| 2004 Top-25 Road & Track Performances of the Year - Masters / Senior Men | ||||||||||
| Rank | Name | Age | Race Name | Distance | Time | Age Graded % | Age Graded Time | IAAF Scoring | Purdy Scoring | |
| 1 | Dan Nelson | 40 | Pacific Sun | 10k | 30:47 | 90.53% | 29:48 | 903 | 830 | |
| 2 | Dan Nelson | 40 | Heritage Oaks | 10k | 31:10.2 | 89.41% | 30:10 | 870 | 792 | |
| 3 | Jim Gorman | 55 | USA Masters Indoor T&F Champs. | 1 mile | 4:57.54 | 89.35% | 4:11.1 | 484 | 583 | |
| 4 | Lloyd Stephenson | 49 | HP Up & Running | 10k | 33:32 | 88.87% | 30:21 | 683 | 636 | |
| 5 | Jim Gorman | 55 | HP Up & Running | 10k | 35:30 | 88.19% | 30:35 | 546 | 559 | |
| 6 | Jim Gorman | 55 | USA Masters Indoor T&F Champs. | 3000m | 9:57.77 | 88.12% | 8:29.5 | 480 | 542 | |
| 7 | Dan Nelson | 40 | Jamba Juice | 5k | 15:20 | 87.91% | 14:45 | 774 | 701 | |
| 8 | Lloyd Stephenson | 49 | Cal 10 | 10 mile | 55:59 | 87.87% | 50:54 | N/A | 632 | |
| 9 | Don Paul | 53 | HP Up & Running | 10k | 35:19 | 87.17% | 30:57 | 558 | 564 | |
| 10 | Jim Gorman | 55 | Zippy | 5k | 17:23 | 87.08% | 14:54 | 462 | 540 | |
| 11 | Tim O'Rourke | 46 | Cal 10 | 10 mile | 55:13 | 86.94% | 51:22 | N/A | 655 | |
| 12 | Don Paul | 53 | Shriner's Capitol Challenge | 8k | 28:10 | 86.52% | 24:38 | N/A | 554 | |
| 13 | Lloyd Stephenson | 49 | Across The Bay | 12k | 41:45 | 86.37% | 37:52 | N/A | N/A | |
| 14 | Lloyd Stephenson | 49 | Big Sur | 5k | 16:45 | 86.05% | 15:05 | 549 | 579 | |
| 15 | Tim O'Rourke | 46 | Heritage Oaks | 10k | 33:53.1 | 85.94% | 31:23 | 587 | 621 | |
| 16 | Don Paul | 54 | Heritage Oaks | 10k | 36:10.4 | 85.82% | 31:26 | 502 | 537 | |
| *17 | Jim Gorman | 55 | San Francisco Home Depot | 5k | 17:28 | 86.67% | 14:58 | 451 | 535 | |
| 18 | Jim Gorman | 55 | News Channel 46 | 5k | 17:40 | 85.69% | 15:08 | 425 | 524 | |
| 19 | Jim Gorman | 55 | Pacific Sun | 10k | 36:34 | 85.61% | 31:30 | 477 | 525 | |
| 20 | Tim O'Rourke | 46 | NorCal John Frank Memorial | 10 mile | 56:08 | 85.52% | 52:14 | N/A | 628 | |
| 21 | Don Paul | 53 | Fleet Feet | 1 mile | 5:06.40 | 85.31% | 4:23.0 | 414 | 554 | |
| 22 | Tom Bernhard | 52 | Zippy | 5k | 17:20 | 85.18% | 15:14 | 468 | 542 | |
| 23 | Tim O'Rourke | 46 | Humboldt | 1/2 marathon | 1:15:04 | 85.14% | 1:10:04 | N/A | 634 | |
| 24 | Don Paul | 54 | Jamba Juice | 5k | 17:39 | 85.05% | 15:15 | 427 | 525 | |
| 25 | Don Paul | 53 | Cal 10 | 10 mle | 59:41 | 85.03% | 52:32 | N/A | 546 | |
| * Performance ranking adjusted due to course being predominantly downhill. | ||||||||||
| Note: Overall Rank is based on the Age-Graded % | ||||||||||