Katrel Kelly and David Fitzgerald developed the initial stages of the team but later gave their ownership to Jeff Snader who took control as head coach and general manager.

The 2012 season officially began on April 14, 2012 with the team's home opener at Franklin Field versus the Buffalo Hunters.

The start time for the game was originally slated to begin at 8:05 p.m., however a large crowd of fans still entering the stadium caused the opening pull to be delayed.

On August 2, 2012, the Spinners played the NexGen ultimate team (a group of 15 college all-stars from across the United States) in an exhibition match.

[2] Snader would become the commissioner of the league and Spinners organization worker Nic Darling would become Vice President of Marketing.

[3] An agreement was made with the AUDL so that Snader could keep ownership of the Spinners name and logo, meaning that the team would transfer over to the new league.

The Spinners would alternate between wins and loses for most of the season (including an upset victory at home versus the defending champions the Boston Whitecaps).

However, on June 21, the Whitecaps defeated the Rumble 21–16, meaning the Spinners would have to win later that night to bring up a tie-breaking scenario.

In the off season, the Spinners managed to re-sign Esser, veteran Patrick Diviney, and Ben Scharadin, but they lost key players, such as David Brandolph who left to coach the Philadelphia Phoenix, who he played for in 2013, and three of the University of Pittsburgh players, who were signed in 2013, that left to play for the new Pittsburgh franchise of the AUDL.

However, on June 15 the Spinners announced their final game was rescheduled to earlier in the day and moved to Carey Stadium at Germantown Academy in Fort Washington, Pennsylvania.

After losing to the defending champions the DC Current, the Spinners went on a four-game winning streak to start the season with a 5–1 record.

After a second versus the New York Rumble, the Spinners went into week ten tied with the Whitecaps for first place at 5–3, and one game ahead of the Current who were 4–4.

The Spinners faced the Whitecaps in an away game that would break the tie for the first place spot and decide home field advantage for the Eastern Conference championship.

On July 16, 2016, the Spinners defeated the Western Conference champion Portland Stags 14–11 at Franklin Field in Philadelphia to win the 2016 MLU championship.

The new logo featured a spinning "S" inside of a crest, a format utilized by all of the Eastern Division teams in the MLU.

The front featured the team logo in the middle, and the player's number in blue on the upper left chest.