Does a blue or white judogi affect winning?
Read the findings—and what the studies can and cannot tell us.
Start with a question
Explore the research, reflect on practice or choose a useful tool.
How can a difficult practice reveal your next focus?
Use examples of grips and techniques to compare notes across sessions.
Which judo app fits your needs?
Compare tools for looking up techniques, recording practice and reviewing video.
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History & values
Explore where judo's ideas come from and how different organisations explain them.
Judo Moral Code: Eight Values, Ten Values and Kano's Principles
Trace the judo moral code to its sources. Compare the French eight values, Germany's ten values and Kano's principles without confusing ideals with proven effects.
Research & evidence
Read research questions with their study conditions, source trails and limits.
Blue or white judogi: does the colour affect who wins?
Read the evidence behind blue and white judogi: 45,874 contests, allocation bias, odds ratios and the limits of a colour comparison.
Learning & practice
Think through judo situations, partner work and reflection on practice.
Judo Training Methods: How to Practice With a Clear Purpose
Build a judo practice around ukemi, movement, uchikomi, nage-komi, randori, ne-waza, and review instead of doing random drills.
How to Get Better at Judo Without Adding More Random Training
Review your judo progress through your goals, practice conditions and the partner’s responses. Use a practice note to separate observations from possible explanations.
Judo Practice Menu: A Simple Session Structure for Real Progress
Review a judo session’s purpose, assigned exercises and actual practice. Use examples and a worksheet to connect observations with your next coaching question.
Judo Uchikomi Drills: Make Repetition Transfer to Randori
Review uchi-komi with the intended entry, starting distance, uke’s role and actual feedback. Use a worksheet to discuss what to observe next.
Judo Randori Tips: Practice Free Sparring Without Wasting Rounds
Give each randori round a job: win a grip, test an entry, recover posture, connect to ne-waza, or review one mistake.
Judo Grip Fighting Drills: Build Kumikata You Can Actually Use
Review kumikata through contact, grip and partner response. Use the waza-map worksheet to separate observations from questions about the next action.
Judo Ne-Waza Drills: Build Groundwork That Scores in Competition
Review ne-waza starting positions, partner roles and resets. Use a practice worksheet to record what happened and prepare a specific coaching question.
Judo Throwing Technique Basics: Kuzushi, Tsukuri, and Kake in Practice
Use kuzushi, tsukuri and kake to review a familiar judo throw. Compare visible grips and movement, then prepare a coaching question with the worksheet.
Judo Footwork and Movement: Make Ashi-Sabaki Lead to Attacks
Use footwork to create angle, distance, timing, and direction before you repeat a throw entry.
Common Judo Beginner Mistakes and How to Fix Them in Practice
Turn beginner judo confusion into a clear coaching question. Review partner roles, instructions and actual feedback with examples and a practice worksheet.
Weekly Judo Training Plan: 2-, 3-, and 4-Day Examples
Build a realistic weekly judo training plan with 2-, 3-, and 4-dojo-session examples for technique, randori, ne-waza, review, and recovery.
Judo Tournament Preparation: Match Week Checklist
Prepare for a judo tournament with a match-week checklist for weight, video review, opponent analysis, tactics, equipment, and recovery.
Judo Kumite Strategy: Build a First-Grip Plan
Improve judo kumite strategy by planning first grips, opponent reactions, attack timing, combinations, and video review for randori and shiai.
Ne-Waza Training Plan for Competition Judo
Create a ne-waza training plan for pins, turnovers, submissions, transitions, situational rounds, and competition-ready groundwork.
Judo Weight Cut Tracking Without Losing Training Quality
Track weight trends, meals, hydration, recovery, and practice quality before judo tournaments while keeping weight management conservative and supervised.
Judo Opponent Analysis: What to Watch Before a Match
Use judo opponent analysis to study stance, grips, favorite throws, pace, penalties, ne-waza habits, and the two or three decisions that matter most.
