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Martial Arts (Children's eBooks › Sports & Outdoors, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Martial Arts (Children's eBooks › Sports & Outdoors, Kindle eBooks), updated Nov 3, 2026: median price $4.99, median 79 reviews, average rating 4.6 and a KDPTop opportunity score of 16/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $7.88 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 2% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Only 2% of its best sellers are under 90 days old, fewer than in 93% of Kindle eBooks categories: established titles hold the list.
- Its median reviews are 24% of the parent category Sports & Outdoors (324), one of the easier corners under it.
- At $4.99 its median price is below 91% of Kindle eBooks categories, so it is a volume game.
Top 10 Martial Arts best sellers
-
Diary of a 6th Grade Ninja (a hilarious adventure for children ages 9-12)
- List rank#1
- Price$6.99
- Rating4.6
- Reviews10,166
-
Naughty Ninja Takes a Bath
by Todd Tarpley
- List rank#2
- Price$4.99
- Rating4.5
- Reviews3,572
-
Pranks and Attacks!: Book 1 (Tao, the Little Samurai)
by Laurent Richard
- List rank#3
- Price$8.69
- Rating4.5
- Reviews37
-
Diary of a 6th Grade Ninja 3: Rise of the Red Ninjas (a chapter book for ages 8-12): From the Creator of Kid Youtuber
- List rank#4
- Price$6.99
- Rating4.7
- Reviews2,920
-
Clowns and Dragons!: Book 3 (Tao, the Little Samurai)
by Laurent Richard
- List rank#5
- Price$8.69
- Rating4.8
- Reviews13
-
Ninjas and Knock Outs!: Book 2 (Tao, the Little Samurai)
by Laurent Richard
- List rank#6
- Price$6.99
- Rating4.5
- Reviews20
-
Wild Animals!: Book 5 (Tao, the Little Samurai)
by Laurent Richard
- List rank#7
- Price$6.29
- Rating4.8
- Reviews16
-
Kung Fu Panda: The Movie Storybook
by zuuka
- List rank#8
- Price$3.99
- Rating4.3
- Reviews46
-
Diary of Nate The Minecraft Ninja: (An Unofficial Minecraft Book) (Diary of Nate The Minecraft Ninja (Unofficial Minecraft Diary and Action Series) Book 1)
- List rank#9
- Price$3.99
- Rating4.8
- Reviews387
-
Stuck Inside Minecraft: Book 15
- List rank#10
- Price$3.99
- Rating4.6
- Reviews209
Same niche in Books: Martial Arts
FAQ
Is Martial Arts a good niche for Amazon KDP?
Its KDPTop opportunity score is 16/100, which makes it highly competitive. The median best seller has 79 reviews and sells for $4.99.
How many reviews do you need to rank in Martial Arts?
The median best seller has 79 reviews, and 56% of them have fewer than 100.
What do Martial Arts best sellers cost?
The median price is $4.99; half of the best sellers are priced between $3.99 and $7.88.
Can new books break into Martial Arts?
2% 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.