Sion Mills and Letterkenny had to take part in a second bowl-out after their first one on Saturday was ruled null and void by the NW.
The original bowl-out was won by Letterkenny but there was a dispute over the result and the NW ordered it to be re-held as it didn't follow the correct protocols set by the Union.
Strabane was the venue on Wednesday night and this time Sion Mills emerged victorious, winning 2-0.
They will now play Donemana II on Saturday, while Letterkenny face Glendermott.
The latter two sides were due to meet on Wednesday in the Midweek Cup, but it was rained off and will now be held next week.
Friday night sees the Final and Plate finals of the T10 Senior Championship.
Brigade and Newbuildings meet at Beechgrove, while Bready take on Fox Lodge in the Plate. Both games start at 6.30pm.