https://bjjmath.com/blog/ Source-cited guides on BJJ competition, gear, weight cutting and training. en-us Wed, 01 Jul 2026 00:00:00 GMT https://bjjmath.com/blog/how-much-does-bjj-cost/https://bjjmath.com/blog/how-much-does-bjj-cost/Wed, 01 Jul 2026 00:00:00 GMTHow much does BJJ cost? A transparent breakdown of monthly membership, first-year gear, and hidden costs — plus where beginners overspend.https://bjjmath.com/blog/estimate-1rm-without-maxing-out/https://bjjmath.com/blog/estimate-1rm-without-maxing-out/Wed, 01 Jul 2026 00:00:00 GMTEstimate your one-rep max without maxing out: why grapplers shouldn't test a true max, the Epley and Brzycki formulas, and how to train off percentages.https://bjjmath.com/blog/reddit-how-much-weight-can-you-cut-for-bjj/https://bjjmath.com/blog/reddit-how-much-weight-can-you-cut-for-bjj/Wed, 01 Jul 2026 00:00:00 GMTHow much weight can you cut for a BJJ tournament? The r/bjj take: cut slowly, skip big water cuts for same-day IBJJF weigh-ins, or move up a division.https://bjjmath.com/blog/bjj-overtraining-signs/https://bjjmath.com/blog/bjj-overtraining-signs/Wed, 01 Jul 2026 00:00:00 GMTAre you overtraining in BJJ? The warning signs — fatigue, nagging injuries, stalled progress — and how to balance training load against recovery.https://bjjmath.com/blog/best-way-to-cut-weight-ibjjf/https://bjjmath.com/blog/best-way-to-cut-weight-ibjjf/Wed, 01 Jul 2026 00:00:00 GMTThe best way to cut weight for a same-day IBJJF weigh-in: cut gradually, keep final-days water small, remember the gi counts, and when to move up.https://bjjmath.com/blog/home-bjj-mat-setup-cost/https://bjjmath.com/blog/home-bjj-mat-setup-cost/Wed, 01 Jul 2026 00:00:00 GMTHow much does a home BJJ mat setup cost? Mat types, cost per square foot, how much space you need, and whether a garage dojo is worth it.https://bjjmath.com/blog/why-havent-i-been-promoted-bjj/https://bjjmath.com/blog/why-havent-i-been-promoted-bjj/Wed, 01 Jul 2026 00:00:00 GMTWhy haven't I been promoted in BJJ? It's usually normal. Typical time per belt, the IBJJF minimums, what drives your pace, and why chasing belts backfires.https://bjjmath.com/blog/how-many-bjj-gis-do-you-need/https://bjjmath.com/blog/how-many-bjj-gis-do-you-need/Wed, 01 Jul 2026 00:00:00 GMTHow many BJJ gis do you need? It comes down to how often you train and how long a gi takes to dry. A simple guide to sizing your gi rotation.https://bjjmath.com/blog/lightweight-competition-gi-worth-it/https://bjjmath.com/blog/lightweight-competition-gi-worth-it/Wed, 01 Jul 2026 00:00:00 GMTIs a lightweight competition gi worth it? IBJJF weighs you in your gi, so a lighter gi saves grams — here's when it matters and when it doesn't.https://bjjmath.com/blog/how-much-protein-for-bjj/https://bjjmath.com/blog/how-much-protein-for-bjj/Wed, 01 Jul 2026 00:00:00 GMTHow much protein for BJJ? Around 1.6–2.2 g per kg of bodyweight a day supports recovery. Why it matters, cutting vs building, and whether you need shakes.https://bjjmath.com/blog/what-weight-class-am-i-bjj/https://bjjmath.com/blog/what-weight-class-am-i-bjj/Wed, 01 Jul 2026 00:00:00 GMTWhat weight class am I in for BJJ? How divisions work, why IBJJF includes the gi, the full IBJJF and ADCC divisions, and where people miscalculate.https://bjjmath.com/blog/does-bjj-help-you-lose-weight-reddit/https://bjjmath.com/blog/does-bjj-help-you-lose-weight-reddit/Wed, 01 Jul 2026 00:00:00 GMTDoes BJJ help you lose weight? Yes — it burns serious calories and builds consistency, but diet still decides. What r/bjj weight-loss threads show.https://bjjmath.com/blog/is-an-expensive-bjj-gi-worth-it/https://bjjmath.com/blog/is-an-expensive-bjj-gi-worth-it/Wed, 