Force made a hot start with Jack Isenbarger scoring 17 of his game-high 29 points in the first quarter.
He drained five triples in the opening period as the home team opened up a 31-21 advantage and led by as many as 12 at 39-27 in the second.
The Giants began to fight back and after being down seven at the half and they closed to within a single point early in the third period.
But they were unable to get any closer and despite staying in contention for much of the fourth, Leeds held firm and closed out the win.
Harold Trobo led a balanced attack with 15 points for the Giants as they suffered their 25th loss of the campaign.