Louis R Petto
Director of Competitive Aquatics
A nationally recognized coach in YMCA, USA
Swimming and the USA Paralympic communities, Lou Petto
enters his 6th year as the Director of Competitive Aquatics at
UMLY. During his tenure, the UMLY swim team has been extremely
successful in the pool, being recognized as a Bronze Medal
Program by USA Swimming, winning numerous YMCA District and State
championships, and capturing multiple YMCA National individual and
relay titiles. Notably, Lou served as a coach for the US Paralympic
team in Rio at the 2016 Paralympic Games.
Kristina M Halner
Head Age Group Coach
Kristina graduated from Bloomsburg University in May 2016 with a
degree in Elementary Education (Pk-4). Since graduating, she has
been actively subbing in the Central Bucks and North Penn School
Distrcits. Kristina's first experience as Boy's Head Coach was
for the SAL team South West Aquatics Club. While coaching at SWAC,
she was also apart of the coaching staff at the Central Bucks
Family YMCA (Doylestown). In April 2018, Kristina became the
Director of Competitive Aquatics for the YMCA of Bucks County
(Tri-Hampton YMCA) where she led the Senior, Age Group and Pre
Age Group levels through their 11-month season. Kristina is excited
to be joining the UMLY team!
James C Krull
Lead Coach Age Groups 1 & 2 Blue
Dr. James (Jamie) Krull can only be described as
a lynchpin of the UMLY swim team and the greater YMCA
community. Despite being an active physician, Coach
Jamie has found the time to volunteer decades of service to
the Upper Main Line YMCA. He was recognized at the 2019 YMCA
Short Course National Meet as the YMCA National Coach of the Year.
Lead Coach Mini 1 & Mini 2
Galen J Gennaria
Lead Coach Senior 3 & Age Group 1 Red
Galen is in his 4th year of coaching at UMLY.
As an avid swimmer himself, Galen greatly appreciates the
dedication and determination that is required for success in
competitive swimming. He enjoys coaching every level of swimmer and
helping them to achieve their full potential in and out of the
pool. He leads the Senior 3 and Age Group 1 Red groups, and is the
lead coach of the Boy’s B team during the winter season.
Galen places great emphasis upon fostering a positive training
environment for individual and team success. He is currently
pursuing a Bachelor’s degree in Mechanical Engineering from
Andrew John Seaton
Senior + AG2Red Coach, Team Admin
Coach Andrew is in his 5th year coaching at UMLY
College: Bates College, Class of 2015
Growing-up on the Main Line, Andrew attended Radnor High School
where he was a four year varsity letter winner, team captain, and
an Academic All-American.
After high school, Andrew attended Bates College in Lewiston,
Maine. There he graduated Magna Cum Laude with a double major in
Mathematics and the History and the Criticism of Art and Visual
Culture. While competing in the pool for Bates, Andrew notched 7
All-Time Top-20 college performances in both the Breaststroke and
Individual Medley events, as well as one pool
record. Following his sophomore year of college, Andrew began
training with the UMLY swimming program under Coach Glenn
After completing his undergraduate education, Andrew returned to
the area and began working as a volunteer assistant coach at
UMLY. That Fall, he accepted a job as an Assistant Swim Coach
for Villanova University. While at Villanova, Andrew assisted
primarily with the Stroke and IM training group,
organized Men's Recruiting for the program, and oversaw the
operations of the Villanova pool. In two seasons with Villanova,
Andrew was a part of 2 Women's Big East Championships and 2
Big East Women's Coaching Staff's of the Year. Additionally,
he helped coach athletes to 26 NCAA Division I B-Cut
performances, 37 new school records, 1 Big East Conference Record,
and 2 Big East Swimmer's of the Year Awards. In addition to his
collegiate experience, Andrew has also worked alongside
several prominent NCAA and USA Swimming coaches at the
Total Performance Swim Camps at Kenyon College.
Now in his 5th year at UMLY, Andrew serves as
an Assistant Coach for the Senior groups, the Boys A Team Lead
Coach, and has also taken on the role Team Administrator at
times. During his tenure at UMLY, the Senior groups have
experienced tremendous success at the YMCA District, State, and
What does Coach Andrew enjoy most about
“Helping individuals to find success in
the pool, while simultaneously working with them to foster positive
personal growth and great teamwork!”
Robert H Bailey
Age Group Coach
Ty began working in aquatics in 2004 at the Phoenxville Area YMCA
as a lifeguard, swim instructor, and swim coach. During his 12
years there, he was also the Phoenxiville High School Head Swim
Coach for 5 years. Prior to coming to UMLY, he also coached for the
Episcopal Academy Aquatic Club for 7 years.
majority of Ty's professional life was spent owning and operating a
restaurant on South Street in Philadelphia for 30
Having been to Ironman 6 times, Ty has an appreciation for the
rewards of sincere athletic training. He especially enjoys coaching
swimmers who are willing to be the best swimmers they can be!
Coach Age Group 1 & 2 Blue
This is Heather's 4th year coaching with UMLY
College: 1993 B.S.
Elementary Education Miami University Oxford, OH
2000 M. S. Educational Counseling Southern Connecticut State
University New Haven, CT
experience: At age 8
Coach Heather started summer swim league after she passed all the
levels of swim lessons. The swim instructor suggested she try out
for the swim team. She cried behind the blocks before her first
race. Her dad turned to her and said, “Just try it once, and
you will never have to do it again”. She was hooked after her
first swimming race!
