The London Lightning is the new NBL Central Division Champions after eliminating the Windsor Express 112-100.
At half-time, the Lightning had the lead 58-43.
The Express were in a do or die situation heading into game four at the Atlas Tube Centre in Lakeshore with the first three games of the series going to London.
London now plays either the Halifax Hurricanes or the Island Storm in the NBL Canada Finals.
Halifax won game four against Charlottetown 105-90 Saturday.