Eastport-South Manor Jr/SR High School fielded its first varsity football team in the Fall of 2004 under Head Coach Don Nelson. Although that team lacked experience, they played with heart and desire in spite of their 0-8 record in Division 3. The 2004 team set the foundation for all future ESM Shark football teams. The 2005 team came back with more experience and posted a 2-7 record. The program's first varsity win came at home in week 1 against Smithtown East, a hard fought 15-14 win. The team finished the season on a positive note with a 48-0 win at home against Wyandanch. The 2006 team, though undersized and undermanned fought hard dispite posting an 0-8 record. They did win the Suffolk County Officials Sportsmanship Award and Scholar Athlete Team Award. The 2007 Sharks started with high hopes after beating Center Moriches 13-7 in a non-league scrimmage game but finshed the season with a 1-7 division record. The highlight of the season was an exciting 19-12 victory at Hauppauge in front of approximately 2000 Homecoming Day Eagle fans. The 2007 team was also named a Scholar Athlete team.
 

In 2008, the Sharks hired a new Head Coach, Brian Sacks who comes to ESM from Styuvesant HS in NYC.