Trafalgar and Fylingdales beat FILO and Roscoes Bar to move into the last four of the Kenward Cup.
Trafalgar beat Division Two side FILO 4-1 after a closely-fought encounter.
Traf led 1-0 at the break, Billy Logan the man with the goal.
Player-boss Liam Salt made it 2-0 before Dan Brown gave FILO hope when he fired in to half the deficit.
Salt had other ideas though and soon made it 3-1 before completing his hat-trick to make it 4-1 and round off the scoring.
Dean Macauley was Traf's star man at right-back, while FILO boss Les Brown praised his entire side and felt his side deserved more.
"I can't fault any of the lads, we dug in and were the better team on the day and the scoreline flattered them," said Brown.
"Trafalgar may not agree, but a few dubious decisions have cost us."
Trafalgar will need to beat another Whitby-based side if they are to make the final, as they will tackle Fylingdales in the semis after their 7-0 win against Roscoes Bar.
Mikey Kilpatrick smashed in a hat-trick for John Cuffling's men and Barry Heyes fired in two.
Their other goals came from Sam Richardson, Callum Ogden.
Defender Ryan Cook was Dales' star man while Kipatrick and Paul Watson also stood out.
The other semi-final sees West Pier and Trafalgar Reserves lock horns.
In the only game in Division One, West Pier hammered Barrowcliff 11-1.
Paddy Parke's men led 5-0 at half-time, man of the match Rob Speight smashing in two and Martin Cooper, Ryan Baldry and Cameron Dobson all registering.
After the break Speight completed his hat-trick, Jonny Hyde netted a double and goals from young full-back Chris Mattinson, Sam Hyde and Kyle O'Toole rounded off the scoring.
Parke was forced into action as an emergency centre-back for the last 20 minutes and his blunder handed Barrowcliff a consolation goal.
Parke tried to dribble past Barrowcliff veteran Simon Young, but slipped and gave him the chance to fire in for Tony Walker's side.
The Pier player-boss singled out hat-trick hero Speight as his side's star man.
Trafalgar Reserves bossed their game against second-placed Ayton in Division Two, winning 7-1.
Two goals from the impressive Sam Pickard handed Mikey Barker's side a 2-0 lead at the break, and although Kieran Friett gave Ayton hope, Traf ran away with the game in the second half.
Pickard wrapped up his hat-trick and goals from Tom Scales, Andy Noon, Dan Glendinning and Luke Jones wrapped up a big win for the title-chasers.
Barker said: "We battered them, it was a comfortable win in the end. Sam Pickard and Luke Jones were brilliant up top for us."
Eric Hall was the star man as Newlands Reserves hammered Crown Tavern 8-1.
Hall smashed in four goals for Liam Mintoft's side, while Newlands' other goals came via Shem Atkinson, Aiden McCallion, an own goal and the goal of the game from Ryan Link, who smashed in from long range.
Atkinson was named as man of the match by Mintoft.
The two other games in Division Two were both postponed after Alma failed to raise a side for their game at Fylingdales Reserves and Scarborough Campus couldn't fulfil their fixture at Cayton.