Sachem East and Sachem North have two more weeks of football, including one game against each other.
Section XI released the rest of the shortened 2020 spring schedule on Monday.
Sachem North was hopeful for making the mini playoff tournament as a two seed in League II, but Lindenhurst was selected over the Flaming Arrows because they had a higher pre-season ranking.
Later this week, Sachem East will play at Commack on April 17 at 2 p.m., while Sachem North will host Pat-Med at the same time.
Both Sachem East and Sachem North will play in the regular season finale on April 24 at 1 p.m. The game will be played at East.
Uniquely, this is the only home game of the season for East, who were road warriors this year because their turf field was still being installed.
Both programs have played eight prior times since the district split in 2004, but have not played since 2016. Sachem North leads the series 5-3.