ASHEVILLE, N.C. -- Derrell Armstrong had 25 points and eight rebounds, and UNC Greensboro scored 55 second-half points to beat Chattanooga 87-81 in the first round of the Southern Conference tournament Friday.

Trevis Simpson scored 17 points, Nicholas Paulos had 11 and Kayel Locke 10 for the 10th-seeded Spartans (9-21), who will face second-seeded Elon on Saturday.

The seventh-seeded Mocs led 67-56 10:08 left, but the Spartans made a 10-point run capped by Jordan Potts' 3-pointer for a 70-68 advantage.

Armstrong scored seven points and Korey Van Dussen hit a 3-pointer for an 82-74 advantage with 3:58 to go, and the Spartans made five free throws down the stretch to secure the victory.

The Spartans were 17 of 29 and 8 of 11 on 3-pointers in the second half.

Z. Mason had 20 points and eight rebounds for the Mocs (13-19), Ronrico White scored 19 and Casey Jones 11.