Our Coaches
Ulmis Iordache
Ulmis started the Greenwich Aquatics program in 2007 and has been leading the club for the last 18 years.
Ulmis began playing water polo at the age of 5 in Bucharest. From 1997 to 1999 he played for C.S. Steaua Bucharest and participated as a 1997 Romanian Cup '84-'85 Winner; 1998 National Championship '82-'83 Runner-up; 1999 Romanian Cup '84-'85 Winner; 1999 Winner of Tanaka Cup; and 1999 National Championship '82-'83 Winner.
From 2000 to 2002, Ulmis played for LER Steaua. He was the 2000 Romanian Cup '83-'84 Winner; 2001 National Champion '84-'85 Third Place finisher; and 2002 National Championship '84-'85 Winner. On the Romanian National Team in 1999 to 2002 '83-'84, Ulmis played in the qualifying of the European Championship in Belgrade and was winner of the Balcan Cup in 2000. He also played for Sportul Stundentesc in 2002 to 2003.
Ulmis has been the head coach for the Brunswick High School Boys team since 2009 when the program started and has built the school’s program to a national powerhouse. Ulmis also coaches the Greenwich Academy High School Girls team in the spring and has been doing that since the inception of the program in 2016.
Ulmis lives in Stamford with his wife (who coaches Diving at Yale) and their two sons Teddy & Gus are playing on our 10U travel team.
Kim Tierney Wang
Kim is a founder director of Greenwich Aquatics back in 2007 and has been the director of operations for the last 18 years.
Kim was an All-American at Bucknell University. There she was Team Captain and was lead scorer all four years with a career total of over 500 goals.
At Columbia University, Kim was a member of the First Team New York Division All-Conference Team and the Collegiate All-Academic Team. She was named Most Valuable Player- New York Division. She was the highest scorer at Women's Club National and was the lead Columbia scorer at all tournaments.
In 1994, Kim was a member of the USA Olympic Festival Team. She is the first and only female to join the boys' Greenwich High Water Polo Team. Kim was part of the first women's team at the New York Athletic Club in 2002 and she continued to play with them for over 12 years. In 2006, she was inducted into Greenwich Aquatics Hall of Fame.
Kim is a graduate of Bucknell (BA in Psychology) and Columbia University (MA & EdM in Psychological Counseling). Kim lives in Greenwich with her husband and 3 children, all who play water polo. Her oldest, Sofie is playing water polo at Harvard.
Paul Constantin
Coach Paul has been coaching with Greenwich Aquatics since 2019.
Hailing from Romania, Paul comes to us with over 20 years of water polo experience. Paul started playing goalie at the age of 7. He played professionally in the Romanian Super League for 7 years before moving to Germany to continue his pro-career for 4 years at two different clubs (Duisburg SV 98 and SG Neukölln Berlin). He played in over 350 games in his professional career and brings invaluable knowledge of international water polo experience. He is still an active water polo player for the New York Athletic Club.
Paul was the head coach for the Greenwich High School girls team from 2015-2022 and was also one of Chelsea Pier’s age-group coaches for five years.
Paul holds a degree in Environmental Engineering, Biotechnical and Ecological Systems. He speaks 4 languages (Romanian, Hungarian, German, English). He currently lives in Greenwich with his wife and two daughters. He oldest daughter is playing noodle water polo.
Chris Vidale
Chris Vidale is the current head women’s coach at Michigan. He was the head coach of Marist College’s women’s water polo program for 10 years and compiling a 140-86 overall record while leading the Red Foxes to MAAC Tournament berths each year—including a MAAC Championship title in 2021—and guiding numerous student-athletes to All-American and All-MAAC honors. His coaching résumé also features significant international experience: as head coach of the USA Women’s Cadet Team in 2024, he directed the U.S. squad at the 2024 Cadet World Championships in Manisa, Turkey, where the team finished in seventh place.
Chris was the Greenwich High School Head Boys coach from 2014-16 and was also the head coach for NYAC Women’s team from 2013-17. He lead the women to three straight National Championships and coached over a dozen current & former Olympians.
