Coaches

Jinga Gosschalk

'IN LOVE WITH CROSSFIT'

Hello, I’m Jinga Gosschalk, co-owner of CrossFit Flames XL, coach and personal trainer.

My vision is: Life is not about finding yourself, but creating yourself .

You can achieve anything in life as long as you have a goal, are disciplined and always strive for a positive attitude.

Sport has always been the most important part of my life. I grew up in Amsterdam, where I played basketball at a high level. When I was 18, I left for the United States, where I was able to study psychology with a sports scholarship and play college basketball at the highest level. After completing my bachelor of psychology, I took the step to become a professional basketball star. I enjoyed playing at the highest international level for thirteen years. I’ve been through everything from championships to European Olympic Games 3 × 3 basketball. I was also a personal trainer and gave fitness classes. I studied at NASM (National Academy of Sports Medicine) and ALO, among others.

Traveling the world as a professional basketball star was a dream job, but I found a new passion along this path and that was coaching in the fitness industry. Around 2011 I stopped playing professional basketball and went back to the Netherlands, where I started my own personal training company called Jingyourbodyinshape. At the same time, I discovered a new, great sport: CrossFit.

In 2011 I started training with Erwin van Beek at CrossFit Reebok 020 in Amsterdam. He’s taught me a lot about the sport of CrossFit over the years. Since I fell in love with CrossFit, I’ve taken quite a few courses, including CrossFit level 1, CrossFit level 2, gymnastics, weightlifting level 1 & level 2, strongman, rowing, running, kettlebell and Pregnancy & CrossFit.

On May 17, 2018, my biggest dream became reality: I became co-owner of this beautiful box, CrossFit Flames XL in Amsterdam.

Let’s make this the most beautiful box in Amsterdam, where everyone can find their own potential and fulfill their dreams!

Do you want a slim, muscular, strong, flexible and fit body?
Then sign up NOW for a FREE DAY PASS!

Randolf van Gelderen (29)

‘REACH YOUR GOAL BY WORKING HARD'

My name is Randolf van Gelderen. I am a Powerlifting and Strength trainer and Personal Trainer at CrossFit Flames XL.

My interest in the sports world started when I was 14 years old. My dream was to become the strongest man in the Netherlands. When I happened to see the sport of weightlifting on Eurosport, I was immediately sold. A few years later, I seriously started weightlifting.

My goal was to compete in international competitions and in 2015 the time had come: I was allowed to participate in the European Junior Championship and finished in tenth place. In total I did weightlifting for nine years, after which I started looking for another passion within the strength sports world. I took up powerlifting and I thought it was – and still do – a great sport. In July 2021 I started arm wrestling, which I now fully focus on.

In 2021 I graduated in Architecture from the Windesheim University of Applied Sciences in Almere, but my love for sports has ensured that I am now engaged in training full-time. My specialties are coaching in group classes and Personal Training, mainly for powerlifting, weightlifting and General Strength.

Giving training is my passion and I try to transfer my enthusiasm to the people I train. I enjoy coming to work and hope that I can help all people within my group lessons and Personal Training achieve their goals. My motto is: ‘You achieve your goals through hard work’

Ross Fraser

'HAVE FUN AND NEVER GIVE UP'

I played soccer and practiced fitness for many years before I discovered CrossFit in 2011. After not practicing sports for a while, a friend of mine told me that I should come and train at her new gym (now CrossFit Hofplein in Rotterdam). I was completely demolished after that lesson, but I’ve been a fan ever since!

After moving to Amsterdam, I started looking for a box where I felt at home. And that has become CrossFit Flames XL: a beautiful box with a great atmosphere. In 2017 I got my CrossFit Level 1 certificate. Initially I wanted to do the course to learn more about the philosophy behind this sport, but in the end, I thought it was great to coach people. And that’s what I’m doing now! I also would like to participate in a number of throwdowns, and I am now training hard to achieve that.

I also convinced my family to start training at CrossFit Flames XL and we enjoy doing that together. That’s the great thing about CrossFit, you can practice it together on different levels.

