EveryDojo

Sources for judo

Every number in the text, like 3, points here. The pages are written in our own words from these sources. Where sources disagree, the pages say so and show each version. Rules and grades are each body's own, with the date we read them, and change over time.

How these pages were made

Researched and drafted with computer help, checked against the sources below, and read by a karate instructor. Pictures are drawn, with computer help, under our direction, and none shows a real child. Recorded chapters and words are read by a computer voice; a word not yet recorded uses your device's own voice. If you spot a mistake, email hello@everydojo.com.

  1. 1.Judo · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0); its scoring and shido sections are out of date against the 2026 IJF rules
  2. 2.Kanō Jigorō · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  3. 5.Tenjin Shin'yō-ryū · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  4. 6.Kitō-ryū · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  5. 7.Budokwai · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  6. 8.Gunji Koizumi · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  7. 9.Yukio Tani · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  8. 10.Edward William Barton-Wright · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  9. 12.Judo in the United Kingdom · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0); used with care, as it contradicts itself on the medal total and is out of date on Paralympic golds
  10. 13.British Judo Association · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  11. 14.British Judo Council · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  12. 15.Masutaro Otani · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  13. 16.Kenshiro Abbe · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  14. 17.Mikinosuke Kawaishi · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  15. 18.Sarah Mayer · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  16. 20.Charles Palmer (judoka) · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  17. 21.Rank in judo · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  18. 25.Judogi · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  19. 26.Kata articles: Nage-no-kata, Katame-no-kata, Kime-no-kata, Ju-no-kata, Kodokan Goshin Jutsu, Itsutsu-no-kata, Koshiki-no-kata · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  20. 28.Scoring articles: Ippon, Waza-ari, Shido · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0); history of scores only
  21. 29.Kosen judo · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  22. 30.Judo at the Summer Olympics · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  23. 31.Judo at the 2024 Summer Olympics (and the 1964, 1988, 1992 and 2020 pages) · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  24. 32.Para judo; Judo at the Summer Paralympics; Judo at the 2024 Summer Paralympics · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  25. 33.International Judo Federation · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  26. 34.European Judo Union · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  27. 35.World Judo Championships · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  28. 36.British judoka: Neil Adams, Kate Howey, Brian Jacks, Gemma Gibbons, Karina Bryant, Chris Skelley · Wikipedia contributors · Facts only, own words (text CC BY-SA 4.0)
  29. 60.IJF Sport and Organisation Rules, version of 14 August 2026 · International Judo Federation · Facts only, own words; the link always opens the newest version
  30. 61.IJF news: Judo presents the new rules (13 December 2024) · International Judo Federation · Facts only, own words
  31. 62.IJF news: Rules confirmed ahead of a new season (6 January 2026) · International Judo Federation · Facts only, own words
  32. 64.IJF: History · International Judo Federation · Facts only, own words
  33. 65.Kodokan: About Kodokan · Kodokan Judo Institute · Facts only, own words
  34. 66.Kodokan: History of Kodokan Judo; The purpose of Judo; Words of Kano Shihan · Kodokan Judo Institute · Facts only, own words; short quotes credited
  35. 67.Kodokan: Names of Judo Techniques, and Nage-waza Digest · Kodokan Judo Institute · Facts only, own words; technique names are facts, the Kodokan's definitions are not copied
  36. 68.Kodokan Kata textbooks (English) · Kodokan Judo Institute · Facts only, own words
  37. 69.Kodokan: Dan Grading · Kodokan Judo Institute · Facts only, own words
  38. 70.IBSA Judo overview · International Blind Sports Federation · Facts only, own words
  39. 71.IJF video: Updated Rules · International Judo Federation · Link only
  40. 80.British Judo: Grading · British Judo Association · Facts only, own words
  41. 81.British Judo Kyu Grade Promotion Syllabus (January 2025) · British Judo Association · Facts only, own words; summarised, not reproduced
  42. 82.British Judo Mon Grade Promotion Syllabus (January 2025) · British Judo Association · Facts only, own words; summarised, not reproduced
  43. 83.British Judo: Sho Grade Scheme · British Judo Association · Facts only, own words
  44. 84.British Judo: Mon Grade Scheme and Kyu Grade Scheme pages · British Judo Association · Facts only, own words
