American Masters 24 hr. Outdoor Track & Field Records
| pending | |
| women-only |
Last updated: 8/31/2009
Men
| Division | Peformance | Name | Location | Date |
| 40-44 | 252,308 m | Bernd Heinrich (43) | Brunswick, ME | 1983-Sep-03 |
| 45-49 | 237,954 m | Roy Pirrung (48) | Surgeres, FRA | 1997-May-03 |
| 50-54 | 221,367 m | Roy Pirrung (51) | Surgeres, FRA | 2000-Jun-03 |
| 55-59 | 219,723 m | Roy Pirrung (55) | San Diego, CA | 2003-Nov-08 |
| 60-64 | 202,123 m | Carlton Mendell (62) | Brunswick, ME | 1984-Sep-01 |
| 65-69 | 180,407 m | Beacham Toler (66) | Plano, TX | 1994-Nov-25 |
| 70-74 | 172,800 m | Edson Sower (72) | Phoenix, AZ | 1988-Jan-10 |
| 75-79 | 176,033 m | Ray Piva (77) | San Diego, CA | 2003-Nov-08 |
| 80-84 | 101,796 m | Edson Sower (80) | Phoenix, AZ | 1995-Dec-28 |
Women
| Division | Peformance | Name | Location | Date |
| 40-44 | 223,633 m | Pam Reed (42) | San Diego, CA | 2003-Nov-08 |
| 45-49 | 219,340 m | Sue Ellen Trapp (45) | Portland, OR | 1991-Sep-28 |
| 50-54 | 213,525 m | Sue Ellen Trapp (51) | Surgeres, FRA | 1997-May-03 |
| 55-59 | 213,930 m | Sue Ellen Trapp (56) | Dallas, TX | 2002-Nov-29 |
| 60-64 | 170,165 m | Helen Klein (62) | Santa Rosa, CA | 1985-Mar-16 |
| 65-69 | 176,223 m | Helen Klein (68) | Santa Rosa, CA | 1991-Mar-24 |