Matt Trimble kept the Bellevue (21-17) off the board during his seven innings of work and the Douglas (17-14) beat the Bellevue, 1-0.
Trimble struck out seven and allowed no walks and five hits.
A bright spot for the Bellevue in the defeat was Nick Kiel, who allowed only one run while striking out seven.
Kiel was charged with his third loss of the year.