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How to Qualify for the Boston Marathon: Advice From a 2:17 Marathoner
The qualifying times, why the cutoff matters more than the standard, how to choose your BQ race, and how to train for it.
Quick answer
To run Boston, you need a marathon time under the standard for your age and gender, run on a certified course during the qualifying window. For men aged 18 to 34 that's 2:55:00; for women and non-binary runners it's 3:25:00. But a qualifying time only lets you apply. For the 2027 race, you needed to beat your standard by 5 minutes 17 seconds to be accepted. So aim for at least 6 to 7 minutes under, on a fast, flat course, in cool weather.
I've raced marathons on both sides of the Atlantic, including Houston, one of the US races runners target for a fast time. In this guide I'll cover the qualifying times, why the cutoff matters more than the standard, how to pick your qualifying race, and how to train for it.
Boston is the iconic race. I had the chance to run it years ago and chose London instead, and even now, in my veteran years, it's the one I'd make the effort to train for again. The rolling course, the crowds and the city put it in the conversation as the best marathon in the world. For me it's only a whisker behind London.
Boston Marathon qualifying times
These are the B.A.A. standards for the 2027 race, unchanged from 2026. Your age is your age on race day, and times are official chip times.
| Age group | Men | Women and non-binary |
|---|---|---|
| 18–34 | 2:55:00 | 3:25:00 |
| 35–39 | 3:00:00 | 3:30:00 |
| 40–44 | 3:05:00 | 3:35:00 |
| 45–49 | 3:15:00 | 3:45:00 |
| 50–54 | 3:20:00 | 3:50:00 |
| 55–59 | 3:30:00 | 4:00:00 |
| 60–64 | 3:50:00 | 4:20:00 |
| 65–69 | 4:05:00 | 4:35:00 |
| 70–74 | 4:20:00 | 4:50:00 |
| 75–79 | 4:35:00 | 5:05:00 |
| 80+ | 4:50:00 | 5:20:00 |
Source: Boston Athletic Association qualifying standards.
The rules that catch people out:
- The course must be certified by USATF, AIMS or the host country's governing body. Most big-city marathons are.
- It must be a real race: outdoors, exactly 26.2 miles, with official timing. Virtual, treadmill and time-trial marathons don't count.
- Steep downhill courses get a penalty. From 2027, a course that drops 1,500 feet or more has time added to your result, and a drop of 6,000 feet or more isn't accepted.
Why the cutoff matters more than the standard
A BQ only lets you apply. Far more runners qualify than there are places, so the B.A.A. accepts the fastest relative to their standard. That margin is the cutoff.
| Race year | You needed to beat your standard by | Qualifiers turned away |
|---|---|---|
| 2027 | 5:17 | 8,019 |
| 2026 | 4:34 | 8,887 |
| 2025 | 6:51 | 12,324 |
| 2024 | 5:29 | 11,039 |
From 2027, the B.A.A. also draws 1,000 places at random from qualifiers who missed the cutoff, roughly a one-in-nine chance.
My advice: treat your real target as your standard minus 7 minutes. A 40-year-old man with a 3:05 standard should be training for about 2:58.
How to choose your Boston qualifying race
The race you pick can be worth several minutes, which is often the difference between making the cutoff and missing it. Look for four things:
- Flat. Every hill costs you time you won't fully get back.
- Cool. Ideal marathon weather is roughly 40 to 55°F (5 to 13°C). Heat is the biggest time-killer, and most runners underestimate it.
- Big enough to have groups. Running in a pack, or with official pacers, saves energy, especially into a headwind.
- Easy logistics. A short trip to the start and a hotel nearby mean you arrive relaxed.
Houston Marathon, Texas: January
Houston is one I've raced, and a race many American runners target for a BQ. It's known for a flat, fast course, and January weather is usually cool: the race says it averages about 45°F (7°C) at the start and 60°F (16°C) by the finish. The American half marathon record was set on the same streets.
My own Houston story is a warning, though. I ran it in the build-up to the 2014 Commonwealth Games in Glasgow, to put down an early qualifying time. That year it was a freak day: brutal storms, with unrelenting rain and wind in the early miles. My pacing group dropped away one by one until I was on my own, and at about 18 miles I dropped out and ended up in an ambulance with hypothermia. The storm blew over later in the morning.