Judo Tournament Checklist: What to Prepare Before Shiai
A practical judo tournament checklist for weigh-in, gear, first grip, opponent notes, warm-up, recovery, and post-match review.
How to Analyze Judo Video and Turn It Into Better Practice
A step-by-step judo video analysis guide for grips, posture, entries, scoring moments, ne-waza transitions, and the next drill.
Reference & resources
Find terminology, technique references, worksheets and original sources.
Judo belt order: why charts differ and which system to follow
Understand judo belt order, kyu and dan, children's schemes and club transfers without confusing one federation's chart with a worldwide rule.
Judo Research Library: Papers and Official Sources
Explore eight selected judo papers and official sources, with original titles, source languages, reading scope and limits beside every entry.
Kodokan 100 techniques
Browse the official Kodokan technique names by nage-waza and katame-waza classification.
Kodokan 100 techniquesJudo glossary for beginners
Search essential dojo, movement, practice, and competition terms. Every entry shows the Japanese writing, romanization, and a concise meaning.
Judo glossary for beginnersJudo Match Video Review Checklist
Copy or print a judo match-video review sheet. Separate visible actions, hidden details and questions for your coach, one exchange at a time.
Open templateRandori Video Review Template
Pick one successful attack, one failed attack, and one defended exchange, then turn them into drills.
Open templateJudo Practice Log Template
Copy or print a judo practice log. Keep the assigned task, observations, unanswered questions and feedback together without inventing the next drill.
Open templateJudo Tournament Day Checklist
Copy or print a judo tournament-day checklist. Keep official sources, confirmed details, packing status and unanswered questions together.
Open templateJudo Waza Map Worksheet
Copy or print a judo waza-map worksheet. Record a familiar technique, observed responses and coach questions; leave unknown details and unagreed follow-ups blank.
Open templateApp guides
Explore digital tools for reviewing and organising practice when they fit your needs.
Recommended judo apps: choose a tool for the job you need
Choose between training reflection, technique reference, competition viewing and coach-led analysis. A disclosed guide from Judo AI, with sources and practical checks.
Judo Technique Tracker
Choose a judo technique tracker around techniques taught, starting grips and observed partner responses. Try a free waza-map worksheet first.
Open workflowBest Judo Video Analysis App for Randori and Shiai Review
Choose a judo video-review tool around visible actions, timestamps and coach questions. Try the match-review worksheet and check features and privacy.
Open workflowJudo Training App
Explore a judo training app around your real dojo schedule, agreed practice focus and session notes. Try a free worksheet before choosing digital tools.
Open workflowJudo Practice Log App
Choose a judo practice log app for notes you can revisit: assigned tasks, observations and coach feedback. Start with the free practice-log worksheet.
Open workflowJudo Tournament Preparation App
Compare tournament-note tools for confirmed event details, packing status and agreed plans. Start with a printable judo tournament-day checklist.
Open workflowAI Judo Coach: Turn Practice Into a Smarter Plan
Learn how an AI judo coach helps judoka review logs, video, weak points, and coach notes so each dojo session becomes a focused training plan.
VideoJudo Video Analysis App Workflow for Better Technique
Review judo video with context, visible observations and coach questions. Use a printable checklist to compare exchanges without guessing hidden actions.
ReviewJudo Practice Log: What to Track After Every Session
Keep useful judo practice notes: separate assigned tasks, attempts, observations and feedback, then revisit comparable situations without inventing the next drill.
Judo Waza Map: Build a Connected Judo Game
Use a judo waza map to connect grips, entries, throws, combinations, counters, and ne-waza transitions into a practical game plan.
Sources & editorial approach
A judo publication by Judo AI. We link factual claims to their original sources and distinguish research findings from interpretation. Study populations, dates and limitations matter.
Translations are prepared with AI assistance. They are not certified by a federation or independently reviewed by native-speaking judo experts. Articles do not replace qualified instruction.