01 Jul 2026 00:00:00 GMTIs a $150+ BJJ gi worth it, or is a budget gi fine? What your money actually buys, when premium pays off, and why fit beats brand every time.https://bjjmath.com/blog/reddit-bjj-competition-questions-answered/https://bjjmath.com/blog/reddit-bjj-competition-questions-answered/Wed, 01 Jul 2026 00:00:00 GMTFirst BJJ competition? The questions r/bjj asks most, answered: scoring, weigh-ins, match length, weight and age divisions, and what to bring on the day.https://bjjmath.com/blog/cheap-vs-expensive-bjj-gi/https://bjjmath.com/blog/cheap-vs-expensive-bjj-gi/Wed, 01 Jul 2026 00:00:00 GMTCheap vs expensive BJJ gi: what the price difference buys — fabric, weave, GSM, durability and competition weight — and which tier is right for you.https://bjjmath.com/blog/how-to-size-a-bjj-gi-online/https://bjjmath.com/blog/how-to-size-a-bjj-gi-online/Wed, 01 Jul 2026 00:00:00 GMTHow to size a BJJ gi you can't try on: a repeatable method using the A-scale, brand charts, your build, and shrinkage — so ordering online isn't a gamble.https://bjjmath.com/blog/reddit-bjj-gi-sizing-questions-answered/https://bjjmath.com/blog/reddit-bjj-gi-sizing-questions-answered/Wed, 01 Jul 2026 00:00:00 GMTBJJ gi sizing answered: how A-sizing works, A1 vs A2 vs A3, whether to size up for shrinkage, and the between-sizes fixes r/bjj asks about most.https://bjjmath.com/blog/gi-vs-no-gi-for-weight-loss/https://bjjmath.com/blog/gi-vs-no-gi-for-weight-loss/Wed, 01 Jul 2026 00:00:00 GMTGi vs no-gi for weight loss: which burns more calories? The honest answer — the difference is small, and consistency matters far more than either.https://bjjmath.com/blog/how-many-calories-does-bjj-burn/https://bjjmath.com/blog/how-many-calories-does-bjj-burn/Wed, 01 Jul 2026 00:00:00 GMTHow many calories does BJJ burn? Often 400–800+ per hour by weight and intensity. The MET math, why your watch is wrong, and how to estimate yours.https://bjjmath.com/blog/ibjjf-vs-adcc-rules-weigh-ins/https://bjjmath.com/blog/ibjjf-vs-adcc-rules-weigh-ins/Wed, 01 Jul 2026 00:00:00 GMTIBJJF vs ADCC: gi vs no-gi, points vs submissions, same-day vs day-before weigh-ins, and legal leg locks. A clear comparison to pick your event.https://bjjmath.com/blog/what-reddit-says-about-expensive-bjj-gis/https://bjjmath.com/blog/what-reddit-says-about-expensive-bjj-gis/Wed, 01 Jul 2026 00:00:00 GMTIs an expensive BJJ gi worth it? The r/bjj consensus: fit beats brand, budget gis are fine, premium buys durability and looks — not skill.https://bjjmath.com/blog/how-much-water-for-bjj/https://bjjmath.com/blog/how-much-water-for-bjj/Wed, 01 Jul 2026 00:00:00 GMTHow much water do you need for BJJ? A daily baseline plus your sweat losses. How to measure your sweat rate, why you cramp, and stay hydrated.https://bjjmath.com/blog/why-do-i-gas-out-bjj/https://bjjmath.com/blog/why-do-i-gas-out-bjj/Tue, 30 Jun 2026 00:00:00 GMTGassing out after one round? Why it happens (mostly it's not your cardio) and the technique, breathing and conditioning fixes that build a real gas tank.https://bjjmath.com/blog/bjj-weight-cutting-reddit/https://bjjmath.com/blog/bjj-weight-cutting-reddit/Tue, 30 Jun 2026 00:00:00 GMTWhat r/bjj says about cutting weight for a tournament: skip big water cuts for same-day IBJJF weigh-ins and pick a division near your walking weight.https://bjjmath.com/blog/surviving-first-months-white-belt/https://bjjmath.com/blog/surviving-first-months-white-belt/Tue, 30 Jun 2026 00:00:00 GMTGetting smashed every round as a new white belt? That's normal. How to survive, what to