Game two of the series is scheduled for Tuesday at 5 p.m. in Digby Area Arena.
The Mariners earned their berth at Regionals by defeating Bridgewater Vikings in a best-of-three series.
Digby appeared to have won that series in two straight, but the second win Feb. 27 in Bridgewater was overturned, leaving the series tied at a game apiece.
It was an emotional victory March 3 for the Mariners who downed the visiting Vikings, 5-3. The win put DRHS in second place in the league, and the regional winner will move onto the provincial championships being held March 25-27.