• (905) 889-2000
  • 93 Green Lane Markham, ON L3T 6K6

Our Team

About Us

The team we have assembled bring a depth of knowledge and a balance of diverse experience in the health and fitness industry.

We share a passion for the sport of CrossFit, for building relationships, and for helping our clients see real and lasting results. Each of our individual strengths compliments the others. This creates a dynamic and synergistic team.

Justin Tamane – Head Coach, Partner

  • CrossFit Level 2 Instructor
  • CrossFit Olympic Lifting
  • CrossFit Aerobic Capacity
  • CrossFit Judges Course
  • 2015 CrossFit East Regionals Competitor - Individual
  • 2017 CrossFit East Regionals Competitor - Team
  • Strongfit Seminar Attendee
  • CPR A + AED Training 
  • Honors B.A. of Physical Education, Brock University
  • Associated Degree of Liberal Arts, Erie Community College
  • Kinesiotape Application Experience
  • Kinesiologist/Exercise Rehabilitation Specialist at Aurora Physiotherapy and Sports Injuries Clinic
  • Coaches of Canada Member
  • NCCP Baseball Coach

Justin is both a decorated athlete and a talented coach. He has an impressive track record as a varsity baseball player and is making a name for himself in the CrossFit community, both as an athlete and coach.

Justin first stumbled upon the sport of CrossFit during his time on the varsity baseball team at Brock University. His teammates were taking their fitness to another level, implementing some of the baseline CrossFit workouts into their training regime. After a lifetime of training in traditional “globo gyms” and eating whatever he wanted, Justin found CrossFit to be extremely challenging. His initial experience was a “reality check” – at 5’8” and 195 lbs, he believed he was strong and fit. Once he immersed himself in the CrossFit community and began training consistently, not only was he able to transform his body (dropping 25 lbs and a significant amount of body fat), but he also improved his lifestyle to facilitate his growth as an athlete.

Justin is a talented coach who is sought after by multiple CrossFit gyms and is one of Ontario’s top CrossFit athletes.  His passion is to inspire people to achieve their goals and to create life-changing personal achievements of their own.

Favourite Benchmark Workout: Fran  
Pump Up Jam: “Bricks and Mortar” - Cancer Bats


Rob Sinclair – Co-Founder

  • CrossFit Level 2 Instructor
  • CPR A + AED Training 
  • Queen’s University – B.Sc. in Biology, with a minor in Exercise Science
  • Certified personal trainer, nutrition and wellness specialist
  • 4th Degree Black Belt, Internationally experienced instructor
  • Co-owned and operated one of Canada’s top martial arts schools
  • Built an independent Health Coaching business in Victoria, BC.

Rob’s experience in the fitness industry started at a young age. He began teaching martial arts at the age of 15.  By 18, he was a key staff member in the top martial arts school chain in Canada. Following University, Rob cut his teeth in membership and personal training sales in Victoria before returning to the world of martial arts as a co-owner and managing director. During this time Rob began networking with a group called M.A.U.I. – Martial Arts University International – a collection of the top 2% of martial arts entrepreneurs from around the world. Here, Rob learned the proven strategies for elite level training, teaching, customer service, sales, marketing, team building, and business management.

In 2009, Rob started his own business as a consultant, helping independent health clubs and other health-related companies with all levels of sales, marketing and business development. It was at that time that Rob was first introduced to the sport of CrossFit. During his first introductory class, the coach talked about earning a “black belt in fitness” – Rob was hooked immediately, and has been involved with the sport ever since.

Rob brings a level of strategy and business experience to the team that is helping to raise the bar in the CrossFit industry. His passion for helping other people realize their potential is contagious, and his commitment to creating a team that provides a world-class service is unfaltering.

Favourite Benchmark Workout: Helen (first ever)
Pump Up Jam:  Good hip hop!


Dan Sinclair – Operations Manager, Partner

  • CrossFit Level 1 Instructor
  • Seneca College – 1 year degree in Certified Fitness Professional
  • York University – 3 year degree in Creative Advertising
  • Humber College – 1 year pre-service Fire Fighter Education and Training
  • First Aid/CPR Heart and Stroke instructor, EMFR Medical Training
  • Career Firefighter in Midland, ON

Dan grew up playing on a soccer field and by the age of 18, he had made his way to the professional level.  When an injury forced him out of professional athletics, the relationship he developed with his trainer while rehabilitating that injury helped him realize that this was an amazing industry to be involved in.  He saw that there was a difference to be made in people’s lives.

Not only is Dan an athlete, but he brings an admirable amount of professional experience in the fitness industry.  He has been a successful small business owner, an integral part of a GoodLife Fitness club start-up team, a private consultant for fitness clubs in the GTA, and an elite level CrossFit trainer and manager at one of the longest standing CrossFit clubs in Ontario.

Dan’s commitment to his clients is second to none. He continues to exceed expectations, helping the people he works with to achieve a level of performance and life improvement they hadn’t previously thought possible.


