2013 saw new leadership at captain and during this year the Shamrocks club finished 4–2 in the Georgia Rugby Union Division 3 competition and were eliminated in the GRU play-in game with a loss to Charleston.

The 2013-14 competitive season would become one of the most successful campaigns in club history with the team opening up with a 4–0 run in the Black Rose Tournament, hosted by Georgia Southern University, and claiming the Championship.

Along the way the club participated in St. Patrick's Day Tournament and took 2nd place in Division 2 and in doing so defeated the Atlanta Renegades, making it a clean sweep of all opponents located within the state of Georgia.

The weekend's results mean that the Savannah Shamrocks would finish the 2015 season with a 13–2 record and tied for 7th place in the United States in Division III.

Savannah once again participated in the St. Patrick's Day Tournament in the middle of their competitive season; however, this time in the Premier Division, and defeated Chicago Blaze and losing in the semi-final to the USA Rugby South All-Star team by a score of 0–8.

Savannah squared off with Southern Pines, the Carolina Champion, in the South Championship game and roared out to a huge lead and were able to hang on to that lead in the second half, winning by a score of 53–26 and advance to the National Elite 8 in Pittsburgh, PA. Savannah's season would come to a premature end for the second straight year, this time to the hands of Bremer County (Iowa), dropping their contest 17–36.

However, Savannah would not let the defeat ruin their season, and in the consolation match-up with Rocky Gorge, the Shamrocks would take out their frustrations to the tune of a 77–0 win.

Savannah faced the Atlanta Renegades in the GRU Championship game with a chance to avenge their only regular season loss, but would come up 3 points short.

Savannah was able to bolster their roster with a lot of young talent and is hoping to retain many of this year's players as they look forward to regain the GRU Championship in 2019.

The following day Savannah was able to defeat the Asheville Iguanas 26–10 claiming the South Championship and returning to the National Elite 8 for the third time in six years.

The consolation game would not go Savannah's way either as they faced off against the 2018 National Runner-Up, Long Island, and were defeated to close the season with a 9–2 record and a #7 finish in Division 3 of the United States.