Age grading basics
What is age grading in running?
Age grading adjusts running results for age and gender so runners can compare performances more fairly across age groups.
5 min readUpdated 2026-05-13
Articles
Running guides for age-group performance.
Practical articles on age grading, race times and comparing results across age groups.
10K age grading
Why a 55-minute 10K means different things at 35, 52 and 57
A 55-minute 10K can represent different performance levels depending on age. See why age grading gives runners a fairer comparison.
5 min readUpdated 2026-05-13
Parkrun
Parkrun age grading explained
Parkrun age grading turns a 5K time into a percentage based on age and gender. Learn what it means, what it does not mean, and how to use it sensibly.
5 min readUpdated 2026-05-13
Masters running
What happens to running performance as you age?
Running performance changes with age, but the pattern is not simple. Learn what matters for age-group runners and why age grading helps add context.
6 min readUpdated 2026-05-13
Age grading basics
What is a good age-graded percentage in running?
Age-graded percentages help compare running performances across age and gender. Learn what 60%, 70%, 80% and 90% usually mean.
5 min readUpdated 2026-05-13
10K age grading
Is a 55-minute 10K good for my age?
A 55-minute 10K can mean different things depending on your age and gender. Learn how to judge it using age grading.
5 min readUpdated 2026-05-13
5K age grading
Good 5K time by age
A good 5K time depends on age, gender, training and course conditions. Learn how age grading gives a fairer 5K comparison.
6 min readUpdated 2026-05-13
10K age grading
Good 10K time by age
A good 10K time depends on age, gender, training and course conditions. Learn how age grading helps compare 10K performances fairly.
6 min readUpdated 2026-05-13
5K age grading
30-minute 5K age grading by age
A 30-minute 5K can mean different things at different ages. Learn how age grading adds context to a common 5K benchmark.
5 min readUpdated 2026-05-13
5K age grading
25-minute 5K age grading by age
A 25-minute 5K is a strong benchmark for many runners. Learn how age grading changes the way you compare it by age.
5 min readUpdated 2026-05-13
10K age grading
60-minute 10K age grading by age
A 60-minute 10K is a major milestone for many runners. Learn how age grading changes the way you compare it by age.
5 min readUpdated 2026-05-13
Race conditions
How heat and humidity affect running performance
Heat and humidity can slow running performance and increase effort. Learn why age grading does not account for weather and how to interpret hot-weather race times.
6 min readUpdated 2026-05-13
Half marathon age grading
Half marathon age grading explained
Learn how age grading adds context to half marathon results and why raw finish times are not always enough for age-group runners.
6 min readUpdated 2026-05-13
Marathon age grading
Marathon age grading explained
Learn how marathon age grading adds context to finish times, age-group comparisons and long-term running progress.
6 min readUpdated 2026-05-13
Masters running
Compare current race times with old PBs using age grading
Age grading can help runners compare current race results with old personal bests more fairly as they get older.
6 min readUpdated 2026-05-13
Age grading basics
How to use age grading without kidding yourself
Age grading is useful, but it is not magic. Here is how to use it honestly when comparing race times, old PBs and younger runners.
5 min readUpdated 2026-05-13
Race comparison
How to compare two runners of different ages fairly
Two runners can finish with the same time, but the age-graded context may tell a different story. Here is how to compare performances fairly.
5 min readUpdated 2026-05-13
Methodology
Why age-graded results are estimates, not rankings
TruePace Run age-graded results are useful estimates, not official rankings. Here is what the calculator can and cannot tell you.
5 min readUpdated 2026-05-13
Coming next
Planned article topics
These topics are in the content plan but are not published as article pages until they are useful enough to stand on their own.
Resources
Useful references for age-group runners
A short curated list of running, age grading, masters athletics, parkrun-distance and research links.