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Triathlon (Individual Sports, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Triathlon (Individual Sports, Kindle eBooks), updated Nov 2, 2026: median price $9.99, median 130 reviews, average rating 4.5 and a KDPTop opportunity score of 17/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $11.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 11% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- The same niche in Books scores 33, 15 points higher than here; worth checking both.
- Its median reviews are 42% of the parent category Individual Sports (307), one of the easier corners under it.
- Prices spread wide: the middle half runs from $3.99 to $11.99, so budget editions and premium or boxed sets sell side by side.
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
- List rank#1
- Price$12.99
- Rating4.7
- Reviews174
-
Hansons Half-Marathon Method: Run Your Best Half-Marathon the Hansons Way
by Humphrey Luke
- List rank#2
- Price$2.99
- Rating4.6
- Reviews378
-
Running Rewired: Reinvent Your Run for Stability, Strength, and Speed
by Jay Dicharry
- List rank#3
- Price$2.99
- Rating4.6
- Reviews896
-
How Bad Do You Want It?: Mastering the Psychology of Mind over Muscle
- List rank#4
- Price$10.99
- Rating4.4
- Reviews2,422
-
JIM’S WEIGHT TRAINING & BODYBUILDING WORKOUT PLAN: Build muscle and strength, burn fat & tone up with a full year of progressive weight training workouts (Weight training & resistance workouts)
- List rank#5
- Price$3.99
- Rating4.3
- Reviews445
-
The Well-Built Triathlete: Turning Potential into Performance
by Matt Dixon
- List rank#6
- Price$11.99
- Rating4.5
- Reviews328
-
Finding Your Finish Line: Lessons on Discovering Hope, Heart, and Yourself in Life's Toughest Miles
by Mike Reilly
- List rank#7
- Price$2.99
- Rating5.0
- Reviews63
-
Quick Strength for Runners: 8 Weeks to a Better Runner's Body
by Jeff Horowitz
- List rank#8
- Price$3.99
- Rating4.5
- Reviews328
-
The Triathlete's Training Bible: The World's Most Comprehensive Training Guide, 4th Ed.
by Joe Friel
- List rank#9
- Price$2.99
- Rating4.6
- Reviews1,118
-
Mind Gym: An Athlete's Guide to Inner Excellence
by Gary Mack
- List rank#10
- Price$9.12
- Rating4.6
- Reviews2,439
Same niche in Books: Triathlon
FAQ
Is Triathlon a good niche for Amazon KDP?
Its KDPTop opportunity score is 17/100, which makes it highly competitive. The median best seller has 130 reviews and sells for $9.99.
How many reviews do you need to rank in Triathlon?
The median best seller has 130 reviews, and 45% of them have fewer than 100.
What do Triathlon best sellers cost?
The median price is $9.99; half of the best sellers are priced between $3.99 and $11.99.
Can new books break into Triathlon?
11% 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.