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About TMT Coaching

TMT Coaching was born from Coach Megan Tobin's Instagram handle, @trimegtri. But it very quickly became apparent that TMT was far less about just Coach Meg, and WAY more about an overall approach to coaching and community.

TMT stands for many things, but we believe it stands for the mindful triathlete - mindful of our dedication to the practice of endurance sports, mindful of each other, mindful of our environment, mindful of our own missions to be the best we can be. We start from where we are. We grow and learn.


We are mindful (tri)athletes. We are Team TMT.


Coach Megan racing Ironman South Africa
coach athlete relationship is key

Leslie, Multiple Ironman & Ironman 70.3 finisher, warrior

The relationship that I have with my coach, Megan Tobin, and how she listened to me and encouraged me throughout the process of training for IM Cozumel was the best part!


Most importantly she believed in me and gave me the confidence to believe that I could finish the Ironman and in my goal times-which I did!

we do crazy things. The Joseph

Joseph, Ironman & Escape from Alcatraz goal smasher

I chose to go with TMT Coaching because I liked the style of coaching, volume of workouts, and how detailed the workouts were. (Coach Meg) is responsive to texts/emails when I have questions or if I need last-minute adjustments to my schedule.  She understands that I have more in life than just triathlon and makes a schedule that works around my needs/schedule/life.


Bryant, Alcatraz and 70.3 athlete

(TMT Coaching) took the guess work out of training. Coach Kim was very attentive and worked around my odd schedule. Every Sunday I knew what I had to accomplish for the week. Can't wait to team up for the next race.

Coach Megan has over 8 years experience coaching full time

Coach Megan Tobin

  • Ironman U Certified Coach

  • USAT Certified Level 1 & 2 Coach

  • Training Peaks Level 2 Certified Coach

  • USMS Certified Coach

  • Dr. Stacy Sims WANSM Certification

  • Women's Specific Training Program Specialist

  • One with the Ocean Open Water Swim Coach  

  • Advocate for ALL athletes in sport

  • World Championship athletes: 3x Ironman World Championship qualifying athletes, 12x Ironman 70.3 World Championship qualifying athletes 

The TMT Story

About Coach Megan


Megan Tobin is a coach, triathlete and open water swimmer living in Boulder, Colorado and the San Francisco Bay Area. Megan has always been an athlete; competing in various team sports, including swimming competitively and playing field hockey at a collegiate and national level. After devoting several years to building a career in technology marketing as well as a family, she discovered triathlon through her colleagues while going through a difficult divorce. What started as a way to get back in shape over 15 years ago became a passion for multisport, self-care and, perhaps surprisingly, bringing balance back into her life.

Having begun her triathlon journey as a mom of 3, full time corporate marketer and single mom, Megan both understands the demands of a busy life, but also knows that finding time for training and racing can bring so much to both you the athlete, but also help you be a better person, parent, and professional. (Yes, really.) She’ll help you prioritize your training and your life and break through mental barriers that inhibit your performance. Megan's mission is to lead by example and drive for diversity and inclusion in sport.


A multiple Ironman 140.6 and 70.3 World Championship qualifier and finisher, Megan coaches for TMT Coaching, both the beginner and advanced programs for SF Triathlon Club and non-profit One with the Ocean. She is a certified short course and long course triathlon specialist.


Favorite race mantras: I haven't come this far to come this far.



Losing hurts more.

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Coach Meg Credentials
Coach Kim Credentials
Coach Kim has raced all distances and is eager to help

Coach Kim Meraz

  • USAT Certified Level 1  Coach

  • Training Peaks Level  Certified Coach

  • Precision Nutrition Certified Nutrition Coach

  • Certified Balanced Body Mat and Reformer Pilates instructor

  • Red Cross Certified CPR/First aid/AED

    Wilderness First Aid Certified

The TMT Story

About Coach Kim


Kim Meraz is more than just an athlete and a coach - she is a FAN of the sport. She has a deep passion and love for triathlon and all it has helped her through. She discovered Triathlon while she was going through a difficult divorce and it helped her find a sense of self and an outlet to build confidence and find an amazing community of support.


