r/bjj
Brazilian Jiu-Jitsu
Founded September 2008 · Public — anyone can post
Brazilian Jiu-Jitsu (BJJ) is a martial art that focuses on grappling and ground fighting. /r/bjj is for discussing BJJ training, techniques, news, competition, asking questions and getting advice. Beginners are welcome. Discussion is encouraged.
Members
933,493
933K
Online now
—
not captured in the last snapshot
Posts per day
18.7
from the last 100 posts, spanning 5.3 days
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
—
not enough history yet
Promo tolerance
—
not assessed yet
Last post
Sep 19
sampled Sep 19
Distinct posters
86%
of the last 100 posts
Tracking since Sep 19 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Tracking since Sep 19 — growth charts appear after a week of history.
Similar by content
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See the full lists on similar subreddits.
r/bjj — frequently asked
How many members does r/bjj have?
r/bjj has 933,493 members as of our most recent crawl on Sep 19. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/bjj growing?
We don't have 30 days of snapshot history for r/bjj yet, so we're not going to invent a growth number. We've been tracking it since Sep 19; the chart fills in as history accumulates.
How active is r/bjj?
Around 18.7 posts per day, measured from the newest 100 posts on Reddit, which span 5.3 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.
When was r/bjj created?
r/bjj was founded in September 2008 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Who posts in r/bjj?
Of the last 100 posts we sampled, 86% came from distinct accounts; the newest was published Sep 19. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.
Can I promote my product in r/bjj?
We don't have a promo-tolerance read for r/bjj yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/bjj for mentions?
Hit Watch on this page. Prowlo starts crawling r/bjj into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/bjj's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/bjj's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
Read-only · Human-in-the-loop
Prowlo never posts for you
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