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Meet our Coaches

Please enjoy reading about our staff

Teresa DiMauro (HGC Director)

  • Started coaching at the age of 16 at the Westminster YMCA
  • Joined Harford in Summer of 1979 as a college job & became co-director 1984-2004
  • Became owner and director in 2004 with the passing of husband Frank Yapps, founder
  • Was a scholarship gymnast at Towson & 3 time National Qualifier
  •  Awarded twice the Towson Female Athlete of the Year & 2-time most valuable gymnast
  • 6th place on vault at Div II Nationals and graduated as Towson’s all-time leading
  • Received Towson’s Christopher Souris Award for Outstanding Jr Year Scholar Athlete
  • Coach of 7 time National Champion (L10 & USAIGC) at Harford
  • Loves utilizing gymnastics to help youngsters become confident, hard-working, goal setting individuals


TC Walstrum (HGC Associate Director & Team Manager)

Started Coaching in 1980
Joined Harford’s staff in fall of 1983
Pioneer of Harford’s Junior Bee program
Coached for Harford County Parks and Rec, PAL Gymnastics, and Balt Co Parks and Recreation
Competed 4 yrs for her HS team and 2 years at Essex Community College
Qualified for Junior College National Championships
Firm, Fair and Encouraging is her coaching style which has proven to get great results
Loves helping her athletes achieve their best  and helping them grow as individuals


Danielle Zacherl (HGC Assistant Director and Level 3-5 Manager)

Started coaching Gymnastics in 2009
Joined Harford’s staff in 2013 as a full time employee
Previously taught at Leap of Faith Gymnastics and Atlanta School of Gymnastics
Started in gymnastics at the age of two and competed thru High School at Pittsburgh Northstars
Strives to find a balance between critique and encouragement to give her athletes an amazing positive experience as they improve their gymnastics skills
Leads with kindness, concern and continued education to the staff
She loves encouraging young athletes to reach their goals and help them grow their love for this awesome sport


Brianna Pickle (HGC Assistant Director & Level 2 and Pre-team Manager)

Started gymnastics at 9 months old
Started teaching gymnastics at age 14 as she grew up at Harford Gymnastics       
Joined Harford full time in 2013 and joined the team coaching staff  in 2015
Also coached at Skyline Gymnastics during her college years
Earned a Division I scholarship for Lacrosse to University of Massachusetts
Held Harford’s vault record for 18 years (Level 6 equivalency)
Enjoys seeing the gymnasts grow and learn new things and work to fine tune and perfect their technique
Loves coaching with a caring heart which she learned from her parents


Kelly Blackwell                                                                                       

Started Coaching 2013
Joined Harford’s staff 2015
Competed as a Level 10
Multiple time National Qualifier
7th on Beam at L9 Western National Championships
Highest AA score was a 39!
Loves passing on her knowledge of the sport that has brought her so much joy as a child onto her gymnasts as she strives to be the best coach she can be


Brendon Crevecoeur

Started coaching in 2008
Joined Harford’s Staff in 2013
Was a Level 10 National Qualifier gymnast at Ultimate Gymnastics
Multiple State and Regional Champion
Enjoys tumbling around the gym from time to time
Loves seeing kids get excited about a learning a new skill and working with gymnasts thru their fears


Brian Dawson

Started Teaching Gymnastics in 1997 at Gymnastrum Gymnastics in Pa.
Joined Harford’s staff in 2002
Placed 4th at Junior Olympic Nationals
NCAA National Vaulting Finalist & All-ECAC East Squad honors
Coaching Gymnastics for him takes an edge off his legal career as an attorney
Loves the thrill of achievement of his athletes and the thankfulness of the athletes


Jessica Friemann

Started coaching in 2004
Joined Harford’s staff from Rebounders in 2005
Competed thru high school as a Level 9 gymnast
Placed 2nd AA at L8 States
Pioneered her high school gymnastics team as an independent, then they formed an official team
Proud moment when she was recognized by a former gymnast as the “teacher who impacted the child the most through her life”


Katie Howser

Joined Harford’s staff in 2014
Received her gymnastics training at Harford
Participated 12 years in competitive cheerleading
Always looking to grow and learn all she can in the gymnastics world
Fell in love with Gymnastics and enjoys inspiring youngsters to be the best they can be
Loves working with children and being a part of their progress


Tina Kratzmeier

Started coaching in 1988 in Tashkent, Uzbekistan                             
Joined Harford coaching staff in February 1993
Absolute Champion of Uzbekistan in 6 events and all-around for 3 years for Rhythmic Gymnastics as member of the USSR Rhythmic National Team
Certified as both an artistic gymnastics and rhythmic gymnastics judge
Enjoys attending master classes with world famous dancers,judging seminars, and gymnastics congress.
Loves being a part of the gymnasts’ physical, mental and disciplinary growth. Also loves sharing the accomplishments with the gymnasts and her amazing (as she calls them) co-workers.


Ron Lievendag (Optional Program Lead Coach)

Started coaching in 1984 at the Naval Academy as an assistant coach to Olympian Peter Kormann
Promoted to head coach at the Naval Academy
Earned the honor of EIGL Coach of the year while coaching at the Naval Academy
Joined Harford’s staff in fall of 2002 when he moved back to the area & his daughter joined our team~ his daughter went on to earn a full ride Division I scholarship
Competed at Cortland and was a 5 time All-Around Champion
Loves the sport of gymnastics with its challenges and has great fun watching kids learn and grow as athletes and as people


Don Miller

Began teaching gymnastics in 2011at Harford
Quickly advanced through the levels from class teacher, to pre-team coach, to team coach in 2013
He is a fitness enthusiast which carries over to his coaching
Earned a degree in Occupational Therapy and works to improve patients’ living skills
Has previously worked at both Johns Hopkins and Bel Air Rehab, and is currently an occupational therapist at Springfield State Hospital while he coaches part time
Loves using his keen awareness of movement to break down skills and do lots of drills to optimize technique of skills which allows each gymnast to progress


Becky Schaller

Started teaching gymnastics classes in 1995
Competed at the Elite Level & qualified to Elite National Competitions
Won 7 National Titles at Level 10 and US Association of Independent Gymnastics Clubs (USAIGC)
Earned a full ride gymnastics scholarship after being recruited by 5 colleges
Joined Harford’s staff full time in 2000 after graduating with a B.S. Degree in Kinesiology
Spent 5 years as Towson University’s Assistant Gymnastics Coach where she earned the honor of being  the EAGL conference Assistant Coach of the Year
Returned to Harford part-time in 2016
Loves helping young athletes set goals, develop a strong work ethic and achieve success


Jeff Wilson

Started Coaching in 1984
Was previously head coach for Rebounders boys team for 5 years                                         
Joined Harford’s staff in 2012
Two time Carroll County AA gymnastics champion
District AA Champion in high school
Loves coaching the sport that changed his life. Loves sharing his passion of gymnastics with the gymnast and puts his whole self  into caring about the gymnasts and coaching gymnasts to be the best they can be

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