Compare Subreddits

r/baseball vs r/mlb

Side-by-side using public descriptions, members, growth and rule titles from SubMouse. Missing fields show as n/a. Adult communities are excluded.

Swap sides New comparison Related to r/baseball Related to r/mlb

MLB room vs baseball room

r/mlb’s public description is Reddit’s MLB community for discussions, news and highlights from all thirty teams. r/baseball calls itself a home for America’s pastime—mainly MLB, but other leagues and levels are welcome.

In our directory, baseball is larger (about 3.2M, rank #323) than mlb (about 3.1M, rank #339). Activity samples show baseball posting more often (~136 posts/day vs ~35). mlb’s sample is mix of text with image and link; baseball’s is mix of text with link and video. mlb flairs include Discussion, News, History, Image, Opinion; baseball shows News, Image, Opinion, Video, Analysis. Our directory lists each name among the other’s related communities.

Rule titles: mlb requires MLB-related posts and limits politics/religion and self-promo; baseball emphasizes high-quality titles, news, highlights and performance posts. Pattern matches nba-vs-basketball elsewhere on SubMouse.

Choose r/mlb for Major League–only news and discussion under its MLB-related rule.
Choose r/baseball for broader baseball coverage and higher-volume daily threads under its quality-title rules.
Sizes are close; baseball posts far more often in our sample. nba-vs-basketball is a related league-vs-sport pattern.

Written comparison based on public descriptions and rule titles · updated 2026-11-07.

r/baseball

America's Pastime

The BEST subreddit for America's pastime: baseball. The focus is mainly on MLB, but posts about other leagues and levels are welcome! Official r/baseball Discord: https://discord.gg/rbaseball Mike Trout For the best use…

Members: 3.2M
7-day growth: +3.6K
Posts/day: 136.3
Directory rank: #323
Created: Sep 7, 2008
Submissions: Text or links

Sample mix: text posts 36%, links 23%, videos 17%

Topics: Baseball, USA

Rule titles (short names we collected)

Be Civil to Others
Create High-Quality Content
Post with Clear and Satisfactory Titles
Create High-Quality Breaking News Posts
Create High-Quality Twitter/X.com Posts
Create High-Quality Video Highlights
Create High-Quality Game Performance Posts
Do Not Spam
Do Not Use r/baseball to Advertise
Create High-Quality Post-Series Threads
Create Accurate Elimination/Clinching Posts
Follow Paywall Guidelines

Open r/baseball on SubMouse

About this community: r/baseball (#323, about 3.2 million) is a major baseball community focused on MLB (other leagues welcome). Rules demand civility and high-quality content across titles, breaking news, Twitter/X posts, video highlights, performance posts, post-series threads, elimination/clinching posts; ban spam/ads; follow paywall and in-season vs off-season guidelines. Text/Link (~136.3 ppd).

r/mlb

Major League Baseball

Subreddit for Major League Baseball. Reddit’s MLB Community. From discussions, news, and highlights from all thirty teams.

Members: 3.1M
7-day growth: +1.5K
Posts/day: 34.6
Directory rank: #339
Created: Jan 20, 2009
Submissions: Text or links

Sample mix: text posts 36%, images 34%, links 16%

Topics: Baseball

Rule titles (short names we collected)

Follow all Reddiquette
All posts must be Major League Baseball-related
Be Nice
Broadcasting / Streaming
High Quality Content
Politics / Religion
Self Promotion
Report & Modmail

Open r/mlb on SubMouse

About this community: r/mlb (#339, about 3.1 million) is Reddit’s MLB community for discussions, news, and highlights from all thirty teams. Rules: Reddiquette; MLB-related only; be nice; broadcasting/streaming rules; high-quality content; no politics/religion; self-promo limits; use report & modmail. Text/Image (~34.6 ppd).

