Under Spallina, Stony Brook has produced 12 IWLCA All-Americans, 10 Tewaaraton nominees, three Tewaaraton finalists, six conference championships, six NCAA Tournament second-round berths and two NCAA quarterfinal appearance.

2018 was a record-breaking year for Stony Brook, who won 20 games for the second-straight season. The Seawolves earned the first No. 1 national ranking in program history, staying atop all three major lacrosse polls for 11-straight weeks heading into the 2018 postseason. The Seawolves finished the year leading the nation in six major Division I categories: points per game (29.28), scoring margin (+10.80), assists per game (11.23), shot percentage (.547), turnovers per game (12.00), and team defense (7.09 goals-allowed per contest).

Spallina led Stony Brook to new heights in 2017, as the Seawolves posted a program-best 20-2 record and advanced to the NCAA quarterfinals for the first time in program history. Stony Brook had the nation's top scoring defense for the fourth time in the last five seasons under Spallina's guidance, while the Seawolves also recorded the nation's No. 3 scoring offense and a nation-leading 10.09 assists per game. Spallina coached four IWLCA All-Americans in 2017, including Tewaaraton finalist Kylie Ohlmiller, who broke the Division I single-season points (164) and assists (86) records, and Tewaaraton nominee Dorrien Van Dyke. The Seawolves won six games over ranked opponents in 2017 while reaching as high as No. 3 in the national polls.

The Seawolves won their fourth-consecutive America East title as part of a 17-win campaign that brought Stony Brook to the second round of the NCAA Tournament for the fourth consecutive year. Stony Brook was ranked as high as No. 7 in the IWLCA poll and No. 6 in the Inside Lacrosse rankings during a program-record 15-game winning streak that spanned from March to May. The Seawolves had three All-Americans under Spallina's tutelage in 2016 - Courtney Murphy, Kylie Ohlmiller and Alyssa Fleming. Murphy set the program records for single-season and career goals in 2016 and became the first 100-goal scorer in Division I history.