focus on, and how to roll with bigger people without getting hurt.https://bjjmath.com/blog/how-long-to-blue-belt-reddit/https://bjjmath.com/blog/how-long-to-blue-belt-reddit/Tue, 30 Jun 2026 00:00:00 GMTHow long does a BJJ blue belt take? The r/bjj consensus is about 1.5–3 years of consistent training — and the real advice: stop chasing belts.https://bjjmath.com/blog/do-you-need-to-lift-for-bjj/https://bjjmath.com/blog/do-you-need-to-lift-for-bjj/Tue, 30 Jun 2026 00:00:00 GMTDoes strength training help your jiu-jitsu or just make you a stronger white belt? The honest take, plus how to lift without wrecking recovery.https://bjjmath.com/blog/cauliflower-ear-prevention-treatment/https://bjjmath.com/blog/cauliflower-ear-prevention-treatment/Tue, 30 Jun 2026 00:00:00 GMTWhat causes cauliflower ear in BJJ, how to prevent it, and what to do at the first sign of swelling. Educational, not medical advice.https://bjjmath.com/blog/am-i-too-old-to-start-bjj/https://bjjmath.com/blog/am-i-too-old-to-start-bjj/Tue, 30 Jun 2026 00:00:00 GMTToo old for BJJ? An honest answer on starting jiu-jitsu in your 30s, 40s or beyond — what changes with age, what doesn't, and how to train smart.https://bjjmath.com/blog/best-bjj-gi-reddit/https://bjjmath.com/blog/best-bjj-gi-reddit/Tue, 30 Jun 2026 00:00:00 GMTThe gis r/bjj recommends most: Sanabul and Elite Sports for value; Tatami, Hyperfly, Kingz mid-range; Origin and Shoyoroll premium. Fit beats brand.https://bjjmath.com/blog/why-am-i-not-improving-bjj/https://bjjmath.com/blog/why-am-i-not-improving-bjj/Tue, 30 Jun 2026 00:00:00 GMTFeeling stuck in jiu-jitsu? Why plateaus happen, why you're probably better than you feel, and the concrete things that actually get you progressing again.https://bjjmath.com/blog/bjj-skin-infections-guide/https://bjjmath.com/blog/bjj-skin-infections-guide/Wed, 10 Jun 2026 00:00:00 GMTThe common BJJ skin infections — ringworm, staph, impetigo, herpes gladiatorum — how to prevent them, and the rule on when to stay off the mat.https://bjjmath.com/blog/ibjjf-age-divisions-explained/https://bjjmath.com/blog/ibjjf-age-divisions-explained/Wed, 10 Jun 2026 00:00:00 GMTHow IBJJF age divisions work: the competition-year rule, the Juvenile and Masters 1–7 brackets, and why you can compete down but not up.https://bjjmath.com/blog/bjj-gear-checklist-beginners/https://bjjmath.com/blog/bjj-gear-checklist-beginners/Wed, 10 Jun 2026 00:00:00 GMTWhat you need for your first BJJ class and what you don't: gi, rashguard, mouthguard, flip-flops, plus the hygiene basics for beginners.https://bjjmath.com/blog/how-long-to-bjj-black-belt/https://bjjmath.com/blog/how-long-to-bjj-black-belt/Wed, 10 Jun 2026 00:00:00 GMTHow long it really takes to earn a BJJ black belt, the IBJJF minimum time-in-grade rules, and what actually drives how fast you progress.https://bjjmath.com/blog/ibjjf-rules-explained/https://bjjmath.com/blog/ibjjf-rules-explained/Wed, 10 Jun 2026 00:00:00 GMTA plain-English guide to IBJJF rules: how points are scored, how weight and age divisions work, and the gi weigh-in detail that catches people out.https://bjjmath.com/blog/ibjjf-weight-classes-guide/https://bjjmath.com/blog/ibjjf-weight-classes-guide/Wed, 10 Jun 2026 00:00:00 GMTA clear guide to IBJJF adult gi weight classes, the gi-on weigh-in rule that trips people up, and how to find the division you actually belong in.https://bjjmath.com/blog/how-to-wash-a-bjj-gi/https://bjjmath.com/blog/how-to-wash-a-bjj-gi/Wed, 10 Jun 2026 00:00:00 GMTHow to wash a BJJ gi to keep it clean, prevent shrinkage and skin infections, and make it last: temperature, drying, smell, and