At age 11 she started year round swimming for Radnor Aquatic
Club and then for Suburban Swim Club. She moved to Clearwater, FL
at age 15 and continued age group swimming with West Florida
Lightning Aquatics. After high school she swam for Miami
Heather moved to Fairfield County, CT after graduating college.
She began to swim competitively for a Master’s swim program
at the Westport/Weston Y. Knowing her education background, the
aquatics director asked her to work as a swim instructor at the Y.
In the mornings she instructed campers and in the afternoons she
taught private lessons in backyard pools. She also taught private
swim lessons for 14 years. While she was teaching fourth grade in
Weston, CT, she was asked to be the assistant swim coach at Weston
High School. Periodically, she would coach an age group session at
the Westport Y, while attending grad school and teaching full time.
In 1997 Heather met her husband Eric at the Westport Y through the
master’s swim team.
In 2009 Heather and Eric relocated to the Philly area. It was
during that time that their children Brendan and Delaney started
swimming for UMLY. Heather still swims frequently at UMLY. Every
year for their anniversary Heather and Eric choose a different open
water swim to compete in to celebrate their love of swimming!
Currently, Heather is a college counselor at Delaware County
What does Heather like about
coaching?: Swimming is about getting
a swimmer from point A to point B in the quickest and most
efficient way possible. The joy of coaching comes from teaching a
swimmer the life lessons that are learned, while pursuing that
Tracy G Degerberg
Coach Academy + Minis
Coach Age Groups 2 & 3
Coach Phil grew up in the area, swimming for UMLY on and off as a
kid while attending local T/E schools, graduating from Conestoga in
2005. He attended and swam at Washington College in Chestertown,
Maryland and graduated with a degree in History in 2009.
After graduating, Phil worked in local T/E schools for a year
before going to get his Master's degree in teaching from Towson
University in 2012. While in Maryland, Phil headed the Age Group
program for local club team Cardinal Gold Aquatics (CGA). Upon
returning to Pennsylvania in 2013, Phil began coaching with the Age
Group teams, headed up the Girls B team, and in the summers coaches
the Varsity team at club called Martin's Dam. Phil has loved his
past seven years with UMLY and looks forward to many more.
Brennah V Ross
Coach Age Group 1
College: 2015 B.S. in Economics, The College of New Jersey
Coach Brennah followed in her older sister’s footsteps and was persuaded into joining UMLY’s swim team as a 7 year old. She quickly fell in love with the sport, and swam with UMLY for 11 years. During her time at UMLY, Brennah was a YMCA national qualifier and finalist. As a senior, she was the recipient of both the Sue Clayton and Joey Guest awards for leadership and team spirit.
During her collegiate swimming career she was a four-time NCAA All-American, and individual NCAA qualifier in the 200 butterfly. She currently holds the TCNJ school record in the same event. Brennah was voted the New Jersey Athletic Conference’s ‘Rookie of the Year’ in 2012 and ‘Swimmer of the Year’ in 2014.
Brennah enjoyed her experience at UMLY so much she decided to return to the program as a coach in 2015. She started out coaching AG1, and has since gained experience coaching athletes of all ages and abilities.
What I like about coaching at UMLY: I have always believed that the most important part of swimming has nothing do with swimming at all. The culture at UMLY is about developing strong work ethics, creating invaluable friendships, building confidence, and having a blast along the way. That is what made me love swimming so much as an age grouper, and what drew me back as a coach. My favorite part about coaching at UMLY is being able to provide that experience to another generation of swimmers, and being given the opportunity to share my love of this sport with others.
Age Group Coach
Coach Mark has 10+ years of swim team coaching experience. He
started swimming in grade school at his local YMCA in
Bethesda, MD. He continued in high school, and was a two-year
captain of his high school swim team in Fork Union, VA.
Mark started his coaching career at YMCA Camp Letts as a counselor
and lifeguard, where he encouraged children of all ages to believe
in themselves, building confidence, and helping them improve their
Mark attended The Citadel in Charleston, SC for College and
graduated with a BA in Political Science. He was a member of
The Citadel swim team and earned a varsity letter in swimming.
After graduating, he served in United States Army for 4 years
an earned rank of Captain and also played on the Army's water polo
team. After the Army, he furthered his education with a B.A. in
Education from University of Maryland, and also was a member on the
water polo club team.
Most of Mark's coaching experience has been
through YMCA’s. He served as the Head Coach of the
Mexico, MO, Marlins swim team from 1995-2005. Currently, he is a
swim instructor at Spring Valley YMCA and he also participates in
the Masters Swim Program. Mark has been married to Fran for
34 years and they have 2 sons together.
Jenna M Walmer
Age Group Coach
Coach Jenna grew up in Lancaster County and started swimming at 7
years old. After spending 10 years club swimming, she attended
Bridgewater College and continued her swimming career there. During
her collegiate swim career, she was a member of three
record-breaking relays, including one that placed 3rd at conference
championships. Jenna graduated in May 2019 with a B.A. in Global
Studies. She is continuing her education at West Chester University
for two M.a. degrees: Holocaust and Genocide Studies and General
Coach Age Group 1