TUMBLE TECH COACHING STAFF
Alex McKay
T&T Director
Coach Alex was born in Edinburgh, Scotland in 1993 and began artistic gymnastics at the age of 3. He became a Scottish National Champion before transitioning to trampoline at age 14, where he joined the Scottish National Trampoline Team. He moved to Dublin, Ireland for college, where he trained and coached with the university's gymnastics program. In 2018, Alex and his wife René relocated to Texas. He began coaching at Tumble Tech in 2019 and took on the role of Trampoline & Tumbling Program Director in 2021. Since then, Alex has coached athletes to the Elite Development Program, as well as the Junior and Senior U.S. National Teams. In 2025, he represented Team USA internationally as a coach at the Coimbra Gymfest in Portugal.
Tim Antonelli
Tumbling & Freestyle Trampoline Director
Coach Tim was born in Pennslyvania and then moved to California with his family before he turned 1. He spend most of his adult life in Colorado before joining us here in the great state of Texas! He brings over a decade of coaching tumbling, trampoline and competitive TnT experience to Tumble Tech from both the perspective of an athlete and a coach. Starting in his senior year of high school, he cheered for the Cheer Central Suns before advancing to a coaching position in his second year.
He has tumbled for the Denver Broncos, the Denver Nuggets and in college at SFA. He has also trained and jumped trampoline with Cirque performers in Las Vegas. When Tim is not in the gym you can find him playing video games, working flexibility and spending time with friends.
Lilli Brown
Tots Director & Tumbling Coach
Coach Lilli was born in S. Korea and grew up in Dallas, TX. She made her debut starting in gymnastics at 3 years old. She loved tumbling and naturally jumped into cheerleading at 12 years old. She continued her cheerleading career at Pride Allstars. In college she went on to cheer at Navarro, Weatherford, and Cheer Athletics.
As an athlete she has won 2 NCA titles while at Cheer Athletics, placed 2nd at World's, and has various other National championships under her belt. She understands the competition world and all that is involved to compete at various levels.
Lilli began coaching cheer and tumbling in 2010 and has more than 10 years of experience. She has coached at various levels with varying goals. She has a passion for showing her athletes how to unlock their full potential. Watching individuals grow and achieve their goals is a passion for Lilli. She understands that every athlete learns differently and finds the best way to coach them according their learning style. Along with being very technique driven, she knows the importance of proper progressions to ensure competitors don't plateau and keep improving.
She has spent 9yrs of her coaching career in Hawaii and is excited to continue that journey here at Tumble Tech!
Jonathon Thackrey
Parkour Director
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Josh BelewSNL Director & Coach
Joshua was born in Escondido, California, but raised in Houston in the great state of Texas! When he was younger he enjoyed playing both soccer and football and excelled at both sports for 3 years. Then began training parkour in 2014 and was training anywhere he could find. Josh was looking to progress his parkour skills and applied at a gymnastics gym in north Houston and while he was there he gained his first exposure to T&T, a spot to which he quickly fell in love. He has spent over 3 years coaching team and is a GAT & USAG certified coach and has coached national champion athletes. When he is not coaching T&T or training parkour Josh enjoys hiking, cliff jumping and spending time with his friends.
Ian Duncanson
School Program Director & Tumbling Coach
Ian Duncanson was born and raised in Texas. He graduated from Texas State University in 2012 where he was a cheerleader for 4 years. Since 2002, Ian has been coaching tumbling, gymnastics, and cheer in and around the Austin area. He was the head cheerleading coach and program director for PrimeTime Cheer from 2016-2017 and Austin Cheer Factory from 2013-2016. He has also coached many high school cheer teams including Round Rock and Rouse High School. He has coached championship routines, individual routines, and fitness competitors.
Ian is a highly focused leader who has a proven track record of success with the hundreds of athletes he has coached. When he is not training athletes at Tumble Tech, Ian is spending time with his family and daughter Vivian.
Mary MojicaCheer Coach
Mary Jo was born and raised right here in Austin TX where she attended McNeil High School where she cheered for
the Mavericks and also completed high school gymnastics. She competed with Capital Gymnastics All Stars since their inception in the mid 90's. Coach Mary Jo married her high school sweetheart a few years after graduation and started a family. They have 3
amazing kids. 2 of which have graduated high school and pursuing college and career and one who is attending
Round Rock High. They have a huge family and spend all of their free time together! They all love the Dallas
Cowboys and always have the most fun! Shortly after they began gymnastics, Mary Jo got involved with judging TNT. She became certified as a category 3 judge on all the disciplines of TNT in 2014. In 2017, she began coaching TNT with a focus on trampoline and double mini at Acrotex in Round Rock. Coach Mary Jo joined the amazing Wolfpack family at Tumble Tech as a coach in 2019.
Her family has been coaching youth football and cheer for the last 21 years. in 2014, the Mojica family chartered their
very own 501c3 Pop Warner Association, Northside Youth Sports and have volunteered both their time and talents to
the community. They have grown to have a football and a cheer team on all four levels of play.
She currently serve as the Association Cheer and Dance Coordinator and founding board member for NYSA and
oversees the coaching staffs, parent relations, administration and hands on coaching of the 4 cheer teams.
Coach Mary Jo also serve as the League Cheer and Dance Commissioner for Hill Country Pop Warner and oversees
the Association Cheer and Dance Coordinators for all 16 associations within Hill Country as well as facilitates and
organizes their Competition and Showcase.
Roman Alvarez
T&T Coach
Coach Roman was born and raised in Austin, Tx. He has been competing trampoline for 7 years and specializes in double mini trampoline. He has been coaching TnT at Tumble Tech for 2 years and is excited to keep sharing his knowledge of the sport with new athletes.
Robbie Finley
Tumbling Coach
Coach Robbie was born and raised in Greenville, SC and started learning how to flips after becoming fascinated with videos on YouTube in 2013. Although he started with parkour, he quickly fell in love with tumbling and tricking along with the community that surrounded it. Robbie began coaching at his local gymnastics facility in Greenville in 2015 and has been coaching tumbling & trampoline ever since. He has competed in various trampoline, parkour and tricking competitions and has traveled all over the US for events.
Outside of work you can find Robbie training, cliff jumping or golfing.
Christian MojicaTrampoline Coach
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Michael Lachner
Tumbling Coach
Coach Michael was born in Houston, Tx in 1992. He participated in artistic gymnastics from the ages of 9-20, competing as a level 10 athlete in high school. In 2010, Michael moved to Austin to attend the University of Texas, where he continued training as a part of their club program. Michael’s coaching career began in 2012, primarily working with preschool age, rec gymnastics, and rec tumbling. In 2014, he started a trampoline and tumbling (T&T) program that he ran for 10 years. During that time, Michael coached numerous national champions, Elite Development Team members, as well as World Age Group Competitions (WAGC) athletes. He was selected as an assistant clinician for the Elite Development Camp in 2021-22, and as a coach for the WAGC in 2022-23. In 2025 Michael began his journey at Tumble Tech, working to support the T&T program on trampoline and tumbling.
Outside of gymnastics, Michael spends most of his time rock climbing or weight lifting. He also likes to read sci-fi/fantasy novels, play video games, and spend time on the water/in nature.
Jarrod Luty
Parkour Coach
Coach Jarrod has been training parkour and free running for over 8 years along with participating in gymnastics, tricking and tumbling. Jarrod aspires to be a great coach and athlete in the parkour community and influence the younger generation of athletes