What I like about coaching is that I can contribute to achieving your health goals. I do this by teaching you good technique and stimulating your perseverance. And, very important, I want to make sure you have fun exercising and never give up!

Joy Bainathsah

'GROWING OLD (ER) HEALTHY'

Sport has always played an important role in my life. I have done squash, basketball and Wing Tjun (Chinese martial arts), among others. In 2016 I came into contact with CrossFit for the first time. On Netflix I came across the documentary The Fittest on Earth by accident. I was immediately sold, watched all CF documentaries and started looking for a CF box.

Soon you could find me in the box every day. I co-owned a software company, but started thinking about a radical career switch. In 2018 I obtained my CrossFit Trainer Level 1 and started coaching. In 2019 I took the final step and now I am active full-time in the CrossFit / Fitness domain. To increase my knowledge I have followed several other training and courses, including Aalo Fitness Trainer Level 1 & 2, Weightlifting, Dumbbell and Scaling.

My motto in life is ‘Growing old (er) healthy’. Of course there are several aspects in life that influence this. We cannot control some things ourselves, but there are two important things that we can influence: nutrition and exercise. If we have and keep an eye for these two things, we can increase the quality of our life and grow old (er) in a healthy way. Coaching and motivating the members to become increasingly fitter gives me a lot of satisfaction.

I am therefore very pleased that I can contribute to this at CrossFit Flames XL. I hope to see you soon in the box!

Cedric Blokland

‘GEWELDIGE COMMUNITY‘

‘Three years ago, I became a member of CrossFit Flames XL, after I had already taken a few CrossFit classes elsewhere. For me, CrossFit is the ultimate fitness challenge, which not only improves your health (both mental and physical), but also pushes your limits. It’s more than just a sport, it’s a great community where people of all ages inspire each other. My passion is to support this community and help people achieve their best (and fittest) version of themselves!’

Saskia Boonzaajer Flaes

‘CROSSFIT REMAINS CHALLENGING‘

‘I think sports are the best thing there is. From my childhood I have participated in various sports. Rowing, gymnastics, judo, fitness, horse riding, cycling, running, golf, there are few sports I haven’t tried. However, I quickly got bored of a sport because there is often little variety. Until I discovered CrossFit more than four years ago. CrossFit continues to offer challenge and variety, from my start as a beginner to now as a fanatic and competitive CrossFitter. There is always something new to learn and no training is the same. Since I started at CrossFit Flames XL, I feel completely at home here. The atmosphere, the people and the coaches are great. Last summer I achieved my CrossFit Trainer Level 1 and now I am proud to be part of the team. I love to convey my enthusiasm about the sport and CrossFit Flames XL to the members. I hope I can make sure you have as much fun in classes and sports as I do and that I can help you grow!”

Julia Evers

‘I LIKE TO TAKE ON CHALLENGES’

I’m a real sports enthusiast: I teach PE at Huygens College, give outdoor training and run the company Quality in Sport. ‘My favourite food consists of everything with a P. Think of protein pancakes, protein shakes and of course the protein cakes from Jur! #groeilekker My training goal is to become broader than Renz M. I know, that’s not easy, but I like to take on challenges. Do you want more of these kinds of tall tales and, above all, come out of your training even stronger? Then come and train with me (atmosphere guaranteed above 7.5!).’

Severin Fizikov

‘I’M EXCITED TO KEEP GROWING AS A COACH’

Sports have been a big part of my life ever since I was little. At age 6, I started gymnastics and stuck with it for 7 years. This early experience set me up perfectly for my CrossFit adventure, which kicked off in 2015.
In 2021, I got serious about CrossFit, falling in love with Olympic weightlifting – it’s my favorite part of the whole CrossFit package!
When I moved to Amsterdam in 2023, I found my fitness family at CrossFit Flames XL. The vibe, the people, and the coaches are all amazing.
I soon realized I enjoy helping others improve just as much as I love working out myself. Maybe it’s because my mom’s a sports teacher – it might run in the family!
To take my passion to the next level, I obtained my CrossFit Level 1 Training Certificate in 2024. I’m excited to keep growing as a coach and helping others achieve their fitness goals!