Meet the Coaches & Staff

daveDave Jimenez

Head Coach
Dave lives in Coppell, TX with his beautiful and supportive wife Stephanie and their kids Allie, Cooper and Austin. Dave is a USA Triathlon Certified Coach and an IRONMAN Certified Coach. Dave has served as an official IRONMAN Staff Coach at IRONMAN Texas in both 2016 and 2017 and at IRONMAN Boulder in 2016. He volunteers at over 25 events throughout the year that are targeted at helping people take their first staps into endurance sports.
IRONMAN-Certified-CoachUSATcertifiedHe is a mentor and a coach of coaches and considers it his duty to transmit his knowledge and love of endurance sports to others. Dave is an expert Blood Lactate Threshold Testing Practitioner and helps athletes understand their ideal training and racing zones. His passion for sport and coaching is driven by his own journey to health and wellness through running and triathlon. He is a two-time IRONMAN, a Boston Marathon finisher, and has finished eight IRONMAN 70.3 Events. He continues to compete with dreams of toeing the line at the Leadville 100 Mountain Bike Race and at the IRONMAN World Championships in Kona, HI. Dave is a member of the Gatorade Endurance Team and is a lululemon Ambassador.

JesseJesse Carrington

Jesse lives in Carrollton, TX with his wife Stacy and their daughters, Halle and Lucy. Jesse is a USA Triathlon Certified Coach and has been coaching endurance athletes for several years. Jesse began competing in sports at a very young age starting with baseball, which continued through high school. USATcertifiedHis passion for running began in high school while competing in track and cross-country. Starting college and a career, his passion for endurance athletics took a back seat until 2010 when he was asked if he wanted to ride in the famous Hotter than Hell bike rally. At the time he didn’t even own a road bike, but the week of the rally he purchased a bike and started and finished the 100K (62 mile) ride. A couple of months later he was offered an entry into the Dallas Running Club Half Marathon. He hadn’t been running too much but was still on a high after finishing the bike rally so he jumped right in in and hasn't looked back since. He was hooked. Jesse signed up for the St. Patrick’s Day sprint triathlon in Keller, TX that year. Even though it was the hardest and most humbling athletic experience of his life, it was also the greatest. Since then, Jesse has competed and finished everything from sprint triathlon races to IRONMAN 70.3 races to most recently IRONMAN Boulder this past spring.

SergioSergio Arias

Sergio has been a competitive runner for over 15 years. He ran competitively in high school and was a member of a championship team in college. After college, Sergio was involved in many local running events, from racing track & field, road mile, road 5k, road 10k, and half and full marathons.
Sergio competed individually and as a part of USA Track and Field club team.USATcertified In 2009, Sergio discovered another passion when he started working at a local bike shop. From that moment forward, he started to invest his time and resources learning everything he could about bikes, bike fit and the bike business. This included investing in himself to become a certified Retul bike fitter. As a cyclist, he loves to climb hills and ride with local groups. If you have any questions about bikes or equipment, Sergio is your man. He loves to geek-out over anything bike related.
Sergio was an assistant coach at the college level, coached at the triathlon club level with one of the largest clubs in North America, California Triathlon Club. He is a USA Triathlon Certified Coach who has coached athletes toward achieving goals like national qualification and racing and Boston Marathon qualification. He personally qualified for Boston with a time of 2:47 w/ negative splits at every 10k. Sergio is an accomplished long-course triathlete that has finished multiple IRONMAN 70.3 races

Jaleen (1)Jaleen Seshadri

Jaleen lives in Austin, TX with her husband, Raghu, and two young children Gabriel and Anna. She is a USA Triathlon, Level 1 Certified Coach and is a veteran of the Unites States Army, where she served as an Non-Commissioned-Officer in the training department and was a Combat Life Saver of her unit in Fort McPherson, GA. Jaleen's first endurance event was the Army 10-Miler, in Washington D.C., where she was encouraged by another female soldier to go long distance.
Jaleen holds a B.M. and a M.M. from Berklee College of Music and The New England Conservatory of Music, respectively, and was immediately drawn to the routine and challenges of endurance events that so closely paralleled the intensive musical training of a classical musician.
In 2005, she began competing regularly in half-marathon and marathon events all throughout the United States, and joined the sport of triathlon in 2013. She is a 2016 IRONMAN Louisville finisher and has finished multiple Ironman 70.3 distance races, as well as many Olympic and Sprint distance triathlon events.
Jaleen has a passion for encouraging others to "tri". She has a unique understanding of new-athlete challenges, herself only becoming an athlete in her late 20's. Family-work-triathlon balance are at the core of her coaching philosophy and she truly enjoys helping newer athletes accomplish their fitness goals: whether that be a 5K or an Ironman.
Additionally, Jaleen has a passion for cooking and nutrition, and can be found regularly in the kitchen, working through the newest cookbooks and athlete nutritional research. She encourages and assists her athletes with meal planning, and has been successful at balancing training-specific nutritional needs with the family meal. As a detailed-oriented coach and a clear communicator, she is competent with coaching athletes both locally and remotely. She is excited to join Octane Athletics Training Systems Coaching team and looks forward to giving back to the sport!

