Free tool

Boston qualifier calculator.

Enter your age on race day and a marathon time. You get your qualifying time for the Boston Marathon, how far under it you are, and how that time would have done against every recent cut-off, because the standard gets you an application, not a bib.

You and your marathon

Standards for the 2028 Boston Marathon, which the B.A.A. kept the same as 2026 and 2027. Your age on race day sets your age group.

– Your qualifying standard

Your time against recent cut-offs

RaceCut-offYour time

Times to aim for

TargetFinish timePer milePer km
How I read this

The qualifying time is the door. It is not the room. Treat 5:00 under as your minimum plausible target and 8:00 under as the number you want to be aiming for if you actually want to line up in Hopkinton. Not a 45-second cushion. A real buffer, built into the training block from the start.

Want a plan aimed at the buffer, not the standard?

I've coached more than 500 Boston-qualifying performances. I write your paces, workouts and recovery by hand and rewrite them every week. See how I coach a BQ, or start with a free 20-minute call.

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Boston Marathon qualifying times for 2028

The B.A.A. sets the standard by age group and gender, and your age on race day decides your group. The 2028 standards are the same as those for 2026 and 2027, and the qualifying window for 2028 opened on September 19, 2026. Non-binary athletes use the women's standards. Times are official chip times from a certified marathon course.

Age groupMenWomen / non-binary
18–342:55:003:25:00
35–393:00:003:30:00
40–443:05:003:35:00
45–493:15:003:45:00
50–543:20:003:50:00
55–593:30:004:00:00
60–643:50:004:20:00
65–694:05:004:35:00
70–744:20:004:50:00
75–794:35:005:05:00
80+4:50:005:20:00

The cut-off: how far under you really need to be

More runners qualify than the field can hold, so the B.A.A. accepts the fastest qualifiers relative to their standard and announces the cut-off at registration each September. Recent cut-offs:

  • 2027 race: 5:17 under the standard (announced September 29, 2026, with 25,630 qualifiers accepted).
  • 2026 race: 4:34 under.
  • 2025 race: 6:51 under.
  • 2024 race: 5:29 under.
  • 2023 race: no cut-off; every qualifier who applied got in.

For 2027 the B.A.A. also added a Boston Qualifier Selection: about 1,000 qualifiers who missed the cut-off were drawn at random for entry. It's a second chance, not a plan. The full history and how to build a block around it are in my Boston qualifying times guide.

Downhill courses

From the 2027 registration on, a qualifying time from a course with more than 1,500 feet of net downhill gets a time adjustment: 5:00 added for 1,500 to 2,999 feet, 10:00 for 3,000 to 5,999 feet, and courses with 6,000 feet or more don't count. The B.A.A. has said these adjustments may change before 2028 registration, so check its qualifying page before you pick a steep course.

Picking the race you qualify at

A flat course on a cool morning is worth minutes at marathon pace. The races I send BQ hopefuls to most are CIM, Houston, Chicago and the Last Chance BQ.2 Series; my Boston qualifier page compares them, and the full rankings are 23 US marathon courses by total climb and 24 races by race-morning weather. Once you know your goal pace, the pace calculator turns it into training paces.

FAQ

Qualifying for Boston, honestly answered.

What is the qualifying time for the Boston Marathon?

It depends on your age on race day and your gender. For the 2028 race the standards run from 2:55:00 for men and 3:25:00 for women and non-binary runners aged 18 to 34, easing with each age group to 4:50:00 and 5:20:00 for 80 and over. The B.A.A. kept the 2026 and 2027 standards for 2028.

Is running my qualifying time enough to get into Boston?

Usually not. More runners qualify than the field can hold, so accepted runners have needed 4:34 to 6:51 under their standard for every race from 2024 to 2027; the 2027 cut-off was 5:17. I'd aim for 5:00 under at a minimum and 8:00 under to be safe.

What was the cut-off for the 2027 Boston Marathon?

5 minutes 17 seconds. The B.A.A. announced on September 29, 2026 that qualifiers at least 5:17 under their age and gender standard were accepted, 25,630 in all, and about 1,000 more who missed the cut-off were drawn at random.

Does age on race day or on qualifying day count?

Age on race day. If you run your qualifier at 44 and turn 45 before Boston, you qualify against the 45 to 49 standard, which is ten minutes softer for both men and women.

Do downhill marathons count for a BQ?

Yes, with an adjustment from the 2027 registration on: 5:00 is added to times from courses with 1,500 to 2,999 feet of net downhill, 10:00 for 3,000 to 5,999 feet, and courses with 6,000 feet or more of net downhill are not eligible.

Your standard, plus the buffer. Let's plan it.

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