How does an exercise test help you run faster?
How does an exercise test help you run faster? When translated into a training program, a test helps you to train smarter and better.
3in1Sports Bootcamp
Join the 3in1Sports Bootcamp in Utrecht and work on your physical and mental fitness!
Personal Coaching
Personal Coaching means one-to-one guidance by Bert Flier so you have access to all knowledge of 3in1Sports.
Exercise test
During an exercise test we determine your metabolic profile and assess your trainability and training zones.
3in1Sports helps you personally, as a team and as a company to make your dreams in sports come true.
The mission of 3in1Sports is to let athletes shine, push boundaries and experience adventures.
More information?
Want to know if 3in1Sports is for you? Want to make an appointment for an intake or personal training program? Contact us, we love to hear from you!













TrainingPeaks
Our training plans are made available online through TrainingPeaks. TrainingPeaks also functions as your training log so that your coach can see how your training is progressing and make timely adjustments.
Training camps
During our training camps we take care of your every need. Our camps are led by experience trainers and stage the most beautiful locations. During a training camp you don’t need to worry about anything other than eating, training and resting.
Group sessions
Once a month 3in1Sports organises a group training, so that we can also see you in the water, on the bike or on foot. These group sessions are organised at central locations and are free for our athletes.