FLG Staff

Bob Jahelka is the Vice President of FLG Lacrosse. Jahelka graduated from C.W. Post in 1985 with a Bachelor of Science degree from the Professional School of Accountancy. During his time at Post, he was a member of both the football and lacrosse teams. In 1984, his senior year, he was selected to the North South All Star game while earning 1st Team Academic All American honors. His achievements during his tenure at Post earned him elections into the C.W. Post Football Hall of Fame and the C.W. Post Athletic Hall of Fame. His affiliation with FLG Lacrosse and Lax4All dates back to their inception in 2007.

Jahelka lives in Garden City now with his wife, Patricia, and his children, Stephen (Harvard University) and Jacqueline (Adelphi University).

After graduating from Cold Spring Harbor High School in 2007, Corey committed to play lacrosse at the University of Pennsylvania. Corey graduated from UPenn in 2011 with a Bachelor’s Degree from The Annenberg School for Communication, with a minor in Lacrosse. A four year player on the Varsity Lacrosse team, Winkoff was a senior captain and led the Quakers to their first NCAA playoff appearance since 2005. After graduating from UPenn, Corey immediately joined the FLG staff.

Some of Winkoff’s responsibilities include implementing the marketing & cultural framework for the company; creating unique marketing campaigns, using digital design programs; developing lacrosse curriculums; planning events; as well as coaching.

Aside from his work with FLG, Corey is also The Head of Development for FLG’s Lax4all Organization. In order to build FLG’s non-for-profit Organization, Winkoff initiates, markets and executes online fundraising campaigns. Additionally, he also raises funding for operational costs through networking and sponsored events.

Brandon Mangan serves as the Event Sales Coordinator of FLG Lacrosse. In this position, he is responsible for the sale and marketing initials of all organizational clinics and showcases. An FLG alum, Mangan is also a coach for the FLG Boys 2020 team.

Mangan is a 2014 graduate from Yale University with a degree in political science and was a four-year member of the men’s lacrosse program. He finished his career with 99 goals (fourth) and 163 points (sixth). He helped lead the Bulldogs to the NCAA tournament in 2012 (First Round) and 2013 (Quarterfinals). In 2013, Mangan was a Tewaaraton Trophy candidate, USILA All-American (Honorable Mention) and Second-Team All-Ivy League, as well as First Team All-New England. His team leading 39 goals and 64 points in 2013 is a record for a junior at Yale.

Following his collegiate career, Mangan was drafted the New York Lizards (34th Overall Pick) in the 2014 Collegiate Major League Lacrosse (MLL) Draft. He played in four games and tallied three goals and one assist. He was acquired via trade to the Florida Launch for the 2015 season. Mangan was selected in the 6th round (52nd Overall) of the 2016 MLL Supplemental Draft and will play for the Ohio Machine this upcoming season.

Mangan starred at Wantagh High School where he was a four-year letterman and a captain his senior year (2010). In that same year, he was a First-Team U.S. Lacrosse All-American, Nassau County Player of the Year, Nassau County Attackman of the Year and was a member of the Nassau County finalist team. In his career, he tallied 195 goals, 333 points and was a three-time All-County selection. In 2009, Mangan was a member of the Under Armour Long Island Team.

Mangan resides in Wantagh, NY and is an assistant coach for boy’s lacrosse team at Farmingdale High School.