As an alumni of Iona, he was the assistant men’s coach from 2009-14 & the assistant women’s coach from 2009-16. He helped the team win three MAAC Championships in 2011-13 and coached 27 All-MAAC First and Second Team selections and 10 MAAC major award winners.
Chris has been coaching with Greenwich Aquatics since 2013.
Thomas Dunstan
Thomas has had a distinguished water polo career both at the national and international levels. A native of New Canaan, CT, Thomas’s journey in water polo began at the age of 10 with Greenwich Aquatics. After competing for various Greenwich Aquatics age group travel teams for 6 years, Dunstan was recruited for the USA Senior National Men's Team. He subsequently moved to California to train full time with the USA National Team. At 16 years of age, Thomas was the youngest east coast player ever to be selected for America’s top water polo squad. At the age of 18, Thomas was part of the U.S. National Water Polo Team that competed in the 2016 Rio de Janeiro Olympics. He helped secure a silver medal at the 2016 FINA World League Super Final. His accolades also include gold medals at the 2014 UANA Junior Pan American Championship and the 2014 FINA Intercontinental Tournament. Thomas continued his international career by competing in the 2017 FINA World Championships.
Thomas continued his athletic and academic career at the University of Southern California, where he was a key player on the D1 Men's Water Polo Team. During his freshman season in 2016, he made an immediate impact by scoring 25 goals in 17 games, with seven multiple-goal performances and a standout hat trick in the NCAA Semifinal win against Harvard. As a sophomore, he contributed 20 goals in 14 games, including five multiple-goal outings and a career-high hat trick against Pomona-Pitzer, while being a member of the NCAA Tournament roster.
Expanding his professional experience, Thomas played for elite international clubs, including Pays d'Aix Natation in Aix-en-Provence, France, and VK Partizan in Belgrade, Serbia. His dedication, competitive spirit, and exceptional skill have made him a respected figure in the water polo community worldwide. With a wealth of experience at the highest levels of the sport, Thomas is excited to give back to his community and share his knowledge with our athletes.
Daniela Screnci
Daniela is a Greenwich Aquatics alumni and was one of our star athletes during the beginning years of Greenwich Aquatics. A National Team level player, Daniela went on to play at Long Beach State, a top 10 women’s D1 program in the country.
After graduation, she played professionally in Italy for 3 years. She played for the Messina, Cosenza, and Verona Water Polo clubs.
She then moved to Florida in 2018 and started a water polo club called Next Level Water Polo in Clearwater. We have attended their tournaments. For 5 years, Daniela grew water polo to have over 100+ athletes in her club.
Addison Collins
Addison is originally from Maryland but started playing with Greenwich Aquatics in the summer as her club did not have an all-girls team.
A graduate from Iona University where she played all 4 years. Addison has been coaches with us for the last four years working primarily with our 12U Girls team.
Nikola Malezanov
Nikola brings over 25 years of coaching experience at the club, high school, collegiate, and international levels. Since the Fall of 2017, he has served as the head coach of both the men’s and women’s waterpolo programs at Washington & Jefferson College, where he has built a strong and competitive program.
Nikola has also contributed at the highest levels of the sport. He served numerous roles including Cadet and Youth Head Coach for the USA Men’s National Team during his USA WP tenure.
Nikola has played an important role in shaping the sport. He served as Chairman of the NCAA Water Polo Rules Committee and has been a member of the NCAA Men’s Water Polo Committee representing Division III and the East Region.
Originally from Niš, Serbia, Nikola has a strong international and domestic coaching background. Prior to his collegiate career, he led both the Pittsburgh Water Polo Club and North Allegheny High School to multiplePennsylvania state championships. He also gained valuable experience early in his career as a graduate assistant at Salem International University and later worked with the United States Naval Academy’s water polo programs.
Thomas Cass
Tom yet is an alumnus of Greenwich Aquatics, played water polo at UC Irvine and played professionally in Australia, while coaching at Mermaids Water Polo Club. Tom coached our 16U Boys team this summer at JOS and is helping out with our younger age-groups this fall.