, Stanford (Montgomery ‘01) at USATF 6/23/05
15:35.86 Alia Gray, Brooks (Maria Carrillo ’07) 4/3/15 Stanford
15:49.47 Sierra Atkins, Performance Elite Running Club (Analy ’19) 4/3/26 Stanford
15:54.66 Hanne Thomsen, Stanford (Montgomery ’25) 4/3/26 Stanford
16:08.10 Chris Boyd, Adidas (Empire Runners ’93) in 1995
16:09.83 Sarah Sumpter, UC Davis (Healdsburg ’08) at Stanford 3/29 13
16:29.07 Julia Stamps, Stanford (Santa Rosa HS ‘96)
16:32.05 Sydney Rivas, Cal Poly (Maria Carrillo ’18) at the UW Husky Classic indoor 2/10-11/23
16:32.35 Trina Cox, Abilene Christian (SRHS ’99, SRJC) Mt Sac 4/06