That was bad luck, not the race's fault. A January marathon with good weather is rare, and that's what Houston usually gives you. But it taught me a lesson every BQ runner should take: no race can promise you good weather, so leave time in your qualifying window for a second attempt.
Best for: an early-year BQ, with a training block through the autumn.
Qualify in Europe and make a trip of it
Boston accepts times from any certified course worldwide, so a European marathon can be your BQ and your holiday. These are the three I'd pick for a qualifying time:
- Seville, February: about 10 metres (33 feet) of total climb, cool and dry, and a recognised Boston qualifier. It's where I ran my 2:17:36 personal best.
- Valencia, December: very flat, with a reputation for fast times and deep fields.
- Berlin, September: flat and famous, though it can be warm and the ballot is hard to get through.
I've written about all three, and nine more, in the 10 best marathons in Europe.
Use your travels to train
My first marathon block began on honeymoon in California and Arizona. The flat coastline at Huntington Beach and San Diego made for easy, flat miles. The red rocks of Sedona made for interesting runs, and forest trails at altitude near Flagstaff added variety. You don't need a training camp: a trip with some flat paths and a few hills can be a great start to a block.
How to train for your BQ
Most runners who miss a BQ don't lack fitness. They train for the standard instead of the cutoff, race the wrong course, or go off too fast. Here's how I'd set up a block.
1. Set your pace from the cutoff, not the standard. Take your standard, subtract about 7 minutes, and that's your goal. For a 40-year-old man that's about 2:58, or 6:47 a mile (4:13 per km).
2. Give yourself 16 weeks, in four phases.
- Base (weeks 1–4): mostly easy running to build weekly mileage safely.
- Build (weeks 5–8): add threshold runs and hills, and lengthen the long run.
- Marathon-specific (weeks 9–13): long runs with miles at goal pace. This is where a BQ is won.
- Taper (weeks 14–16): cut volume, keep some pace work, and arrive fresh.
3. Practise fuelling. Take gels or drinks in every long run over 90 minutes, so your stomach is trained as well as your legs.
4. Run an even race. Aim to run the first half no faster than goal pace. Banking time early is the most common way BQs are lost after 20 miles.
5. Respect the weather. If race day is warmer than you trained in, slow down early rather than late. And if it's wild, cold or wet, staying warm matters more than your splits. A DNF is better than hypothermia.
My key BQ session: a long run of over 20 miles with spells of faster running mixed in, at the pace you hope to race. It gives you a taste of what the marathon feels like: running goal pace on tired legs. That's the skill a BQ comes down to.
Want help getting your BQ?
I'm Martin Williams, a former GB and Scotland international with a 2:17:36 marathon best. I coach runners online, wherever they live: a personal plan in the RunnersRoute app, regular adjustments as your training goes, and video review calls. UK evenings line up with US afternoons, so calls are easy to fit in.
There's no minimum term, and the first consultation is free. We'll look at your current times, your standard and the cutoff, and work out whether your BQ is realistic this cycle or next.
FAQs
What is a BQ?
A BQ is a Boston qualifying time: a marathon finish under the standard for your age and gender, run on a certified course during the qualifying window.
What is the Boston qualifying time for my age?
For 2027, men aged 18 to 34 need 2:55:00 and women and non-binary runners 3:25:00, with more time allowed in each older age group. The full table is above.
Is running my qualifying time enough to get in?
No. It lets you apply, but places go to the fastest relative to their standard. For 2027 you needed to be 5 minutes 17 seconds under. Aim for 6 to 7 minutes under to be safe.
Can I qualify for Boston at a marathon outside the US?
Yes, as long as the course is certified by AIMS or the host country's governing body. Seville, Valencia and Berlin are all certified courses with a reputation for fast times.
What is the best race to qualify for Boston?
A flat course with cool weather and big groups to run with. Houston in January is a popular choice in the US; in Europe, Seville, Valencia and Berlin.
How long does it take to train for a Boston qualifier?
About 16 weeks of focused marathon training, after a solid base of regular running. If you need to take a big chunk off your time, it may take more than one cycle.
More marathon guides: the 10 best marathons in Europe · marathon coaching with Martin Williams · London Marathon build-up guide