KDP categories · Top KDP authors
Judo: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Judo, updated Nov 2, 2026: median price $6.99, median 7 reviews, average rating 4.4 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $3.62 – $9.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 7% |
| Books on the list | 99 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 7% of the parent category Martial Arts (102), one of the easier corners under it.
- Its review barrier is lower than in 85% of Kindle eBooks categories: the median best seller has only 7 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $3.62 to $9.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Judo best sellers
-
Zen Jiu Jitsu - White to Blue: From White to Confident Blue Belt
by Oliver Staark
- List rank#1
- Price$9.99
- Rating4.4
- Reviews974
-
Soviet Fighting Secrets : Russian Principles for Breath, Relaxation, Pressure, and Martial Mastery
by Paul Abramov
- List rank#2
- Price$3.99
- Reviews-
-
The Science of Survival : Brutal Self-Defense Secrets
by Paul Abramov
- List rank#3
- Price$3.99
- Rating5.0
- Reviews2
-
Principles and concepts for Martial Arts: Principles of Martial Arts for Judo, BJJ, Wrestling, Sambo and other grappling arts (Knowledge for Martial Arts)
by Sylvain Galibert
- List rank#4
- Price$9.99
- Rating4.5
- Reviews55
-
AMAA Legacy Book Global Edition: Celebrating Martial Artists Around the World Vol. II
by Jessie Bowen
- List rank#5
- Price$2.99
- Rating5.0
- Reviews2
-
The Changing Lives Series: AMAAF Special Tribute to Bill "Superfoot" Wallace (The Who's Who in the Martial Arts Greatest Book Series)
by Jessie Bowen
- List rank#6
- Price$2.99
- Rating4.9
- Reviews21
-
The Danaher Diaries: Over 100 of John Danaher's Musings on Jiu-Jitsu, Kaizen, Training, and Living
by Heroes of the Art
- List rank#7
- Price$4.99
- Rating4.7
- Reviews401
-
Judo: The Gentle Way (30 Minutes Martial Arts)
by 30 Minutes Martial Arts
- List rank#8
- Price$2.99
- Reviews-
-
Japanese Jujutsu: The History, Techniques and Legacy of the Martial Art behind the Martial Arts (30 Minutes Martial Arts)
by 30 Minutes Martial Arts
- List rank#9
- Price$2.99
- Rating2.5
- Reviews2
-
What is Brazilian Jiu-Jitsu Today? : Discussions about the Present and Future of the Art
by Robert Drysdale
- List rank#10
- Price$9.99
- Rating5.0
- Reviews8
FAQ
Is Judo a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 7 reviews and sells for $6.99.
How many reviews do you need to rank in Judo?
The median best seller has 7 reviews, and 91% of them have fewer than 100.
What do Judo best sellers cost?
The median price is $6.99; half of the best sellers are priced between $3.62 and $9.99.
Can new books break into Judo?
7% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.