mat-hygiene basics.https://bjjmath.com/blog/how-much-does-a-bjj-gi-weigh/https://bjjmath.com/blog/how-much-does-a-bjj-gi-weigh/Wed, 10 Jun 2026 00:00:00 GMTHow much a BJJ gi weighs by weave — pearl weave, double weave, lightweight comp gis — and why it matters for making weight at IBJJF weigh-ins.https://bjjmath.com/blog/best-bjj-gi-for-beginners/https://bjjmath.com/blog/best-bjj-gi-for-beginners/Wed, 10 Jun 2026 00:00:00 GMTHow to choose your first BJJ gi: what size to get, what to ignore, IBJJF-legal basics, and the qualities that matter for a beginner's kimono.https://bjjmath.com/blog/ibjjf-points-system-explained/https://bjjmath.com/blog/ibjjf-points-system-explained/Wed, 10 Jun 2026 00:00:00 GMTTakedown 2, pass 3, mount 4 — the IBJJF points system explained with the control rule, advantages, and how matches are decided when nobody taps.https://bjjmath.com/blog/how-ibjjf-weigh-ins-work/https://bjjmath.com/blog/how-ibjjf-weigh-ins-work/Wed, 10 Jun 2026 00:00:00 GMTHow IBJJF weigh-ins actually work: same-day timing, weighing in your gi, what happens if you miss weight, and how to avoid an avoidable disqualification.https://bjjmath.com/blog/first-bjj-competition-guide/https://bjjmath.com/blog/first-bjj-competition-guide/Wed, 10 Jun 2026 00:00:00 GMTEverything for your first BJJ tournament: picking a division, making weight, what to pack, how weigh-ins and brackets work, and what to expect on the day.https://bjjmath.com/blog/how-often-should-you-train-bjj/https://bjjmath.com/blog/how-often-should-you-train-bjj/Wed, 10 Jun 2026 00:00:00 GMTHow many times a week to train BJJ for steady progress without burning out or getting hurt, plus how to read your recovery and the signs of overtraining.https://bjjmath.com/blog/gi-vs-no-gi-which-to-start/https://bjjmath.com/blog/gi-vs-no-gi-which-to-start/Wed, 10 Jun 2026 00:00:00 GMTGi vs no-gi BJJ for beginners: the real differences in pace, grips, rules and gear, and an honest answer on which one to start with.https://bjjmath.com/blog/how-many-calories-for-bjj/https://bjjmath.com/blog/how-many-calories-for-bjj/Wed, 10 Jun 2026 00:00:00 GMTHow to estimate calories for BJJ using the Mifflin–St Jeor equation, set protein and macros for grappling, and fuel training without crash dieting.https://bjjmath.com/blog/returning-to-bjj-after-injury/https://bjjmath.com/blog/returning-to-bjj-after-injury/Wed, 10 Jun 2026 00:00:00 GMTHow to return to BJJ safely after injury or a layoff: easing back in, protecting the injured area, and when to stay off the mat.https://bjjmath.com/blog/bjj-belt-ranks-explained/https://bjjmath.com/blog/bjj-belt-ranks-explained/Wed, 10 Jun 2026 00:00:00 GMTThe BJJ belt order for adults and kids, what each rank means, the stripe system, and how IBJJF time-in-grade rules fit in — a plain guide for beginners.https://bjjmath.com/blog/best-bjj-gi-by-weight-class/https://bjjmath.com/blog/best-bjj-gi-by-weight-class/Wed, 10 Jun 2026 00:00:00 GMTA practical guide to BJJ gi sizing: how A-sizes map to height and weight, why brands differ, and how shrinkage changes the math.https://bjjmath.com/blog/bjj-gi-shrinkage-guide/https://bjjmath.com/blog/bjj-gi-shrinkage-guide/Wed, 10 Jun 2026 00:00:00 GMTHow BJJ gi shrinkage works: how to shrink a gi that's too big, and how to stop one shrinking when it already fits, by fabric and wash method.https://bjjmath.com/blog/safe-weight-cutting-for-bjj/https://bjjmath.com/blog/safe-weight-cutting-for-bjj/Wed, 10 Jun 2026 00:00:00 GMTHow to make weight for a BJJ tournament safely: sensible weekly loss rates, what to avoid, and when to just compete a division up instead.