KDP categories · Top KDP authors
Triathlon (Individual Sports, Books): Amazon KDP category data
Amazon Books Best Sellers data for Triathlon (Individual Sports, Books), updated Nov 2, 2026: median price $16.99, median 92 reviews, average rating 4.6 and a KDPTop opportunity score of 33/100 (highly competitive).
| Price range (middle 50%) | $12.99 – $22.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 9% of the parent category Individual Sports (1,036), one of the easier corners under it.
- The same niche in Kindle eBooks scores 17, 15 points lower than here.
Top 10 Triathlon best sellers
-
The Norwegian Method Applied: Threshold Training and Intensity Control for Faster, More Durable Running at Every Level
by Marius Bakken MD
- List rank#1
- Price$27.99
- Rating4.7
- Reviews174
-
Finding Ultra, Revised and Updated Edition: Rejecting Middle Age, Becoming One of the World's Fittest Men, and Discovering Myself
by Rich Roll
- List rank#2
- Price$17.69
- Rating4.5
- Reviews6,821
-
Science of Running: Analyze your Technique, Prevent Injury, Revolutionize your Training (The Science of Fitness)
by Chris Napier
- List rank#3
- Price$12.89
- Rating4.6
- Reviews1,266
-
Mind Gym: An Athlete's Guide to Inner Excellence
by Gary Mack
- List rank#4
- Price$13.69
- Rating4.6
- Reviews2,439
-
Fast After 50: How to Race Strong for the Rest of Your Life, 2nd Edition
by Joe Friel
- List rank#5
- Price$22.99
- Rating4.3
- Reviews29
-
The Brave Athlete: Calm the F*ck Down and Rise to the Occasion
by Simon Marshall PhD
- List rank#6
- Price$17.88
- Rating4.5
- Reviews631
-
The Triathlete's Training Bible: The World's Most Comprehensive Training Guide, 5th Edition
by Joe Friel
- List rank#7
- Price$22.99
- Rating4.7
- Reviews135
-
Running Rewired: Reinvent Your Run for Stability, Strength, and Speed, 2nd Edition
by Jay Dicharry
- List rank#8
- Price$21.87
- Rating4.6
- Reviews896
-
The Triathlete's Training Bible: The World's Most Comprehensive Training Guide, 4th Ed.
by Joe Friel
- List rank#9
- Price$21.96
- Rating4.6
- Reviews1,118
-
Runner's World How to Make Yourself Poop: And 999 Other Tips All Runners Should Know
by Meghan Kita
- List rank#10
- Price$15.99
- Rating4.6
- Reviews1,057
Same niche in Kindle eBooks: Triathlon
FAQ
Is Triathlon a good niche for Amazon KDP?
Its KDPTop opportunity score is 33/100, which makes it highly competitive. The median best seller has 92 reviews and sells for $16.99.
How many reviews do you need to rank in Triathlon?
The median best seller has 92 reviews, and 52% of them have fewer than 100.
What do Triathlon best sellers cost?
The median price is $16.99; half of the best sellers are priced between $12.99 and $22.99.
Can new books break into Triathlon?
12% 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.