Springfield hang on to beat McDonald, 48-44, on Tuesday night.
Ron Rogers was the leading scorer for the Tigers with 11 points.
The Blue Devils' Matt Seitz led the way with 19 points.
Springfield improves to 18-2 and will face the winner of the Waterloo/United game on February 29 at 8 p.m.
McDonald will play the winner of the Bristol/Lordstown game on March 2 at 7:30 p.m.