Boston 10K (fka B.A.A. 10K)
Boston, MA
- 10K
- Road (Paved)
- Official race website
The B.A.A. 10K provides runners a flat, urban course, and a festive celebration of summer running. The 6.2-mile course is a scenic tour through Boston’s Back Bay, passing notable neighborhoods and attractions including the campus of Boston University and Kenmore Square. The race begins on Charles Street, winds down picturesque … MORE
Local Historical Weather (Jun 21):
| 2025 | 2024 | 2023 | 2022 | 2021 | |
| H (°F) | 79 | 82 | 65 | 70 | 87 |
| L (°F) | 66 | 64 | 57 | 54 | 69 |
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Humid and crowded
More challenging race in 2025 than 2024 - warm and humid and quite crowded the first 2-3 miles made it difficult to find a consistent pace. The race may have … MORE
More challenging race in 2025 than 2024 – warm and humid and quite crowded the first 2-3 miles made it difficult to find a consistent pace. The race may have grown a bit too big for the course. The expanded course into the BU area was a nice change.
Good Course!
The new course was pretty good. It's pretty flat and goes through the Charles River which is very beautiful. Can't wait next year and run it again MORE
The new course was pretty good. It’s pretty flat and goes through the Charles River which is very beautiful. Can’t wait next year and run it again
PR on a Easy, New Course
Top flight production as usual by the BAA. New course this year going over the Longfellow Bridge, running along the Charles in Cambridge, looping back past the BU Bridge, then … MORE
Top flight production as usual by the BAA. New course this year going over the Longfellow Bridge, running along the Charles in Cambridge, looping back past the BU Bridge, then crossing the Mass Ave Bridge to finish up Boylston past the Marathon finish line and then by the Common. Easy course except for the Longfellow Bridge and the small hill by the BU bridge.
Rain downpour at 8 am wasn’t ideal, but otherwise weather cooperated
Nice medal, great after race food and drink; if you participate in the Distance Medley you get the dedicated tent with coffee, bagels, after race beer, etc.
10k
The race was extremely hot on June 23, 2023. It was the best time ever I have ever experienced and I can not wait to do it again. The course MORE
The race was extremely hot on June 23, 2023. It was the best time ever I have ever experienced and I can not wait to do it again. The course was amazing.
The weather makes or breaks this one...
...or at least that is my guess. As a spring or fall race in cooler weather, I might've loved it, but on a hot summer day with no shade in … MORE
…or at least that is my guess. As a spring or fall race in cooler weather, I might’ve loved it, but on a hot summer day with no shade in miles 3-4 it’s a tough one for someone who doesn’t enjoy hot weather running. (On a cooler day, course difficulty would go down to 1-2 shoes.) In ideal circumstances if I were going to run this again, I’d wait till a week before and check the weather before registering, though it’s a frequent sell out. As a result, the course can also be quite crowded.
Production and support are top notch, though, as one would expect from the BAA. T-shirt, medal, and as a bonus, great race photos, although there’s a hefty fee to download them. Highly recommend doing this as part of the distance medley for additional post-race goodies (BEER) and photo ops. I’m glad I ran it, I just wanted more shade!!
FUN, MOSTLY FLAT 10K
> Very fun atmosphere > Easy, flat course > No shade, if it is hot dress lightly > Great volunteers, lots of water stops > Very simple swag > Lots … MORE
> Very fun atmosphere
> Easy, flat course
> No shade, if it is hot dress lightly
> Great volunteers, lots of water stops
> Very simple swag
> Lots of charity runners, some people dress up in funny costumes
Great race in a beautiful city!
There were lots of runners at this race so great energy. Very well organized from the gear check to the post race goodies. I really enjoyed this race - the … MORE
There were lots of runners at this race so great energy. Very well organized from the gear check to the post race goodies. I really enjoyed this race – the course was mostly flat, and there were plenty of aid stations along the route. The weather was perfect – not too hot, and not humid. For me it was fun to run in a new city – I was visiting schools in Boston with my daughter and we did the race together. I hope to have the opportunity to do this one again in the future!
I was injured, so it was tough
I've run this race in the remnants of a tropical storm and I've run in in 80F heat with 100% humidity. I would say to expect it to be hot … MORE
I’ve run this race in the remnants of a tropical storm and I’ve run in in 80F heat with 100% humidity.
I would say to expect it to be hot and humid and you will be fine.
The course is crowded so get to the front if you want to PR. Otherwise, wait until Kenmore Square to make your move.
Great Course through Boston
The course starts in Boston Common and does an out and back on Commonwealth Ave and Beacon St. It finished back in the Commons. Because of the out and back … MORE
The course starts in Boston Common and does an out and back on Commonwealth Ave and Beacon St. It finished back in the Commons. Because of the out and back nature, if you can get to the 2 mile mark before the elite runners make it back to the 4 mile mark, you get a ringside seat to the race. Any BAA race is top quality and this one is no exception. This particular year, Shalane Flanagan set an American Record on a Road Course. It was an amazing day.
Run on parts of the Marathon course
This is the second race in the Boston Medley. The race starts and finishes in Boston Common. Most of the course is an out and back on Commonwealth St, so … MORE
This is the second race in the Boston Medley. The race starts and finishes in Boston Common. Most of the course is an out and back on Commonwealth St, so you run a good portion of the Marathon finish. The 10k does not turn up Hereford however, you keep straight on Commonwealth to the Commons. You will see the race leaders on the out and back portion of the course and will realize how fast they are going. A great course and well organized race. 2015 race was run in a frog strangling shower, but that only made it more fun.