Swim Across America Founder Matt Vossler, Team Darien YMCA Piranhas and Darien Blue Wave Swimmers Highlight Darien’s Deep Ties to June 20 Cancer Benefit Swim

From the founder of Swim Across America to the next generation of young swimmers diving in to fight cancer, Darien will be well represented at the 20th annual Swim Across America – Fairfield County Open Water Swim on Saturday, June 20, at Dolphin Cove in Stamford.

The annual swim benefits Alliance for Cancer Gene Therapy, headquartered in Stamford and the nation’s only nonprofit dedicated to funding cancer cell and gene therapy. Established in 2007, Swim Across America – Fairfield County has raised more than $8.2 million for cancer research, supporting ACGT grants advancing better treatments and clinical trials for brain cancer, leukemia, lymphoma, osteosarcoma, melanoma, pancreatic cancer, lung cancer, solid tumors and, this year, ovarian cancer.

For Darien resident Matt Vossler, the Fairfield County swim is part of a much larger story that began nearly four decades ago. Vossler co-founded Swim Across America in 1987 after he and a small group of friends first ran across America, and then decided that more can swim than run, so in 1987, he and a group of swimmers, including some notable Olympians at that time, crossed Long Island Sound to raise money for cancer research. Since then, Swim Across America has grown into a national nonprofit holding open water and pool swims across the country – in 27 communities across America! Vossler remains a constant presence at Swim Across America – Fairfield County, helping lead the safety team and standing on the beach each year to count swimmers down as they enter the water and his family has been involved every year as well, swimming, volunteering, paddle boarding and boating.

“Matt Vossler helped create a movement that has changed the landscape of cancer research philanthropy,” said Nancy Carr, event director of Swim Across America – Fairfield County and a two-time cancer survivor. “He is still inspiring the next generation to make waves to fight cancer. It is incredibly special to have that legacy rooted right here in Darien and Fairfield County.”

That next generation includes Shep Jennings, a Darien swimmer and team captain of Team Darien YMCA Piranhas. Shep swims year-round with the Darien YMCA Piranhas and has already made a major impact as a young fundraiser for Swim Across America – Fairfield County. After first joining the swim in 2024, he quickly became one of the event’s top young fundraisers, raising thousands of dollars for cancer research and inspiring teammates, friends and family to get involved.

One of Shep’s YMCA Piranhas teammates is Jedd Gallagher, whose family’s story underscores why cancer research funding matters.

Jedd swims in honor of his grandmother, Mary Jo Re, who passed away in 2024 from glioblastoma, and his father, John Gallagher, a survivor of stage 4 metastatic melanoma. John was diagnosed at age 30, on his birthday, June 20, and battled cancer for eight years. His treatment journey included surgery to remove the original tumor, a vaccine trial, surgeries to remove lung metastases, biochemotherapy, high-dose IL-2, removal of his left lung, six brain surgeries, three rounds of radiation to the brain, oral chemotherapy and interferon shots. 

John was treated at Memorial Sloan Kettering Cancer Center and was cared for by Jedd Wolchok, MD, Ph.D., a physician-scientist whose work helped establish immunotherapy as a standard approach to cancer treatment. Jedd Gallagher is named in honor of Dr. Wolchok, who helped save his father’s life.

“I swim in honor of my grandmother, Mary Jo Re, who bravely fought and finally succumbed to glioblastoma, a form of brain cancer, and for my dad John Gallagher, a survivor of stage 4 metastatic melanoma,” said Jedd Gallagher. “Swim Across America is important to my family as we believe in funding those doctors and researchers who are trying to find cures for some of the most devastating cancers such as those that have impacted my family. I am very proud to be named in honor of Dr. Jedd Wolchok, who saved my dad’s life.”

Darien’s connection to Swim Across America – Fairfield County also extends to the high school swim community. The Darien Blue Wave Swim and Dive team, under longtime coach Marj Trifone and now captained by Caroline Gies and Heili Jalakas, has been a longtime participant in the Fairfield County swim, bringing generations of Darien swimmers into the mission of making waves to fight cancer. Together with Team Darien YMCA Piranhas, Darien’s young swimmers are helping carry forward Swim Across America’s tradition of combining athleticism, teamwork and service to support lifesaving cancer research.

The 20th annual Swim Across America – Fairfield County open water swim will take place Saturday, June 20, 2026, at Dolphin Cove, 96 Cummings Point Road, in Stamford, on the Greenwich/Stamford border. The event welcomes swimmers of all ages and skill levels to help make waves to fight cancer. Participants may choose from a half-mile, 1.5-mile or 3-mile swim course, and children ages 11 and younger can participate in a fun Kids’ Splash along the shore. A virtual SAA My Way option is also available. For registration, volunteer opportunities, or to support the swim with a tax-deductible donation, visit swimacrossamerica.org/fc.

“For this 20th year of making waves to fight cancer, we are celebrating the individuals and families who have built this swim and the young swimmers who are carrying it forward,” Nancy Carr said. “From Matt Vossler, who helped launch Swim Across America, to Shep Jennings, Jedd Gallagher, Team Darien YMCA Piranhas and the Darien Blue Wave swimmers, Darien represents the full circle of this mission: swimming with purpose, raising money for research and helping give cancer patients and families hope.”

Nationally, Swim Across America has raised more than $150 million for cancer research since its founding in 1987 and has helped fund clinical trials that contributed to the FDA-approved cancer immunotherapy medications Keytruda, Opdivo, Yervoy and Tecentriq. In the past year, Swim Across America funded a breakthrough clinical trial at Memorial Sloan Kettering that showed that immunotherapy alone could successfully treat certain types of cancer. The organization also recently awarded two first-of-its-kind gene editing innovation grants to the Alliance for Cancer Gene Therapy and Dana-Farber Cancer Institute, advancing novel CRISPR gene and base editing techniques used in targeted therapies, immunotherapies and cellular therapies. Swim Across America supports more than 60 cancer research projects annually, has eight named Swim Across America labs, and supports work at many of the nation’s leading cancer institutions.

For those interested in swimming, volunteering or donating to the 20th annual Swim Across America – Fairfield County open water swim on Saturday, June 20, please visit swimacrossamerica.org/fc.

Swim Across America is dedicated to raising money and awareness for cancer research, prevention and treatment through swimming-related events. With open water and pool swims in 27 communities across the United States – from Nantucket to under the Golden Gate Bridge – Swim Across America, along with the help of thousands of swimmers and volunteers nationwide, and past and current Olympians, is helping find better treatments and a cure for cancer through athleticism, community outreach and direct service. To learn more, visit swimacrossamerica.org.