Kim started her athletic journey in middle school running track and competed in the100m hurdles and 400m relay through high school and college. She continued to run through her adult life until she discovered the world of multiport. Kim is a single mom of one amazing son, and has been a Sports Massage Therapist for 27 years. Her in-depth knowledge of the human body gives her a unique perspective to athletics and coaching, embracing a very holistic approach with her athletes.


Kim has been competing in Triathlon for about 16 years. She’s completed 2 full Ironmans, 10 70.3’s, and many short course and single sport events.


When Kim is not training and racing, she is an avid snowboarder, backpacker, hiker and world traveler. She has completed the Wilderness Travel Course with the Sierra Club, is Wilderness First Aid certified and volunteers with the Sierra Club. She lives in the Los Angeles area with her capricious cat Melon.


Favorite race mantras: Pain is Temporary - Quitting is forever



Coach Ariel Credentials
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Coach Ariel Aponte

  • USAT Certified Level 1  Coach

  • Training Peaks Level 1 Certified Coach

  •  20 yrs of leading, training, and mentoring elite Special Forces soldiers

The TMT Story

About Coach Ariel


Ariel “AA” Aponte is a retired Special Forces Warrant Officer who, as an athlete and coach, has pushed the envelope to surpass the limits of triathlon.  Ariel competes for those who cannot or are no longer with us, due to their military service in protecting the oppressed abroad.  He started his triathlon journey to bring awareness to invisible wounds such as Post Traumatic Stress Disorder (PTSD), Traumatic Brain Injury (TBI), and Veteran Suicide Prevention (VSP) that veterans including himself, deal with on a daily because of combat operations in Afghanistan and Iraq.  


Ariel's “Stay in the Fight Mindset” was derived from his service to this nation.  He is a graduate of the Special Forces Qualification Course, Enlisted Honor Graduate of the United States Army Ranger Course and Distinguish Graduate of the United States Army Command and General Staff College.  His 20 years of leading, training, and mentoring elite Special Forces soldiers physically, mentally, and emotionally, makes him an ideal coach for beginners or advanced athletes who want to become the best athlete they can be at all distance and disciplines.    


Ariel has competed at Ultraman Florida, Ironman World Championship Nice, USA Triathlon Nationals, 8 Full Ironman, 3 70.3’s, 1x 50K run, and many 26.2 and 13.1 marathons.  Ariel placed in the Top 5 at Ultraman, sub 10 at  Ironman Florida, and has run Boston Qualifying time at the Texas Marathon and won his overall age group.   


Favorite race mantra: I Can, I Will, I Must


Favorite Movie and Quote: Shawshank Redemption “Get Busy Living Or Get Busy Dying”

Strength & Conditioning

Coach Kirstie Young

Kirstie (she/her) is a strength and conditioning coach who has been working with athletes of all levels of experience since 2014. 

She specializes in working with people who are new to strength training and endurance athletes. The best part about coaching her athletes is helping them take ownership of their bodies and fall in love with all the benefits of getting stronger.

In her free time, she enjoys cycling, knitting, or baking up a storm.

Get to know us. Come join us on Tuesday mornings, 6 am PST/ 7 am MT/9 am EST for our weekly Zoom strength sessions with Coach Kirstie Young!

Minimal equipment required, all abilities encouraged!

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Joga with Joseph Dinh

Meet our Joe-ga guide, Joseph, who brings a decade of personal yoga practice since 2010 to our weekly classes. He has honed a passion for yoga, especially its role in maintaining flexibility for triathlons and cycling. Focused on stretching and fostering a mind-body connection, Joseph invites participants to join in a transformative journey, embracing the holistic benefits of yoga and the joy of movement.


We are hiring!

Are you a triathlon coach looking for a diverse team, business and marketing support and mentorship? Are you USAT certified and willing to become Ironman U Certified with our support?

TMT is looking for coaches that want to help athletes push past what they believe they can do. Sound like you? 

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