Feedback
Trusted by athletes, coaches, parents and clubs.
We are fortunate to train with thousands of athletes and coaches around the world every year. Here is some of their feedback.
Professional clubs
What the pros say
Bundesliga clubs, academies and football associations use the Tanner Speed concept in their daily training.
The concept of Tanner Speed is an essential part of the speed training at the Hannover 96 academy. With this the academy players are learning efficient movement patterns in a common, structured and game-oriented way.

Dominik SuslikHead of Health, Medicine & Athletics, Hannover 96 Academy

We at IFK Göteborg are convinced that speed is one of the most important skills that the players in our academy must develop. We are working with the Tanner Speed concept from U11 up to U19.

Jonas OlssonHead of IFK Gothenburg Academy
The golden age for learning coordination and speed is when kids are 10–11 years old. An excellent concept to improve these skills is Tanner Speed. I have been using the concept for many years now, for both academy players and professional players.

Günther StoxreiterAthletic Coach, Werder Bremen
Carsten is a highly experienced professional who always delivers top quality in his work. He can adapt to each player and group at all levels and ages, ensuring a fun and rewarding experience. I recommend Carsten to anyone seeking a speed coach.

Omar MalikIL Heming, Norway
We have used Tanner Speed on several occasions in our club. Carsten is very easy to communicate with, is organized when it comes to planning, and is diligent in fulfilling responsibilities. I would recommend more people to use Carsten and Tanner Speed to develop the competence of both coaches and players.
Kristian BrixNorway U19, Roa, Norway
In order to keep up in modern football, and especially in the Bundesliga, our players need "fast legs". The Tanner Speed frequency ladder is an elementary tool in our daily training.
Klaus LuisserAthletic Coach, Eintracht Frankfurt
We use Tanner Speed Training as an integrated part of our training for our youngest players. With the Golden 8 it is easy to correct the players during the movements, and the speed ladders are perfect for the players to develop different movements and combinations themselves.
Anders NorquistU+ Coach, Brøndby IF
Carsten Effertz and his Tanner Speed Academy are one of our most important partners in developing future top players. We clearly see progress in our members. If you want to become a faster and more effective football player, we highly recommend Tanner Speed.
Danny SandnesFounder, Fotballprogresjon Norge
The Gothenburg FA has worked with Tanner Speed for a number of years. We find the Golden 8 an excellent way to train running technique and improve our young players’ coordination.
Patrik GustafssonHead of Education, Gothenburg Football Association
We have had Tanner Speed at our annual coaches’ symposium and received only positive feedback. Carsten is a very good educator, and we can recommend the Tanner Speed concept.
Mikael LindgrenHead of Education, Västergötland Football Association
Coordination is the foundation for learning the many techniques that football demands, and acceleration is one of the most essential skills in today’s high-speed game. Tanner Speed Training is the perfect way to improve both.
Ludger BlaswichGoalkeeper Coach, Borussia Mönchengladbach
Tanner Speed focuses on one of the most essential skills of tomorrow’s elite football. This will become more and more crucial as the complexity and the speed of the game keep growing.
Daniel SchüttePerformance Diagnostics & Athletics, Dynamo Dresden
Video feedback
Hear it from the players
Academy and national team players from clubs like Juventus, Frankfurt and Nürnberg on training with Tanner Speed.
The Tanner Speed training has made me faster. Not only my feet, but also in taking decisions, which was one of my weaknesses. I am now a more complete football player and closer to achieving my dream!
Kenan TaciGAIS U19
Carsten has got a well-developed system that’s very professional. I am impressed and I will have more sessions with him.
August ErlingmarkIFK Göteborg, Swedish national team U21
Tanner Speed Training helps me to be first at the ball. It makes me faster and I win more runs and headers than my opponents.
Dominik KuhnSCR Altach
Training with Tanner Speed is both fun and challenging, but above all it is incredibly developing for me in my sport.
Samuel OhlssonIFK Göteborg U19
His personalised training made me faster, more agile and more dynamic, and I could feel the development within a very short time. Now I am quicker on the pitch and can carry out my actions even more powerfully.
Ali IbrahimajSV Sandhausen
Every coach has excellent knowledge to develop players to their best. Always fun to train with them!
Manfredas Ruzgis1. FC Köln U21, Lithuania national team
Acceleration and agility are keys in football. Tanner Speed is a fantastic training and helped me a lot to improve. Thanks to the Tanner Speed team!
Justin HuberDynamo Dresden U19
Today’s football is a high-tempo sport. Being fast and powerful is crucial, and the Tanner Speed techniques can help you achieve your max.
Mikael DyrestamKalmar FF
Carsten’s training is both developing and educational. You develop your sprinting technique at the same time as he teaches you about training and how your body works.
Johannes SigurdssonIFK Göteborg U17