Supported differences

Aspect	r/baseball	r/mlb
Public focus (from each community’s public description)	The BEST subreddit for America's pastime: baseball. The focus is mainly on MLB, but posts about other leagues and levels are welcome! Official r/baseball Discord: https://discord.gg/rbaseball Mike Trout For the best use…	Subreddit for Major League Baseball. Reddit’s MLB Community. From discussions, news, and highlights from all thirty teams.
Size r/baseball is larger in our directory.	3.2M members	3.1M members
Posting activity (our sample)	136.3/day	34.6/day
Common post types in our sample	text posts 36%, links 23%, videos 17%	text posts 36%, images 34%, links 16%
Topic tags on SubMouse	Baseball, USA	Baseball
Selected rule titles (short names we collected)	Be Civil to Others; Create High-Quality Content; Post with Clear and Satisfactory Titles; Create High-Quality Breaking News Posts; Create High-Quality Twitter/X.com Posts	Follow all Reddiquette; All posts must be Major League Baseball-related; Be Nice; Broadcasting / Streaming; High Quality Content

What they share

Shared SubMouse topics: Baseball
Our directory lists each of these communities on the other’s related list.

Rules and posting patterns we can verify

mlb short titles include: Follow all Reddiquette; All posts must be Major League Baseball-related; Be Nice; Broadcasting / Streaming; High Quality Content; Politics / Religion; Self Promotion; Report & Modmail. Our sample mixes text, images and links with discussion and news flairs.

baseball: Be Civil to Others; Create High-Quality Content; Post with Clear and Satisfactory Titles; Create High-Quality Breaking News Posts; Create High-Quality Twitter/X.com Posts; Create High-Quality Video Highlights; Create High-Quality Game Performance Posts; Do Not Spam. Our sample is busier across text, links, video and images with news, opinion and analysis flairs.

Where this comparison comes from

Public descriptions and member counts from SubMouse’s safe-for-work directory. Short rule titles and activity samples SubMouse collected. Short titles only. Related curated page: nba-vs-basketball.

Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and post-type mixes appear when we have an activity sample. Rule lines are short titles, not the full sidebar. Directory rank is listing order — communities outside the current Top 100 open in the info tool instead of a full community page.

Comparisons we prepared

Hand-written explanations for pairs where the public descriptions and rules support a real distinction:

r/gardening vs r/houseplants — Outdoor plots and broad plant care versus indoor houseplant focus.
r/programming vs r/learnprogramming — Link-heavy programming news vs beginner question threads.
r/AskReddit vs r/NoStupidQuestions — Open-ended discussion prompts versus straightforward factual questions.
r/Cooking vs r/Baking — Stovetop technique discussion versus bake-share recipes and photos.
r/personalfinance vs r/Frugal — Budgeting and long-term money planning versus everyday frugality habits.
r/travel vs r/solotravel — General trip planning and photos versus solo-travel experiences and advice.
r/books vs r/suggestmeabook — In-depth book discussion versus dedicated recommendation requests.
r/suggestmeabook vs r/booksuggestions — Two recommendation rooms—similar job, different size and house rules.
r/pcmasterrace vs r/buildapc — PC culture, news and flex photos versus structured custom-build advice.
r/Art vs r/drawing — Serious art showcase with strict presentation rules versus a broader drawing practice room.
r/science vs r/askscience — Sharing new peer-reviewed research versus asking experts science questions.
r/explainlikeimfive vs r/NoStupidQuestions — Layperson explanations with strict answer rules versus a wider anonymous Q&A net.
r/personalfinance vs r/povertyfinance — Mainstream budgeting and investing help versus guidance aimed at financial hardship.
r/Games vs r/gaming — Newsy, informative games coverage versus a huge general gaming feed.
r/Coffee vs r/espresso — Wide coffee talk versus espresso-machine technique and gear.
r/photography vs r/itookapicture — Gear and technique discussion versus posting your own photos for critique.
r/dating_advice vs r/relationship_advice — Early dating situations versus advice on ongoing relationships between people.
r/hiking vs r/CampingandHiking — Day-hike photos and talk versus backpacking with overnight gear.
r/malefashionadvice vs r/femalefashionadvice — Parallel fashion-advice communities split by audience focus—not identical twins.
r/SkincareAddiction vs r/AsianBeauty — Science-leaning general skincare versus Asian beauty brands and routines.
r/Fitness vs r/bodyweightfitness — General gym-and-goals fitness discussion versus training with bodyweight progressions.
r/loseit vs r/Fitness — Sustainable weight-loss support versus general physical fitness goals and training.
r/DIY vs r/HomeImprovement — Show-your-work DIY projects versus text-only home improvement questions.
r/history vs r/AskHistorians — Casual history discussion and articles versus strictly moderated historical Q&A.
r/news vs r/worldnews — US-and-world news articles versus major world news that excludes US-internal stories.
r/Music vs r/listentothis — Broad music community posts versus discovery posts that stay under a popularity threshold.
r/writing vs r/WritingPrompts — Craft-of-writing discussion versus prompt-driven short stories and poems.
r/tipofmytongue vs r/whatisthisthing — Naming a half-remembered title or phrase versus identifying a mysterious physical object.
r/BuyItForLife vs r/Frugal — Durable long-life products versus everyday frugality and resourcefulness.
r/Parenting vs r/Mommit — All-parents child-rearing discussion versus a moms-only support room for the messier details.
r/LifeProTips vs r/YouShouldKnow — Actionable life tips versus facts framed as things you should know.
r/camping vs r/backpacking — Tent and campsite camping versus wilderness or travel backpacking with trip write-ups.
r/cscareerquestions vs r/learnprogramming — Tech career navigation versus learning to program in any language.
r/technology vs r/gadgets — Technology news and surrounding issues versus posts about a single gadget.
r/food vs r/EatCheapAndHealthy — Original food photography versus budget-friendly healthy recipes with text.
r/running vs r/AdvancedRunning — All-levels running discussion versus advanced training mindset and race tactics.
r/slowcooking vs r/Cooking — Crock-Pot style slow-cooker recipes versus general cooking discussion and recipes.
r/nba vs r/Basketball — NBA league news and discussion versus playing and watching basketball across leagues.
r/buildapc vs r/buildapcsales — Custom PC build planning advice versus PC-part deal links.
r/Breadit vs r/Baking — Homemade bread baking versus cakes, cookies, pies and general baking.
r/dogs vs r/Dogtraining — Responsible dog ownership discussion versus dedicated training and behavior help.
r/malefashionadvice vs r/frugalmalefashion — Men’s style advice and outfits versus male-fashion deals and coupons.
r/SkincareAddiction vs r/30PlusSkinCare — General science-leaning skincare versus skincare discussion aimed at people over 30.
r/OutOfTheLoop vs r/NoStupidQuestions — Catching up on a current meme or news loop versus asking any straightforward question.