  45. 85.British Judo: Dan Grade Scheme · British Judo Association · Facts only, own words
  46. 86.British Judo Dan Grade Promotion Syllabus (1 January 2026) · British Judo Association · Facts only, own words
  47. 87.British Judo Dan Grading Requirements (December 2025) · British Judo Association · Facts only, own words
  48. 88.British Judo Kata Requirements for Dan Gradings (November 2025) · British Judo Association · Facts only, own words
  49. 89.British Judo Gradings Frequently Asked Questions (2016) · British Judo Association · Facts only, own words; dated 2016, used only where still consistent with the 2025 syllabi
  50. 90.British Judo: Judo Moral Code · British Judo Association · Facts only, own words
  51. 91.British Judo: New to Judo · British Judo Association · Facts only, own words
  52. 92.British Judo: Join the BJA (membership prices, read 25 October 2026) · British Judo Association · Facts only, own words; prices change
  53. 93.British Judo: Insurance · British Judo Association · Facts only, own words
  54. 94.British Judo: Free taster sessions · British Judo Association · Facts only, own words
  55. 95.British Judo: Adaptive Judo · British Judo Association · Facts only, own words
  56. 96.British Judo: Kata · British Judo Association · Facts only, own words; short quote credited
  57. 97.British Judo Events Tournament Handbook (October 2023) · British Judo Association · Facts only, own words
  58. 99.British Judo Concussion and Strangulation Advice Sheet (October 2025) · British Judo Association · Facts only, own words
  59. 100.British Judo: Celebrating 100 Years of The Budokwai and British Judo (26 January 2018) · British Judo Association (article by John Goodbody) · Facts only, own words
  60. 101.British Judo: Double Medal Delight for GB Judo at the Paralympic Games (7 September 2024) · British Judo Association · Facts only, own words
  61. 102.British Judo: Find a club; Finding Your Feet; Governance and structure · British Judo Association · Facts only, own words
  62. 110.JudoScotland: Grading pages · JudoScotland · Facts only, own words
  63. 111.JudoScotland: Kai Grade Syllabus and Kai to Mon conversion · JudoScotland · Facts only, own words
  64. 112.JudoScotland: Membership categories and benefits; Why Judo? · JudoScotland · Facts only, own words; prices change
  65. 113.Welsh Judo Association and Northern Ireland Judo Federation · Welsh Judo Association; Northern Ireland Judo Federation · Facts only, own words
  66. 120.British Judo Council home page, 25 October 2026 (offline for maintenance) · British Judo Council · Fact only
  67. 121.British Judo Council: About Us, About the BJC, home page and Affiliation (saved 8 October 2026) · British Judo Council · Facts only, own words; short quotes credited
  68. 123.BJC Syllabus 3.0 (February 2014) and Grading Cards (June 2015), via the Internet Archive · British Judo Council · Facts only, own words; dated 2014 and 2015
  69. 130.Amateur Judo Association: home, history and downloads pages · Amateur Judo Association · Facts only, own words
  70. 131.AJA Grading Syllabus (uploaded January 2018) · Amateur Judo Association · Facts only, own words; dated, uses pre 2009 scoring
  71. 132.AJA Information Booklet (edition reference 151117) · Amateur Judo Association · Facts only, own words
  72. 135.Judo for All (UK), as recorded 8 October 2026 · Judo for All (UK) · Fact only
  73. 136.The Budokwai home page · The Budokwai · Facts only, own words
  74. 140.NSPCC: 5 questions to ask your child's sports club · NSPCC Child Protection in Sport Unit · Facts only, own words; link
  75. 141.British Judo: Safe Sport · British Judo Association · Link
  76. 150.Express & Star: reports on Team GB judo at Paris 2024 · Express & Star · Fact only, cross checked against S31 (seen in search results, not opened)
  77. 160.EveryDojo governing bodies research, 8 October 2026 · EveryDojo · Internal research, read from each body's own site and the sports councils' lists on that date
  78. 170.Commons: Jigoro Kano and Kyuzo Mifune · Wikimedia Commons; published by Baseball Magazine Sha · Fact from the file description (date not stated); image public domain (PD-Japan-oldphoto)
  79. 171.Commons: Jigoro Kano and Sumiyuki Kotani (1933) · Wikimedia Commons; Kodansha Ltd. · Fact from the file description; image public domain (PD-Japan-oldphoto)
  80. 172.Commons: Kodokan in 1937 · Wikimedia Commons; Kodansha · Fact from the file description; image public domain (PD-Japan-oldphoto)
  81. 173.Commons: Kano's Kito-ryu certificate (October 1883) · Wikimedia Commons; Kodokan (ed.), Kano Jigoro Taikei vol. 12 · Fact from the file description; image public domain (PD-Japan-oldphoto)
  82. 174.嘉納治五郎 (Kano Jigoro), Japanese Wikipedia · Wikipedia contributors (Japanese) · Facts only: born 10 December 1860, which is the 28th day of the 10th month of Man'en 1 in the old Japanese calendar; head of the Tokyo Higher Normal School from September 1893 to 1920, in three terms, more than 23 years
  83. 175.嘉納治五郎 (Kano Jigoro), Kotobank, Japanese reference dictionaries · Kotobank (Asahi Shimbun; entries from Japanese biographical dictionaries) · Facts only: born on the 28th day of the 10th month of Man'en 1 in the old calendar; head of the Tokyo Higher Normal School for 24 years with two breaks

Photographs