RB Miguel Maysonet, QB Kyle Essington, WR Kevin Norrell, OL Michael Bamiro, DB Dominick Reyes and Cedrick Moore were among the major losses for the team. Bamiro being an unusual case in which he exhausted his collegiate eligibility but missed the NFL draft while being draft eligible. Maysonet, Norrell, Bamiro, and Moore were among those that signed free agent contracts with NFL teams. Maysonet played a crucial role in Stony Brook's running game being a finalist for the Walter Payton Award.
The 2013 season brought Stony Brook football to the ESPN Radio Network for the first time ever. ESPN Radio Network will broadcast all Seawolves football games in Long Island as it looks to expand its footprint in the region. Champions Radio Network (ESPN Network in Long Island) broadcast all Seawolves football games across the Island in two frequencies. Stony Brook will have one game displayed on ESPN3 and two games under the NBC network with the possibility of a third one being added on Rivalry week. Additional games streamed online in the Patriot League Sports Network (vs. Colgate) and Stony Brooks own streaming service.
Stony Brook joins the Colonial Athletic Association and will be facing eight conference opponents. The Seawolves will play a 12-game schedule, taking advantage of an NCAA rule that allows FBS teams to schedule 12 games in years when the period starting with the Thursday before Labor Day and ending with the final Saturday in November contains 14 Saturdays. Originally, Stony Brook scheduled Boston College for the first week of the season, however, due to a schedule conflict with the ACC, Boston College was forced to drop Stony Brook and picked up Villanova. As a result, Stony Brook scheduled Penn in an organized scrimmage with eleven regular season games.
Stony Brook will travel to Kingston to open up their 2013 regular season against the Rams. Stony Brook looks to open up the season with a win for the second consecutive season while Rhode Island looks to earn their first victory since 2011 after a win less 2012 campaign. This will be the first ever meeting between both programs.
Stony Brook will travel to Amherst to face off against the Buffalo Bulls for the second time in three years. After a 35–7 loss at Amherst back in 2011, the Seawolves will look to upset their in-state SUNY rivals and even the series. Buffalo leads the all-time series 1–0.
What will be an exciting rematch of the first round of the 2012 FCS playoffs. The Seawolves look to win their second game in as many matches against Villanova. As first year members of the CAA, Stony Brook will travel to Villanova Stadium to face-off against the preseason top-picked Wildcats. Stony Brook leads all-time series 1–0.
Stony Brook will face Albany, on rivalry week, at Kenneth P. LaValle Stadium renewing a rivalry last played in 2011. Stony Brook and Albany previously played yearly as members of the Northeast Conference until 2007. Arguably the most heated rivalry between state universities in New York, Albany will look to continue its dominance of the series, while Stony Brook looks to extend their series streak after a 31–28 victory in the Football Championship Series playoffs in 2011. Albany leads the all-time series 9–5