American Masters 50,000 m Outdoor Track & Field Records
| pending | |
| women-only |
Men
| Division | Performance | Name | Location | Date |
| 40-44 | 3:11:34.4 | John Loeschhorn (41) | Norwalk, CA | 1985-Dec-26 |
| 45-49 | 3:24:08 | Rae Clark (45) | Sacramento, CA | 1998-Jan-18 |
| 50-54 | 3:40:51 | Steve Stowers (50) | Sydney, AUS | 2016-Jun-18 |
| 50-54 | 3:39:26 (p) | Thomas Reiss (50) | Phoenix, AZ | 2018-Dec-09 |
| 55-59 | 3:17:26 | Otho Perkins (56) | Worthington, OH | 1986-Mar-23 |
| 60-64 | 3:34:45 | Mark Richtman (60) | Phoenix, AZ | 2015-Dec-19 |
| 65-69 | 4:09:07 | George Billingsley (67) | Sacramento, CA | 1990-Jan-01 |
| 70-74 | 4:38:03 | Gene Dykes (70) | Sharon Hill, PA | 2018-May-12 |
| 75-79 | 5:43:39 | George Billingsley (75) | Sacramento, CA | 1997-Jan-19 |
| 80-84 | 7:36:13 | Bill Dodson (81) | Riverbank, CA | 2016-Mar-16 |
Women
| Division | Performance | Name | Location | Date |
| 40-44 | 3:47:13 | Ann Trason (40) | Queen Creek, AZ | 2000-Dec-31 |
| 45-49 | 3:57:18 | Kristina Pham (45) | Phoenix, AZ | 2017-Dec-09 |
| 50-54 | 4:38:48 | Connie Gardner (50) | Phoenix, AZ | 2013-Dec-14 |
| 55-59 | 4:43:11 | Sue Ellen Trapp (56) | Dallas, TX | 2002-Nov-29 |
| 55-59 | 4:37:43 (p) | Connie Gardner (55) | Phoenix, AZ | 2018-Dec-09 |
| 60-64 | 5:40:01 | Dixie Madsen (60) | Orange, CA | 1997-Aug-02 |
| 65-69 | 5:24:08 | Maria Shields (65) | Sharon Hill, PA | 2016-May-15 |
| 70-74 | 11:24:37 | Barbara Ella (71) | Riverbank, CA | 2016-Mar-16 |
| 70-74 | 7:26:50 (p) | Janice O'Grady (70) | Auburn, CA | 2019-Jan-12 |