Nancy Lieberman


Nancy is president and founder of GO! St. Louis, which began in 2000. Throughout the past 15 years, she has guided the organization from a marathon weekend event, to an organization that today is a year-round community wellness leader. Her vision to create a fitness weekend event that included activities for all ages and abilities, has helped the organization enhance its year-round health and fitness message to include additional annual events: Halloween Races, All-American Events and KT82 Trail Relay Run. Nancy has created innovative programs and events that have received national acclaim, while inspiring thousands of people to get fit. Programs such as: GO! St. Louis Read, Right & Run Marathon®, Middle School Milers, Students on the GO!, continue to support the organization’s overall mission.

Her past volunteer experiences include: Race Director for “Race For The Cure” and Overall Event Director for Senior Olympics. Currently, Nancy is a member of several boards: Girl’s Inc.; Governor’s Advisory Council for Health and Fitness, Trailnet’s Leadership Council; St. Louis Civic Pride Foundation and has received national and local recognition:

  • Trailnet Healthy Living Award
  • Women’s Running Magazine Trailblazer Award
  • St Louis Business Journal Most Influential Business Women
  • The St. Louis Jewish Hall of Fame inductee
  • The Hellenic Spirit Foundation Athena Award
  • Governor’s 100 Missouri Miles Challenge Leadership Award

While continuously dedicating herself to helping others pursue better fitness, Nancy has also found time to complete seven marathons and dozens of triathlons, including three Ironman competitions; 20+ Half Ironman events plus 4 World Half Ironman Championships. She enjoys traveling to places where she can hike and enjoy local culture. Some of her hiking adventures have taken her to New Zealand, the Mount Blanc Circuit in Europe, Himalayas, Patagonia, and Mt. Kilimanjaro in Tanzania with her daughter, Elissa. Prior to starting GO! St. Louis, Nancy spent 20 years working in health care management in St. Louis. She was born and raised in Pittsburgh, Pennsylvania, and received a bachelor’s degree from Penn State University. She has been a teacher and social worker.

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Brian Lyons

Director of Race Management

Brian joined the GO! staff as the Assistant Race Director in November 2007 and assumed the Race Director duties in June 2008. Prior to joining GO! St. Louis, Brian spent several years as a health and safety manager in the food service industry. He is responsible for coordinating race operations for the organization’s events and programs. Most notably the GO! St. Louis Marathon & Family Fitness Weekend, where he strives to build on the annual tradition of providing a safe and quality event for more than 20,000 participants. In addition, he chairs the race operations committee, a dedicated group of volunteers, who help plan and coordinate the Marathon Weekend. Brian grew up in the hills of southwest Missouri and began his running career as a miler and half miler in middle school (he won his first race ever and was hooked). After running cross-country for Purdy High School he went on to run track and cross-county for Missouri Southern State University, where he was a two-time All-American and is now a member of the Sports Hall of Fame. Today, he continues to compete on a regional and national level. He met his wife Margaret, also an All-American runner, while on the team. They are the proud parents of a daughter, Lilian and sons, Lukas and Lincoln.

E-mail Brian at:

Mona Langenberg

Director of Operations

Mona currently oversees the recruitment of all volunteers for GO! St. Louis events and programs. In addition, she oversees registration, neighborhood cheer zones, merchandise orders, and shares the duties of Health & Fitness Expo coordination. Mona actually began her career working with GO! St. Louis president Nancy Lieberman as an intern in 2000. After three years interning, while at Washington University, she joined the staff full-time and worked in operations and registration until 2005. In her years away from the Midwest, Mona worked as a Childcare & Program Director for two YMCAs doing youth program management and development. A long-time local runner, Mona loves the friendliness of our running community and of runners in general. She’s run six marathons, tried a few triathlons and is always looking for a new challenge! Mona, her husband Drew, daughter Cecelia, and sons Sam and Patrick make their home in University City.

E-mail Mona at:

Alison Berger

Director of Special Events

Alison joined the GO! St. Louis staff in January 2013 and manages the GO! for a Cause charity program and the GO! St. Louis Read, Right & Run Marathon student program. A native of St. Louis, Alison has a background in the non-profit sector and has worked in numerous charitable organizations both in and out of St. Louis with roles in planning and implementing large-scale fundraising events and programs. While her background is in the Arts (she has a bachelor’s degree in Art History and a master’s degree in Arts Administration), Alison has found much satisfaction in working in mission-centered organizations, helping to make a difference in those served by the organizations. Alison’s current fitness routine is running after her two young children! She and her family currently reside in University City.

E-mail Alison at:

Jason Kempen

Office Manager/Registration & Data Management

Jason is the newest member of the staff and joined the GO! St. Louis team in December 2013. As Office Manager/Registration and Data Management Coordinator, he is responsible for handling all general inquiries, data entry and analysis for GO! St. Louis’ various events, and any other office related services that keep our workspace running efficiently. Jason came to us from Maritz where he worked in many different roles for over 8 years. Jason has a huge passion for St. Louis and is inspired by the GO! St. Louis mission. Jason’s personal interests include running, ping pong, playing softball and St. Louis Cardinals baseball. He resides in south St. Louis City.

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Karen Lester

Health & Fitness Expo Coordinator

Karen joined GO! St. Louis is 2002. She and her capable team of committed volunteers coordinate registration and packet-pickup at the GO! St. Louis Health & Fitness Expo during marathon weekend and the Halloween 10K in October. She is responsible for overseeing more than 20,000 race participants pre-race experience by helping to distribute runner amenities, race bibs and answer any questions from participants before a race. In addition, Karen recruits and assists with race day vendor booths for both the Marathon Weekend and Halloween 10K.