AvramAvram Carter

Avram lives in The Colony, TX with his wife Victoria. He grew up playing just about every sport available to him before getting into high school and collegiate marching band. After being out of organized sports for a few years Avram did his first triathlon on campus and discovered a new passion in multisport. While in the Texas Tech Triathlon club Avram realized that endurance sports gave him a place to clear his head and take out some of the stress from his busy schedule. As he participated in more races and met more athletes Avram realized he could help other athletes succeed by passing on his own experiences, as well as the experiences of other athletes around him.
As the Director of eCommerce and professional bike fitter at Tri Shop, Avram has taken advantage of unique opportunities like working with other fantastic fitters like Mat Steinmetz and John Cobb and doing some wind tunnel testing with Lauren Barnett. Avram started working towards a Masters Degree in Exercise Physiology at Texas Women's University to gain a better understanding of how the human body reacts to exercise and to be better able to coach athletes with the best methods possible.
Avram’s current focus is set on the 70.3 distance which has lead to multiple finishes and PRs at this and other distances. After competing at the 2015 USAT Long Course National Championship Avram qualified for the 2016 ITU Long Distance World Championship race in Oklahoma City. Avram represented Team USA in September 2016 at the 2016 ITU Long Distance World Championship race in Oklahoma City and is working toward qualifying for the 2017 Ironman 70.3 World Championships.

StearnsStearns LaSeur

Stearns loves bicycles and everything associated with them. He's a Slowtwitch Certified Fitter, USA Cycling Race Mechanic, USA Cycling Official and Racer. He's been racing bicycles since 2002, starting off racing road and transitioned into mountain bike racing while at Texas A&M University. He then returned to road racing, did some some track, cyclocross and gravel racing. He's also a triathlete and an IRONMAN having completed the inaugural IRONMAN Chattanooga race and though the challenge of full IRONMAN distance races are fun, he prefers long, self service races like the DK200 in Kansas and Ouachita Challenge in Arkansas. Stearns has a degree in Dietetics from TWU in Denton, TX and is working on a second degree in Mechanical Engineering. Stearns currently lives in Fort Collins, Colorado with his family, and works at Boo Bicycles. He'll likely be racing one of the Boulder IRONMAN races in the near future.

Renee Imbalzano Zegar

Renee lives in West Chester, Ohio (north of Cincinnati) with her husband Gene and two children Tyler and Sydney. She works full time at a local high school and is an expert at balancing responsibilities at home, at work, and with her training. She is an avid runner and triathlete. She was a recreational jogger out of college and decided after turning 30 and having her first child she needed to do something BIG. IRONMAN-Certified-CoachThe answer was training and finishing her first marathon. This ignited a passion in her and she began dedicating more time to training and learned to train for speed and distance. Since then she has qualified for Boston 14 times and competed in countless 5k’s, 10k’s and half marathons. Triathlon became a new area to tackle and in 2011 she completed her first 70.3 and has competed in 5 more since then. In 2012 she completed her first full Ironman in Lake Placid and then Chattanooga Ironman in 2015 where she qualified for the 2016 Ironman World Championships in Kona, Hawaii. Following that amazing experience, Renee decided she wanted to help support others to reach their goals and overcome personal obstacles and became an Ironman Certified Coach. Her racing and training history has been a testament to the fact that with the correct training and the love and support of others your body can and will do anything. Her favorite saying, “Anything is possible if we just give ourselves the time to tri!☺”. As a coach, she will motivate and provide support to her athletes to achieve things they didn’t think possible. Renee is looking forward to competing in 70.3 World Championships in Chattanooga, TN and Ironman Louisville in 2017.


Dr. Blake Middleton

Team Doctor / Medical Advisor
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Blake currently live in College Station, TX with his wife Katie and 2 year-old son Judson. He is the current Texas A&M Sports Medicine Fellow and is Board Certified in Family Medicine with a Doctorate of Osteopathy from Oklahoma State University. Blake’s greatest area of interest is race medicine with an emphasis on injury prevention, nutrition, and recovery in endurance athletes. He has enjoyed competitive sports all of his life, however just turned to endurance events about 8 years ago, completing numerous half and full marathons, sprint to full distance triathlons, and in 2013 completed a coast to coast bike ride. When not training or competing in endurance sports, Blake’s next favorite thing is providing medical coverage at events while getting to know the individual athletes to further his knowledge on their needs to become successful in the sport.