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Christoph Friedrich: Amazon KDP author data
Christoph Friedrich has 56 books on Amazon, 34 of them on a best-seller list in the last 30 days (best rank #6), mostly in Racket Sports, Tennis, Coaching.
56Books on Amazon
34Listed in 30 days
4.0Average rating
| Median price | $9.99 |
|---|---|
| Price range (middle 50%) | $2.99 – $14.99 |
| Median reviews | 2 |
| Total reviews | 51 |
| New books (30 days) | 25 |
| Breakout books (30 days) | 13 |
What stands out
- 61% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $9.99, 27% below the median of their main category, Racket Sports.
- 25 new books in the last 30 days, 13 of them broke into a Best Sellers list.
Christoph Friedrich's best-ranked books
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Pickleball Strategy: How to Read the Court, Choose the Right Shot, and Win More Points
by Christoph Friedrich
- Price$14.99
- Rating5.0
- Reviews1
-
Pickleball Doubles: Winning Tactics, Smart Positioning, and Better Shot Selection for Doubles Play
by Christoph Friedrich
- Price$14.99
- Reviews-
-
Pickleball for Beginners: Learn the Rules, Master the Basics, and Start Winning Smarter
by Christoph Friedrich
- Price$14.99
- Rating4.5
- Reviews2
-
Tennis Strokes: How Each Shot Really Works, from Forehand and Backhand to Serve and Volley, and How to Fix Your Own Technique (The Tennis Coaching Library Book 2)
by Christoph Friedrich
- Price$2.99
- Reviews-
-
Soccer Drills for Youth Coaches: 999 Practice-Ready Drills, Training Sessions, and Possession Games for Coaching Kids' Soccer Teams Ages 6 to 18
by Christoph Friedrich
- Price$2.99
- Reviews-
-
Tennis Fitness: Footwork, Strength and Injury Prevention Training for Adult Club Players Who Want to Move Faster and Keep Playing for Years (The Tennis Coaching Library Book 6)
by Christoph Friedrich
- Price$2.99
- Reviews-
- Published2026-10
-
Pickleball Strategy: How to Read the Court, Choose the Right Shot, and Win More Points (The Complete Pickleball Series)
by Christoph Friedrich
- Price$2.99
- Rating5.0
- Reviews1
-
Complete Tennis: In-Depth Coaching on Strokes, Singles and Doubles Strategy, Fitness, and the Mental Game for Club and League Players Rated 3.0 to 4.5 (The Tennis Coaching Library Book 1)
by Christoph Friedrich
- Price$2.99
- Reviews-
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Tennis Mindset: Master the Mental Game, Handle Nerves and Pressure, Stop Choking on Big Points, and Play With Confidence in Every Match (The Tennis Coaching Library Book 5)
by Christoph Friedrich
- Price$2.99
- Reviews-
- Published2026-10
-
Pickleball Doubles: Winning Tactics, Smart Positioning, and Better Shot Selection for Doubles Play (The Complete Pickleball Series)
by Christoph Friedrich
- Price$2.99
- Reviews-
Main categories
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.