Down as many as 14 points in the second quarter to North Pocono, Dallas chipped away at the lead and jumped ahead for good in the final minute.
Austin Finarelli tipped in a shot with 14 seconds left to lift the Mountaineers to a 62-61 home victory.
Dallas forced a North Pocono turnover on the ensuing inbound play and held on for the win.
Finarelli finished with 14 points on the night. Nick Nocito hit four 3-pointers and led Dallas with 18. Jack Farrell also chipped in 13 points.
Zach Walsh had a game-high 23 points to lead North Pocono.