The Blue Jays opened play with a 50-34 win over host Sacred Heart.
Brent Swann led St. Edmund with 26 points, while Christian McFarlain added 12 points.
The Blue Jays then fell 55-27 to Oakdale to be pushed to the battle for third place in the tournament.
St. Edmund’s Swann scored the game’s first points and later added another free throw but the Warriors jumped out to a 13-3 first quarter lead.
Oakdale pushed ahead 16-3 on a three-pointer by Reginald Philson to begin the second period before Swann drove the lane for the Blue Jays.
Drew Brown drilled a trey at the 5:43 mark to begin a 10-2 run as the Jays closed the gap to 21-15.
Swann hit three free throws and scored on a steal, while Tyler Vidrine chipped in two free throws during the run.
Justin Glasper drained a trey at the end of the quarter to give the Warriors a 26-15 halftime lead.
Oakdale opened the second half with an 8-0 run before Swann pushed in a free throw and a baseline jumper for the Jays.
Oakdale’s Deondre Sampson scored 10 of his game high 18 points in the third period including three straight drives in the lane to finish the frame.
St. Edmund closed the gap to 42-24 early in the fourth quarter when McFarlain drilled a trey, Kyle Dupre hit two free throws and Swann scored on a steal.
Oakdale responded with an 11-0 run including back-to-back treys and a baseline shot by Deandre Hampton.
Swann scored on a coast-to-coast play and later added a free throw to close the Blue Jay scoring.
Swann led St. Edmund with 18 points.
After completing the Sacred Heart tournament Wednesday night, the Blue Jays will travel to Lake Arthur on Tuesday.