Tanner Speed uses many different ways of improving your speed, which always makes me leave every session with a smile and confidence, knowing my development is on the right track.
Julia RosenquistSwedish tennis player
Athletes & parents
From Seattle to Copenhagen
We train with athletes from all over the globe, at our facilities in Gothenburg or online.
I learned of Tanner Speed Academy via YouTube and have been working with Carsten and his coaching staff on training my son (10-year-old football player) for 2 years now. The agility improvements we've seen are absolutely worth all the effort. If I could give Tanner Speed Academy 6 stars, I would.
Djordje MandaricSeattle, USA
Carsten really knows what he's doing. I have been there twice with my daughters already and plan on going back again. Not only does he know how to help players improve their speed, but he explains how to do it in a simple manner and makes it fun for them to do. I highly recommend.
Dan Padolsky
I originally found Carsten on YouTube and was very impressed with his insights and expertise. I signed up my eldest son for an online course which Carsten supported with video analysis and Teams calls. Excellent. On a trip to visit family near Gothenburg I booked my two sons in for in-person 1:1 sessions. The facilities are truly world class. Carsten's coaching was challenging but great fun. They didn't want to leave. We will be back!
DJ HammoLeeds, UK
My son recently did a sprint training session with Carsten at Tanner Speed Academy and it was a great experience. From the start, Carsten was super welcoming and clearly knows what he's doing. He worked closely with my son, gave really helpful feedback, and kept the session fun but focused. My son came away feeling more confident and said he actually learned a lot in just one session, especially about technique and form. You could tell Carsten really cared about helping him improve, and that made a big impression on both of us. Overall, a really positive experience. We're definitely planning to come back for more sessions. Highly recommend for any young athletes looking to get faster and sharpen their sprinting skills.
Sam Firth
Absolutely great running coach, recommended for all soccer players who want to develop their running technique and speed.
Erasmus MullaertSkåne, Sweden
Whenever we're in Göteborg, a session with Carsten is standard. He always provides positive, productive guidance, helping us recall anything we've neglected or forgotten since our previous visit.
Philip Erdie
Carsten is very professional. The training programme is adapted and tailored to the needs of the children. My children liked it very much. I strongly recommend Tanner Speed to all athletes looking to unlock their potential and go to the next level.
Ali AjanifBruxelles, Belgium
I learned how I can improve my speed, and new techniques that let me use my body the right way so I get fast on the pitch. I would love for you to organise a speed day several times a year.
H. Adel AkifSpeed Day, Norway
The programme was absolutely great, very inspiring, and they picked up lots of good tips! They would happily take part again.
ParentSpeed Day, Norway
They didn’t want to leave. We will be back!
My son had a great training with Carsten. He has learned a lot about how the body needs to move for increased speed and he looks forward to work hard on the program he received and see the results when meeting up again in 6 weeks time. Highly recommend this session to others.
Tze Boss
Very good and professional training. I trained with Carsten for three years and see a big difference in my running stride, but also in my coordination, speed and reaction. Highly recommended.
Filippa HopkinsAlingsås FC
An incredible experience with Tanner Academy we had for a week. Professional approach and knowledge of the team, support and improvement at the stages of getting better, positive and kind attitude... it was amazing. We look forward to the next sessions soon.
Rukiye Balkan
Tanner Speed helps me with my running technique and speed. This is important as the game is becoming faster and faster, and on elite level it is essential to be able to sprint at high speed and for longer periods.
Casandra LüthckeBrøndby IF, Denmark
My daughter is doing the online mentor program. Excellent tuition, drills and feedback from Carsten. If the player is willing to put in the work, they will see great results with this program. I highly recommend Tanner Speed Academy.
Dave ApplebyOnline mentor program
Thank you for the really good running and soccer training. The coaching couldn't have been better and we received many tips for improvement as well as a good program that we could work on ourselves.
Rune KølleCopenhagen, Denmark
Very good facilities and a very good training program. Carsten is competent.
Alexander BjerkeOslo, Norway
Fun and educational. At training today she used some of what she learned yesterday and noticed herself that she ran faster. Thank you so much!
Tiana’s parentSpeed Day, Norway
Sverre was super happy after the session yesterday! He would love to do this again.
Sverre’s parentSpeed Day, Norway
Our daughter really enjoyed the speed day. The exercises had the right level of difficulty and felt like good challenges.
ParentSpeed Day, Norway
Your turn
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Train with Tanner Speed in Gothenburg or follow our online courses from anywhere in the world.