Boston Marathon qualifying times.
These are the 2027 Boston Marathon qualifying standards as the Boston Athletic Association publishes them — and beside each one, what no official chart tells you: the VDOT fitness the time actually demands, and the half marathon that proves you are in range. A BQ is a fitness claim; this page prices it.
How Boston Marathon qualifying works
Boston qualifies on age-graded standards: one required time per five-year age group in each division, easing with every step up in age. A qualifying performance must come from a certified marathon inside the qualifying window — for the 2027 Boston Marathon, the window began September 13, 2025 — and it earns exactly one thing: the right to submit an application during registration (September 14-18, 2026).
The grid rewards knowing your row precisely. Each five-year step is worth real minutes, and a season aimed at the wrong row is a season spent training for someone else's race. The table below is the complete published grid for all 11 age groups, carrying two computed columns no official chart has: the VDOT score each standard demands — the same fitness scale behind every page on this site — and the half-marathon time that corresponds to that fitness, a readiness test you can run this month instead of on marathon day.
The standards ladder
Men
| Age group | Standard | VDOT required | Half in range |
|---|---|---|---|
| 18-34 | 2:55:00 | 55.3 | 1:23:52 |
| 35-39 | 3:00:00 | 53.5 | 1:26:19 |
| 40-44 | 3:05:00 | 51.8 | 1:28:46 |
| 45-49 | 3:15:00 | 48.7 | 1:33:38 |
| 50-54 | 3:20:00 | 47.2 | 1:36:12 |
| 55-59 | 3:30:00 | 44.6 | 1:41:01 |
| 60-64 | 3:50:00 | 39.9 | 1:51:08 |
| 65-69 | 4:05:00 | 37 | 1:58:31 |
| 70-74 | 4:20:00 | 34.4 | 2:06:02 |
| 75-79 | 4:35:00 | 32 | 2:13:55 |
| 80 and older | 4:50:00 | 30 | 2:21:17 |
Women & non-binary
Boston Marathon publishes identical standards for the women's and non-binary divisions; the table below serves both.
| Age group | Standard | VDOT required | Half in range |
|---|---|---|---|
| 18-34 | 3:25:00 | 45.9 | 1:38:32 |
| 35-39 | 3:30:00 | 44.6 | 1:41:01 |
| 40-44 | 3:35:00 | 43.3 | 1:43:37 |
| 45-49 | 3:45:00 | 41 | 1:48:35 |
| 50-54 | 3:50:00 | 39.9 | 1:51:08 |
| 55-59 | 4:00:00 | 37.9 | 1:56:07 |
| 60-64 | 4:20:00 | 34.4 | 2:06:02 |
| 65-69 | 4:35:00 | 32 | 2:13:55 |
| 70-74 | 4:50:00 | 30 | 2:21:17 |
| 75-79 | 5:05:00 | 28.1 | 2:29:06 |
| 80 and older | 5:20:00 | 26.4 | 2:36:52 |
Standards verified against baa.org on 2026-07-30 — the tables above render them unmodified. Registration systems change; the source page is authoritative.
Reading your row: the standard is the time the Boston Athletic Association requires; the VDOT beside it is the fitness that time demands on the Daniels scale; and the half-in-range column expresses the same fitness as a half marathon — the cheapest honest readiness test there is. Race a half at or under your row's half column and the fitness question is settled; what remains is marathon-specific preparation. Each standard links the nearest goal page at or under it on our marathon ladder — full splits, training paces, and readiness evidence for that time.
Train for the row, not the dream.
Why Not turns your Boston row into a training block: the same engine that computed the VDOT column builds the marathon plan that closes your gap, re-pricing your paces after every run inside the window. A full year costs less than the cheapest month of human coaching.
Build my qualifying blockQualifying vs. entry
Now the honest part, in the Boston Athletic Association's own words: achieving one's qualifying standard “does not guarantee entry into the event, but simply the opportunity to submit a registration application.” When applications exceed the field, the fastest applicants within each age and gender group are accepted first. The effective margin is set by demand, each year, after the window closes — which is why this page makes no cutoff predictions and trusts none. The only strategy that survives that system is fitness beyond your row.
Where do you stand against your row?
Enter a recent race plus your age and division, and this compares your current VDOT against the one your Boston row demands — your score, the required score, and the gap. Computed locally from the same engine as the table; nothing is stored or sent anywhere.
Boston Marathon qualifying FAQ
A BQ — Boston Qualifier — is a marathon finish at or under the qualifying standard for your age group and division, run at a certified race inside the qualifying window. For the 2027 Boston Marathon the window began September 13, 2025. A BQ earns the right to apply during registration; it is not a bib.
No. The Boston Athletic Association is explicit that a qualifying time earns the opportunity to apply. When demand exceeds the field, the fastest applicants in each age and gender group are accepted, so the effective cutoff moves with demand each year. Aim under your row, not at it.
The window began September 13, 2025, and registration is listed as September 14-18, 2026. Both come from the official source linked under the table — where any change would appear first.
They are computed, not official. Each standard runs through the Daniels–Gilbert formulas — the engine behind every page on this site — to get the VDOT it requires, and that VDOT is expressed as an equivalent half marathon. Race the half at or under the column and your fitness is in range for your row, with Daniels’ own caveat: equivalence assumes marathon-specific training.
This page will not pretend to know. The margin that clears the field in a given year is a function of that year’s applications, and it is knowable only afterwards. What you control is fitness: train for the ladder rung below your standard and arrive with margin as a byproduct rather than a gamble.
Every number on this page is computed from our own implementation of the Daniels–Gilbert formulas published in Daniels' Running Formula (Jack Daniels & Jimmy Gilbert) — the same library the Why Not app runs. Nothing is transcribed from the book's tables, and this site is not affiliated with or endorsed by the authors. Equivalent times assume you train appropriately for the target distance; that caveat is Daniels' own.
A coach for the price of a coffee run.
A human marathon coach runs $100 to $300 a month and rebuilds your plan when you email them. Why Not runs the same Daniels VDOT engine behind every number on this page and adapts after every workout. A full year of the app costs less than the cheapest month of human coaching.
Start 7 days free