Irving Marathon Team


Alfonzo Gonzalez Jr. | Brand Ambassador

Alfonzo has been involved in the local running community for many years. Alfonzo was the 10k overall winner at our inaugural year in 2013. He has over 100+ races under his belt, completed 3 Boston Marathons heading into his fourth on April 15, 2019 and coach’s locally. Most recent this year he assisted Logan Sherman in helping pace the majority of the women in the Chevron Houston Marathon Athlete Development Program “B” standard for the 2020 U.S. Olympic Team Trials in the marathon, 2 weeks later ran the SAGU Half Marathon and also pace the 3:10 group at the Cowtown Marathon in Forth Worth.

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Kenny Hassenteuffel | Vendor Relations

Kenny has been running the Irving Marathon Expo since 2012.  An Irving native and graduate of Texas A&M University, he takes immense pride in being part of a team that gives back to the community where he was raised.  By trade, Kenny works in Talent Management for Murphy USA.


Tyler Hemenway | Course Marshal

New to the Irving Marathon team in 2019, Tyler will be serving as your official course marshal.  The Anna Tx native, former collegiate runner a Texas A&M-Commerce, and Co-Founder of Nomad Running Company has assembled a team of veteran runners to make sure everyone running stays safe, stays on course, and has an amazing experience on race day.

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Jaclyn Livingston | Volunteer Coordinator  

Jaclyn serves as our Volunteer Coordinator. Her passion to give back to her community of Irving and promote health awareness came came from her father, Dr. Jeff Livingston a physician at MacArthur Medical Center in Irving, and her mother, a registered nurse. She attended the Singley Academy in Irving and joined Health Occupation Students of America. She has a Bachelor of Science in Nursing and has been a Registered Nurse since 2010. 

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Daniel Macha | Web Guy

New to the Irving Marathon team in 2019, Daniel is our website and SEO guru. His experience ranges from managing a SEO division of a digital startup company to working for a multi-national corporation. He has a Bachelor of Arts in computer technology from University of Texas at Arlington. |

Photo Credit:  Peter Hellberg

Lazaro Alvarez | Race Director 

In 2012, the Irving Marathon was founded by Lazaro Alvarez and Ronnie Chesko, the vision was to give back to the community and showcase Irving/Las Colinas as a place with beautiful scenic running routes. At 13, Lazaro Alvarez moved from El Salvador to Irving where he ran track and cross country at Austin Middle School and Irving High School. He attended Schreiner University where he double majored in political science and international business. Schreiner did not have a running team, during his sophomore year, he helped start the University's first cross-country team. After College he moved back to Irving where a running community did not exist, with the help of social media he started the Irving Running Club, and a few weeks later the Irving Marathon was born. Lazaro and Ronnie enlisted the help of many of their high school friends to get the project started. Professionally, Lazaro has excelled in many of his roles including being the top sales person and later top sales manager at AT&T Mobility for multiple years. He was then recruited as an Account Executive for Clear Channel outdoor, for an advertising sales position in out of home advertising. His last role before leaving the corporate world to dedicate 100% of his attention to the Irving Marathon was a Territory Sales Executive for Western Union. With the support of the community, Irving Marathon’s five year vision is to be a 20,000+ participant running event in DFW and become one of the nation’s premiere running events. Lazaro serves in the Board of Directors for Irving/Las Colinas Rotary & Baylor Scott & White Irving Foundation. Lazaro also serves as an Ambassador for the Irving/Las Colinas Chamber of Commerce.