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HomeOpen MatsMassachusettsSomerville

Where Somerville Is Rolling This Week

3 open mats · 2 gyms · 0% no-gi · updated daily

Today's Mat Map

Happening now / soonLater todayAnother day
Open mats map for Somerville

Build Your BJJ Weekend

Pick a style and priority — we'll plan your Friday-to-Sunday.

Style
Priority
  1. Fri
    6:00 PM617 Brazilian Jiu Jitsu87
    Gi·Drop-in OK
    Go
  2. Sat
    12:00 PM617 Brazilian Jiu Jitsu87
    Open Mat·Drop-in OK
    Go
  3. Sun
    11:00 AMBrazilian Martial Arts Center84
    Open Mat·Drop-in OK
    Go

Your weekend: 3 sessions across 2 gyms.

Top Open Mats This Week

Ranked by the Open Mat Score™ — gym rating, popularity, how welcoming, and consistency.

  1. 1617 Brazilian Jiu JitsuFri 6:00 PM · Gi · Drop-in OK87Score
  2. 2617 Brazilian Jiu JitsuSat 12:00 PM · Open Mat · Drop-in OK87Score
  3. 3Brazilian Martial Arts CenterSun 11:00 AM · Open Mat · Drop-in OK84Score

Visiting Somerville?

Drop-in-friendly picks for travelers passing through.

Most welcoming
617 Brazilian Jiu Jitsu
Fri 6:00 PM · Drop-in OK
Best weekend mat
617 Brazilian Jiu Jitsu
Fri 6:00 PM · Drop-in OK
Hidden gem
617 Brazilian Jiu Jitsu
Smaller room, 5.0★ · Fri 6:00 PM

Somerville Open-Mat Snapshot

3
weekly open mats
Sunday
busiest day
11:00 AM
most common start
0%
no-gi

Full Weekly Schedule

Sunday

11:00 AMBrazilian Martial Arts CenterOpen Mat · Drop-in OK84

Friday

6:00 PM617 Brazilian Jiu JitsuGi · Drop-in OK87

Saturday

12:00 PM617 Brazilian Jiu JitsuOpen Mat · Drop-in OK87

Frequently asked

Are open mats free in Somerville?
Most Somerville open mats are free for members and charge a small visitor mat fee. Check each gym's listing for current pricing.
Do I need a membership to drop in?
No. Open mats are drop-in sessions — bring a clean gi (or rashguard for no-gi), water, and flip-flops, and roll. Message the gym first if you're brand new.
When are the most open mats in Somerville?
Sunday is the busiest day, and 11:00 AM is the most common start time. The weekend planner above builds you a Friday–Sunday schedule.
Where can I do no-gi in Somerville?
About 0% of Somerville's open-mat time is no-gi. Use the No-Gi filter in the weekend planner to see only those.

Run a gym in Somerville?

Claim your free listing to keep your schedule, open mats, drop-in prices, and photos current — and show up first when locals and travelers search. Takes a minute, free to start.

Claim Brazilian Martial Arts CenterClaim 617 Brazilian Jiu Jitsu

About the Open Mat Score™

The Open Mat Score (0–99) weighs the host gym's rating (30%), how well-known and busy it is by review volume (30%), how welcoming it is to visitors (20%), and how consistently it runs mats (20%). As Let's Roll check-ins grow, real attendance folds in.

Best BJJ gyms in Somerville·All Massachusetts open mats