Coach Karl or Coach Long Man
Karl Langenbach

Location: Bishop, GA
Coaching Offered: Single sport: running and cycling; Multisport: duathlon and triathlon from short course to long course and major endurance events

Email: [email protected]

Coaching Specialties:
  • Triathlon training for a variety of short and long course events (Ironman, Georgia Multi-sports, etc.)
  • Run training 5k to marathons, trail races and more using pace, rate of perceived exertion (RPE), and heart rate
  • Cycle training, indoors and outdoors, from races to long group rides using power/RPE and heart rate
  • Basic swim training and stroke work for triathlons, referring out for more serious swim instruction
  • Basic strength training for endurance athletes, referring out when more in-depth consultation is needed
  • Basic hydration and nutritional advice, referring out when more in-depth consultation is needed


I describe myself in social media as “a happy human being”. That says a lot about my attitude & approach to sport and life, in general. I hope to contribute to the health and happiness of all my athletes.

The basic points of my coaching philosophy are:

  • Balance in life is more critical than success in sport
  • To achieve results, be consistent
  • The body must be stressed and then rested in order to become stronger
  • Technique matters in all facets of sport
  • You should also practice your race with visualization
  • Get outside opinions and assistance
  • Use the best tools you can afford
  • Train with pace, power, heart rate, or rate of perceived exertion (RPE); race with RPE


  • I have coached a small group (typically 3-5 per year) of endurance athletes since 2011 including through the pandemic. They have achieved a number of goals; from completing their first 5k or triathlon to qualifying for the Boston Marathon or Ironman 70.3 world championships
  • USAT Level 1 Short Course, Long Course, and Youth & Junior Certified

Personal Achievements


  • Married to Enriqueta de Guzman, DVM
  • Two children: Diandra Bailey, medical student at Mercer University, and Tai Langenbach, civil engineer, PE
  • Earned Bachelor of Mechanical Engineering at Georgia Tech and Masters of Business Administration from Brenau University
  • Recently retired from Georgia Power Company after a 42-year career in utility operations, customer service, and various corporate & leadership functions


  • Lettered in track and cross country in high school, and have not stopped competing in endurance athletics since
  • Three-time Ironman 140.6 and many-time 70.3 finisher
  • Completed BRAG five times, Tour of Virginia once, and numerous one-day century and double-century bike rides & brevets
  • Has climbed the Alpe du Huez, Mont-Ventoux, Col du Aspin, Col du Peyresourde, Tourmalet, Col du Madeleine, Col de la Croix de Fer, Col du Glandon, and other mountain peaks by bike in France, Spain and the US
  • Won overall 55-60 age group in five-race 2019 Dirty Spokes trail race series
  • Was part of a four-person relay that ran the length of Georgia from TN to FL to raise money for the American Cancer Society. I have done this fundraiser three times, latest in 2019
  • Black belt in togakure ryu ninpo taijutsu
  • Three-time qualifier for the Boston Marathon