r/space vs r/Astronomy — Space science and exploration news versus amateur astronomy observing and gear.
r/relationships vs r/relationship_advice — Structured interpersonal advice with question-type rules versus a high-volume room for specific situations.
r/gaming vs r/pcgaming — Broad gaming posts and memes-with-limits versus PC gaming news and discussion.
r/Europetravel vs r/travel — Europe-specific trip questions and stories versus worldwide travel discussion.
r/webdev vs r/javascript — Front- and back-end web development discussion versus JavaScript language and project talk.
r/Frugal vs r/povertyfinance — Waste-less frugal living habits versus money help for people struggling financially.
r/homestead vs r/gardening — Self-sufficiency, livestock and country life versus plant growing and care.
r/woodworking vs r/DIY — Woodworking and furniture making versus all kinds of DIY projects and repairs.
r/boardgames vs r/rpg — Modern board games news and discussion versus tabletop roleplaying games.
r/keto vs r/loseit — Ketogenic low-carb eating versus weight loss through any sustainable method.
r/changemyview vs r/unpopularopinion — Willingness-to-revise debate versus broadcasting an unpopular take.
r/Android vs r/iphone — Android platform news/tips versus iPhone enthusiast discussion.
r/cars vs r/MechanicAdvice — Enthusiast news and projects versus repair troubleshooting help.
r/Python vs r/learnpython — Python language hub versus learner Q&A helpdesk.
r/Jokes vs r/dadjokes — General joke threads versus dad-joke puns and groaners.
r/mildlyinteresting vs r/interestingasfuck — Quietly notable original photos versus content that aims to be truly striking.
r/Futurology vs r/technology — Evidence-leaning futures discussion versus technology news and surrounding issues.
r/movies vs r/television — Film news and discussion versus scripted television programming talk.
r/LifeProTips vs r/lifehacks — Actionable LPT-format advice versus uncommon physical-style life hacks.
r/AmItheAsshole vs r/relationship_advice — Moral-judgment verdicts on a conflict versus specific advice for a real relationship situation.
r/anime vs r/manga — Animated anime discussion versus manga (and manhwa/manhua) reading talk.
r/dating vs r/dating_advice — General dating discussion and venting versus situation-specific dating advice.
r/investing vs r/stocks — Broader investing discussion versus ticker- and market-focused stock talk.
r/AskMen vs r/AskWomen — Questions aimed at men’s experiences versus questions aimed at women’s perspectives.
r/MakeupAddiction vs r/SkincareAddiction — Makeup looks, products and questions versus science-leaning skincare routines.
r/streetwear vs r/malefashionadvice — Streetwear fit photos and discussion versus broader men’s fashion advice.
r/offmychest vs r/TrueOffMyChest — Supportive emotional sharing versus a stricter personal off-my-chest format.
r/hockey vs r/nhl — All-hockey discussion including leagues beyond the NHL versus NHL-focused news and talk.
r/astrophotography vs r/Astronomy — Amateur sky photos with gear notes versus broader astronomy discussion and learning.
r/CryptoCurrency vs r/Bitcoin — Multi-coin crypto news and discussion versus Bitcoin-only focus.
r/MadeMeSmile vs r/UpliftingNews — Feel-good images and videos versus positive news article links.
r/xxfitness vs r/Fitness — Fitness discussion centered on women and gender-diverse lifters versus the general Fitness wiki room.
r/smallbusiness vs r/Entrepreneur — Q&A for owning a small business versus broader entrepreneurship discussion.
r/Mommit vs r/daddit — Moms’ parenting support versus dads’ parenting support.
r/Damnthatsinteresting vs r/interestingasfuck — High-interest media shares versus “interesting as fuck” media shares—overlapping curiosity feeds with different rule bars.
r/getdisciplined vs r/productivity — Self-discipline accountability and methods versus productivity tips and tools.
r/financialindependence vs r/personalfinance — FIRE and financial independence goals versus everyday personal-finance budgeting and debt help.
r/learnart vs r/Art — Practice, feedback and learning resources versus a serious gallery of finished art.
r/soccer vs r/PremierLeague — Global football news and discussion versus English Premier League focus.
r/nfl vs r/fantasyfootball — NFL news and game talk versus fantasy-football strategy and roster advice.
r/sidehustle vs r/Entrepreneur — Extra income beside a full-time job versus broader entrepreneurship and startup talk.
r/careerguidance vs r/jobs — Career-path questions and advice versus job-search, interview and workplace threads.
r/legaladvice vs r/law — Personal legal questions versus news and discussion of the legal profession.
