| 2004 Top-20 Road & Track Performances of the Year - Open Women | ||||||||||||
| Rank | Name | Age | Race Name | Distance | Time | IAAF Scoring | IAAF Rank | Purdy Scoring | Purdy Rank | Ath.Perf. % | Ath. Perf. % Rank | |
| 1 | Melissa MacPherson | 24 | HP Up & Running | 10k | 37:49 | 867 | 1 | 491 | 4 | 79.11% | 1 | |
| 2 | Katie Litzenberger | 28 | California International | Marathon | 2:58:37 | 864 | 2 | 538 | 1 | 77.74% | 3 | |
| 3 | Melissa MacPherson | 24 | Johnny Mathis Invitational | 5000m | 18:13.29 | 829 | 3 | 495 | 3 | 79.00% | 2 | |
| 4 | Jen Major | 26 | San Francisco Home Depot | 1/2 Marathon | 1:25:42 | N/A | N/A | 477 | 6 | 76.78% | 8 | |
| 5 | Shelly Pierson | 36 | Heritage Oaks | 10k | 38:45 | 824 | 4 | 468 | 11 | 77.20% | 5 | |
| 6 | Jen Major | 26 | Johnny Mathis Invitational | 5000m | 18:32.19 | 798 | 10 | 479 | 5 | 77.66% | 4 | |
| 7 | Shelly Pierson | 35 | Cal 10 | 10 mile | 1:04:05 | N/A | N/A | 472 | 8 | 77.06% | 7 | |
| 8 | Alexandra Bigelow | 30 | Fleet Feet | 1 mile | 5:25.48 | 777 | 13 | 500 | 2 | 76.50% | 10 | |
| 9 | Alexandra Bigelow | 30 | HP Up & Running | 10k | 39:02 | 811 | 5 | 461 | 13 | 76.64% | 9 | |
| 10 | Katie Litzenberger | 27 | Humboldt | 1/2 Marathon | 1:26:21 | N/A | N/A | 470 | 9 | 76.20% | 13 | |
| 11 | Angela Hernandez | 31 | Jamba Juice | 5k | 18:40 | 785 | 12 | 473 | 7 | 77.12% | 6 | |
| 12 | Kathryn Krieger | 35 | Pacific Sun | 10k | 39:10 | 805 | 6 | 458 | 15 | 76.38% | 11 | |
| 13 | Shelly Pierson | 36 | Humboldt | 1/2 Marathon | 1:26:27 | N/A | N/A | 469 | 10 | 76.11% | 15 | |
| 14 tie | Jenny Wong | 28 | Across The Bay | 12k | 47:40 | *805 | 6 | *458 | 15 | 76.05% | 16 | |
| 14 tie | Alexandra Bigelow | 30 | Devil Mountain | 10k | 39:13 | 803 | 8 | 457 | 17 | 76.29% | 12 | |
| 16 | Shelly Pierson | 35 | Across The Bay | 12k | 47:50 | *799 | 9 | *455 | 19 | 75.78% | 17 | |
| 17 | Patti Bershers | 38 | Humboldt | 1/2 Marathon | 1:27:15 | N/A | N/A | 460 | 14 | 75.42% | 21 | |
| 18 | Alexandra Bigelow | 30 | Zippy | 5k | 18:54 | 763 | 18 | 464 | 12 | 76.16% | 14 | |
| 19 | Jenny Wong | 28 | Nutrition Fuels Fitness | 10k | 39:35 | 787 | 11 | 449 | 22 | 75.58% | 18 | |
| 20 tie | Alexandra Bigelow | 30 | Shriner's Capitol Challenge | 8k | 31:29 | *777 | 13 | 444 | 24 | 75.12% | 23 | |
| 20 tie | Patti Bershers | 37 | Zippy | 5k | 19:03 | 749 | 19 | 456 | 18 | 75.56% | 19 | |
| * Extrapolated from 10k point total | ||||||||||||
| Note: Overall Rank is based on the IAAF Scoring Tables of Athletics (2001 Edition), the Purdy-Gardner Scoring Tables (1996 & 1970 Editions), and the Athletics Performance Calculator % | ||||||||||||