Jon Mulder - Coach, Program Director

  • CrossFit Level 2 Instructor
  • CSEP - Certified Personal Trainer
  • NCCP Weightlifting Course
  • CPR A + AED Training 

Originally from Guelph, Ontario, Jon found CrossFit in 2009 while serving as a member of the Canadian Forces Reserves.  As one of the most unfit members of his unit, he was encouraged by an officer to try CrossFit.  With very little athletic experience, Jon tried CrossFit on his own and found it extremely humbling.  This sparked a love of human movement, learning and then educating others.  With this new-found interest, Jon attended the CrossFit Level 1 training certification in 2010 and began coaching others in the sport at his local box.  In 2016, Jon moved to the Greater Toronto Area to join the Solid Ground Coaching Staff, and he’s been an integral part of the team ever since!

Jon is an extremely passionate coach who loves to help others improve their quality of life.  If you’ve ever been around him, you know that his attention to detail and positive attitude are what allow him to help members pursue excellence.  When Jon’s not coaching our early morning warriors, you can likely find him doing his own training or relaxing with an episode of The Office.  

Favourite Benchmark Workout: Nate

Pump Up Jam: “Levels” - Avicii


Kimiko Taniishi - Coach, XFit Kids Coach 

  • CrossFit Level 1 Instructor
  • CrossFit Gymnastics Certification
  • Attitude Nation Weightlifting
  • CPR/First Aid Training 

Kimiko’s her name, and passion for health and fitness is her game!  Kimiko’s love for CrossFit began in 2013 when she had retired from competitive volleyball and was seeking a new challenge and outlet to avoid the dreaded “freshman 15”.  What began as a way to lose weight became a full-blown love affair with the sport of CrossFit and the community.  Thanks to CrossFit, Kimiko has a new appreciation for the beauty in strength.  As a Coach, she hopes to empower everyone around her to also see their strong as beautiful, and lead healthy lives.

WIth her eyes set on earning herself a coveted spot at CrossFit Regionals in the near future, Kimiko can usually be found training with the noon crew or working on her personal programming.  And if it’s Friday, be sure to find her with her favourite bubble tea in hand… because balance.

Favourite Benchmark Workout: Murph

Pump Up Jam: “Reminder” - The Weeknd


Justin Muir - Coach

  • CrossFit Level 1 Instructor
  • Emergency First Aid and CPR-C Training

Justin a.k.a “JM” was always physically active and regularly spent his days at the typical “globo gym” doing bench presses and bicep curls, but his approach to training changed after being introduced to CrossFit by a friend.  After initially cursing the different movements he had to learn, such as pull-ups and double-unders, Justin began to appreciate the variety in CrossFit workouts, and joined a local CrossFit gym.  Today, if you were to ask him to list his favourite CrossFit movements, he’d probably say pull-ups and double-unders.

Justin is part of the OG Solid Ground crew-  he helped us build Solid Ground to the sweet training grounds you see today and he was one of our first members!  From day one, he’s been committed to his training and growth as a Coach and member, and loves encouraging others to do the same.  Justin’s usually the first one to crack a joke in a workout as a reminder that you should never take anything too seriously.  His favourite part about coaching is seeing the community come together and watching members push one another to do their best in every workout.

Outside of the gym, Justin dreams of doughnuts and ice cream.  When he’s not playing the latest video game, he’s probably running around with his dog at the nearest dog park.  

Favourite Benchmark Workout: Barbara
Pump Up Jam: “Make’Em Say Ugh” - Master P


Brandon Tamane - Coach 

  • CrossFit Level 1 Instructor
  • CPR A + AED Training 

Brandon has been CrossFitting since 2013, around the same time Solid Ground first opened its doors.  He helped us lay the sweet flooring we run around on and never really left… and we couldn’t be happier about that!

After turning away from all athletic pursuits in high school and never picking it up again, Brandon began to feel like he was falling behind.  Thankfully, his competitive nature told him it was his time to shine and in the summer of 2013, he did a complete 180- he dropped everything to focus on his health and fitness, and began training regularly.

When Brandon’s not working his full-time job or training with the class, you can find him strengthening his weaknesses, throwing around a heavy barbell (clusters and snatches are his favourite), or taking a long walk on the beach… maybe even all 3 in one day, if he’s lucky.

As a Coach, his favourite thing is getting to see the changes that take place in our members’ abilities, and helping them to realize their full potential.

Favourite Benchmark Workout: Amanda

Pump Up Jam: “The Coin Has A Say” - Every Time I Die


Allen Medeiros - Coach 

  • CrossFit Level 1 Instructor
  • CPR A + AED Training 

Allen started training at Solid Ground in the summer of 2014 after being invited to “try something different” at one of our Family and Friend Day events and hasn’t looked back since!  Initially, Allen was a staple in our Barbell Club, but he eventually found himself joining a CrossFit class or two, and soon enough, Allen was doing back-to-back classes on the regular.  He loved that the sport of CrossFit offered variety in his training and kept him guessing, whereas his previous standard gym routine regularly left him bored and jumping from program to program.

After 3 years of dedication to training, eating better, and nourishing a passion for everything health and fitness, Allen’s goal as a Coach is to continuously share his wealth of knowledge and inspire others to make positive changes to their lifestyle.

Favourite Benchmark Workout: Diane

Pump Up Jam: “Bleed” - Meshuggah

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