What is a good 10K time for a 55-year-old woman?
Regional class (70% age-graded) is 49:22. National class (80%) is 43:12. World class (90%) is 38:24. Those are the 10K times a 55-year-old woman needs against the world best for that age, graded with AJ 2025.
Tiers at 55
| Age grade | Tier | Time | min/km |
|---|---|---|---|
| 90% | World class | 38:24 | 3:50 |
| 80% | National class | 43:12 | 4:19 |
| 70% | Regional class | 49:22 | 4:56 |
| 60% | Local class | 57:35 | 5:46 |
| 50% | Recreational | 1:09:07 | 6:55 |
Ages 53 to 57
The tables are single-year. This is how much the target moves in the two years either side of 55.
| Age | 50%Recreational | 60%Local class | 70%Regional class | 80%National class | 90%World class |
|---|---|---|---|---|---|
| 53 | 1:07:30 | 56:15 | 48:13 | 42:11 | 37:30 |
| 54 | 1:08:17 | 56:54 | 48:47 | 42:41 | 37:56 |
| 55 | 1:09:07 | 57:35 | 49:22 | 43:12 | 38:24 |
| 56 | 1:09:56 | 58:17 | 49:57 | 43:43 | 38:51 |
| 57 | 1:10:48 | 59:00 | 50:34 | 44:15 | 39:20 |
Questions
What is a good 10K time for a 55-year-old woman?#
Against the world best adjusted for age, a 55-year-old woman scores 60% (local class) with 57:35, 70% (regional class) with 49:22, 80% (national class) with 43:12 and 90% (world class) with 38:24 over the 10K. Graded with AJ 2025.
What 10K time is 80% age-graded at 55 for women?#
43:12, which is 4:19 min/km. 80% is the usual shorthand for national class. In a big-city marathon field roughly one finisher in eighty reaches it.
Does the target change at 56?#
Yes, a little. The tables are single-year, so every birthday moves the target a few seconds over a 5K and a minute or two over a marathon. The rows for 53 to 57 on this page show the slope.
Where the numbers come from
Age grading divides the world best for the distance, adjusted for age and sex, by your time. 100% is that world best. The road factors are the AJ 2025tables, approved by USATF’s Masters Long Distance Running Council. The methodology page has the formula, and this post shows what 80% looks like across every distance.