Kelly made 5 of 7 3-point tries and Rigoni 4 of 6. The Bobcats (11-10, 6-4 Metro Atlantic Athletic Conference) shot 49 percent and made 12 of 28 from the arc in splitting the season series with the Purple Eagles (11-12, 4-6), beating Niagara for the first time in five games.
Marcus Hammond's three-quarters court shot gave Niagara a 41-38 halftime lead and the Eagles scored the first five points of the second half. The Bobcats outscored Niagara 24-8 over an 8 1/2-minute span, led by nine points from Young, to lead 74-63 with 3:47 remaining.
Raheem Solomon's 3-pointer got Niagara within seven at 80-73 with 57 seconds left but Young and Kelly made two free throws each.
Three Eagles finished with 13 points.
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