WOMEN'S ALL-TIME U.S. 50K PERFORMANCE LIST
| Rank | Time | Athlete | Event | Date |
| 1 | 4:33:23 | Erin Taylor-Talcott | Olympic Trials, Santee, CA | 1/22/2012 |
| 2 | 4:34:46.5 | Erin Taylor-Talcott | Last Chance 50,000m, Banks, OR | 3/9/2014 |
| 3 | 4:38:11 | Erin Taylor-Talcott | US 50km Champs, Santee, CA | 12/14/2014 |
| 4 | 4:39:42 | Katie Burnett | US 50km Champs, Santee, CA | 12/14/2014 |
| 5 | 4:39:45 | Susan Armenta | US Champs, Chula Vista, CA | 2/17/2002 |
| 6 | 4:41:36 | Erin Taylor-Talcott | 40k, Ocean Twp, NJ | 9/11/2011 |
| 7 | 4:42:34 | Susan Randall | US 50km Champs, Santee, CA | 12/14/2014 |
| 8 | 4:49:42 | Susan Armenta | US Champs, Manassas, VA | 3/31/2001 |
| 9 | 4:50:40 | Erin Taylor-Talcott | USA 50km Champs, Coconut Creek, FL | 11/24/2013 |
| 10 | 4:57:11 | Erin Taylor-Talcott | US Champs, Surprise, AZ | 2/7/2010 |
| 11 | 5:11:04 | Erin Taylor-Talcott | US Champs, Tustin, CA | 1/23/2011 |
| 12 | 5:12:56 | Cheryl Rellinger | US Champs, Hauppauge, NY | 11/10/2002 |
| 13 | 5:16:20 | Tammy Stevenson | US Masters Champs, Houston, TX | 1/7/2012 |
| 14 | 5:17:22 | Jeanne Bocci | US 50k Champs, San Francisco, CA | 8/26/1979 |
| 15 | 5:19:34 | Sherry Brosnahan | US Champs, Manassas, VA | 3/31/2001 |
| 16 | 5:19:52 | Katie Grimes | US Masters Champs, Houston, TX | 1/7/2012 |
| 17 | 5:20:37 | Katie Grimes | US Champs, Tustin, CA | 1/23/2011 |
| 18 | 5:21:51 | Sherry Brosnahan | 40k Champs, Ocean Twp, NJ | 9/2/2002 |
| 19 | 5:25:18 | Daniela Harabedian | US Champs, Atlanta, GA | 4/8/1990 |
| 20 | 5:26:30 | Bev LaVeck | US Champs, Seattle, WA | 6/7/1981 |
| 21 | 5:27:07 | Erin Taylor-Talcott | Manx 100 mile challenge, Isle of Man | 8/3/2013 |
| 22 | 5:27:28 | Bev LaVeck | US Champs, Monterey, CA | 5/21/1983 |
| 23 | 5:29:04 | Anne Vanderhoff | Seattle, WA | 2/10/1980 |
| 24 | 5:30:35 | Jeanne Bocci | US Champs, Raleigh-Durham, NC | 2/21/1988 |
| 25 | 5:30:45 | Katie Grimes | US 50km Champs, Santee, CA | 12/14/2014 |
| 26 | 5:31:37 | Jeanne Bocci | US 100km Champs, Houston, TX | 12/20/1987 |
| 27 | 5:31:54 | Bev LaVeck | US 100km Champs, Arlington, VA | 11/5/1983 |
| 28 | 5:34:12 | Heidi Hauch | US Champs, Clermont, FL | 2/12/2006 |
| 29 | 5:34:38 | Bev LaVeck | US 100km Champs, Arlington, VA | 11/5/1983 |
| 30 | 5:37:10 | Katie Grimes | US Champs, Surprise, AZ | 2/7/2010 |
| 31 | 5:38:09 | Cheryl Rellinger | US Champs, Hauppauge, NY | 10/19/2003 |
| 32 | 5:40:28 | Jeanne Bocci | National AAU Champs, Detroit, MI | 9/10/1978 |
| 33 | 5:42:26 | Jill Latham | US Champs, Atlanta, GA | 4/8/1990 |
| 34 | 5:42:55 | Heidi Hauch | US Champs, Chula Vista, CA | 1/28/2007 |
| 35 | 5:44:23 | Diane Mendoza | US Champs, Monterey, CA | 5/21/1983 |
| 36 | 5:47:35 | Dorit Attias | US Champs, Clermont, FL | 2/13/2005 |
| 37 | 5:47:56 | June MacDonald | National AAU Champs, Detroit, MI | 9/10/1978 |
| 38 | 5:52:21 | Jill Latham | US Champs, Atlanta, GA | 3/5/1989 |
| 39 | 5:54:51 | Heidi Hauch | US Womens/Masters Champs, Houston, TX | 1/6/2008 |
| 40 | 5:56:32 | Monetta Roberts | US Champs, Manassas, VA | 3/31/2001 |
| 41 | 5:56:40 | Jennifer Marlborough | US Champs, Hauppauge, NY | 10/19/2003 |
This list represents a best attempt at capturing the fastest 50km women's performances in the USA and was tabulated by Dave Talcott.