Federation · USA
United States national best marks
Best mark per athlete by United States athletes in each event, compiled from the all-time lists we import. Derived national bests — not official national records (see note below).
9
Stored athletes
9
Distinct marks shown
Women's 20 km Walk
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Maria Michta-Coffey | 1:30:49 | 3 May 2014 | — | — |
| 2 | Michelle Rohl | 1:31:51 | 13 May 2000 | — | — |
| 3 | Robyn Stevens | 1:32:15 | 2 Apr 2022 | — | — |
| 4 | Lauren Harris | 1:32:50 | 20 Sep 2025 | — | — |
| 5 | Miranda Melville | 1:33:04 | 2 Apr 2017 | — | — |
| 6 | Teresa Vaill | 1:33:23 | 1 Apr 2001 | — | — |
| 7 | Joanne Dow | 1:33:27 | 20 Mar 1999 | — | — |
| 8 | Chen Yueling | 1:33:40 | 16 Jul 2000 | — | — |
| 9 | Deborah Lawrence | 1:33:48 | 16 Jul 2000 | — | — |
One mark per athlete — the athlete's best while representing United States. Equal marks share a rank ("1=" style). An athlete with marks for two nations appears under each nation represented at the time (e.g. Obikwelu under Nigeria and Portugal).
About this derivation
These lists are derived from the marks in our database — including the complete legal all-time lists imported from alltime-athletics.com — grouped by the nation the athlete was representing at each mark. They are not official national records: federations ratify national records under their own eligibility rules, and some marks here may not qualify.