r/homeowners vs r/RealEstate — Living-in-the-house problems and vents versus buying, selling and investing talk.
r/EDM vs r/electronicmusic — Electronic dance music discovery and discussion versus a broader electronic-music room.
r/headphones vs r/audiophile — Portable cans, DACs and headphone amps versus home stereo and speaker-focused audiophile talk.
r/anime vs r/Animesuggest — General anime news and discussion versus dedicated what-to-watch suggestion requests.
r/whatsthisplant vs r/gardening — Plant identification photo requests versus growing, care and garden discussion.
r/MakeupAddiction vs r/Makeup — Makeup looks, hauls and product showcases versus a text-first tips-and-questions room.
r/selfimprovement vs r/getdisciplined — Broad self-improvement questions versus methods and plans for building discipline.
r/writing vs r/Screenwriting — General writing-craft discussion versus film and TV screenwriting craft and feedback.
r/Meditation vs r/yoga — Sitting meditation practice and insight versus yoga asana, lifestyle and community discussion.
r/cats vs r/dogs — Cat pictures, videos and light advice versus text-first responsible dog ownership discussion.
r/tea vs r/Coffee — Camellia sinensis and tea culture discussion versus coffee brewing, gear and community talk.
r/Guitar vs r/piano — Guitar gear, lessons and play videos versus piano practice, digital-piano help and performances.
r/analog vs r/photography — Film-photography shares with camera/film metadata versus digital-era photography discussion and technique.
r/MachineLearning vs r/datascience — Research-leaning machine-learning discussion versus professional data-science career and practice talk.
r/MealPrepSunday vs r/EatCheapAndHealthy — Batch meal-prep photos and planning versus eating healthy food on a tight budget.
r/femalelivingspace vs r/malelivingspace — Living-space tours and décor help framed for women versus living-space tours and advice framed for men.
r/worldbuilding vs r/writing — Invented worlds, lore and maps versus prose craft discussion for writers.
r/whatsthisbug vs r/whatisthisthing — Insect and spider identification versus general mysterious-object identification.
r/UKPersonalFinance vs r/personalfinance — UK pounds-and-pence personal finance versus the large US-leaning personal-finance wiki room.
r/crossfit vs r/Fitness — CrossFit methodology and sport discussion versus the broad Fitness wiki and programming room.
r/Justrolledintotheshop vs r/MechanicAdvice — Shop-floor “look what rolled in” war stories versus practical troubleshooting advice from mechanics.
r/Physics vs r/AskPhysics — Physics community for physicists and students versus a dedicated ask-a-physics-question room.
r/InteriorDesign vs r/architecture — Interior design and interior architecture of spaces versus architecture of buildings and practice.
r/beermoney vs r/sidehustle — Microtask and online beer-money sites versus broader side-hustle income beside a full-time job.
r/AskCulinary vs r/Cooking — Single-answer culinary technique questions versus broader cooking discussion and recipes.
r/DIY vs r/somethingimade — How-to DIY help and home projects versus showcasing finished handmade crafts you made.
r/homeautomation vs r/smarthome — DIY home-automation projects and setups versus smart-home product and platform help.
r/TrueCrime vs r/UnresolvedMysteries — True-crime discussion and media versus unresolved cases, disappearances and open mysteries.
r/comics vs r/comicbooks — Print comics, strips and webcomics (including OC) versus comic-book fandom discussion.
r/ZeroWaste vs r/Anticonsumption — Practical zero-waste living tips versus critique of consumerism and overconsumption.
r/Documentaries vs r/movies — Free documentary links and discussion versus general film news and movie talk.
r/nutrition vs r/loseit — Nutrition science discussion versus sustainable weight-loss community support.
r/graphic_design vs r/Design — Graphic-design education and critique versus broader design discussion and work shares.
r/blender vs r/3Dmodeling — Blender-specific showcase and help versus general 3D modeling across tools.
r/Jazz vs r/classicalmusic — Jazz listening and discussion versus classical music discussion and recommendations.
r/PersonalFinanceCanada vs r/personalfinance — Canada-specific personal finance versus the large US-leaning personal finance community.
r/Watercolor vs r/painting — Watercolor-specific painting and critique versus general painting gallery discussion.
r/simpleliving vs r/minimalism — Simple-living lifestyle discussion versus minimalism as intentional simplicity.
r/flexibility vs r/yoga — Stretching and mobility progress versus yoga practice and lifestyle discussion.
r/ThriftStoreHauls vs r/Frugal — Showing thrift and secondhand finds versus frugal living strategy discussion.
r/FrugalFemaleFashion vs r/femalefashionadvice — Budget women’s fashion deals and discussion versus broader female fashion advice.
r/Fantasy vs r/worldbuilding — Speculative-fiction reading and fandom discussion versus creating fictional worlds.
r/DigitalPainting vs r/drawing — Critique-focused digital painting versus general drawing shares across media.
r/oilpainting vs r/painting — Real oil-paint shares and technique versus general painting gallery discussion.
r/skiing vs r/snowboarding — Alpine skiing discussion versus snowboarding (Shreddit) gear, riding and travel questions.
r/startrek vs r/StarWars — Welcoming Star Trek discussion versus the large unofficial Star Wars franchise community.
r/formula1 vs r/NASCAR — Independent Formula 1 race discussion versus NASCAR news and race-day threads.
r/Meditation vs r/Mindfulness — Meditation practice experiences versus mindfulness as everyday awareness.
r/travel vs r/TravelHacks — General travel questions and trip reports versus cheap-travel tips and logistics hacks.
r/grilling vs r/smoking — Cooking over direct fire versus low-and-slow wood-smoke flavor techniques.
r/mlb vs r/baseball — Major League Baseball–only news and discussion versus broader baseball covering other leagues too.
r/Bitcoin vs r/BitcoinBeginners — Main Bitcoin discussion versus a beginners-only questions room with strict anti-scam norms.
r/todayilearned vs r/explainlikeimfive — Sourced “today I learned” fact posts versus simplified how-it-works explanations.
r/IAmA vs r/AMA — Large Ask Me Anything interview community versus a smaller general AMA room.
r/politics vs r/PoliticalDiscussion — High-volume political news links versus civility-focused political discussion threads.
r/DnD vs r/rpg — Dungeons & Dragons–specific posts versus broader tabletop RPG discussion across systems.
r/truegaming vs r/ShouldIbuythisgame — In-depth game discussion versus platform-tagged “should I buy this?” purchase advice.
r/TooAfraidToAsk vs r/NoStupidQuestions — Sensitive questions people hesitate to ask versus a huge anonymous general Q&A room.
r/options vs r/investing — Exchange-traded options strategies versus broader investing discussion (not personal-finance advice).
r/CreditCards vs r/personalfinance — Credit-card product discussion versus broad personal-finance budgeting and planning.
r/crochet vs r/sewing — Crochet finished objects and WIPs versus sewing projects, alterations and machine questions.
r/NintendoSwitch vs r/nintendo — Nintendo Switch (and Switch 2) news and questions versus broader Nintendo past-present-future discussion.
r/cycling vs r/bicycling — Text-only bike discussion versus a photo-friendly community for riders of every level.
r/PS5 vs r/playstation — PS5 news and discussion hub versus the casual PlayStation community for images, trophies and chat.
r/europe vs r/AskEurope — Link-based European news and data versus text questions to Europeans about their countries.
r/Cooking vs r/recipes — Text cooking discussion and questions versus a recipe-sharing feed with a required post format.
r/Cooking vs r/cookingforbeginners — General cooking discussion versus a no-gatekeeping room for people learning to cook.
r/Entrepreneur vs r/startups — Business-building discussion of every size versus companies designed to scale rapidly.
r/japan vs r/JapanTravel — General Japan news and discussion (no tourist posts) versus trip planning and travel tips for Japan.
r/marvelstudios vs r/Marvel — Marvel Studios films, series and the MCU versus Marvel Comics and its characters.
r/apple vs r/mac — Discussion of Apple as a whole (no tech support) versus a Mac-only community that takes questions.
r/legaladvice vs r/LegalAdviceUK — Simple legal questions (location required) versus UK-only legal triage for England, Wales, Scotland and Northern Ireland.
r/travel vs r/Shoestring — General travel questions and trip reports versus budget travel, cheap destinations and deals.
r/AskUK vs r/unitedkingdom — Questions about UK life and culture versus UK news, politics and society links.
r/stocks vs r/StockMarket — Serious stock and company discussion with position disclosure versus short- and mid-term trade ideas and market commentary.
r/pokemon vs r/pokemongo — Pokémon across games, shows, cards and art versus Pokémon GO, Niantic’s mobile game.
r/Minecraft vs r/Minecraftbuilds — The main Minecraft community for help, discussion and news versus a showcase for completed builds.
r/movies vs r/MovieSuggestions — Film news and discussion versus a room for requesting and giving movie recommendations.
r/college vs r/ApplyingToCollege — College life once you’re there versus admissions questions before you get in.

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