Declan Richardson hat trick went into Pier's business as Ayton couldn't find a reply.
Richardson fired the pier early on, and he quickly doubled the tally in a quick, open-play, two seconds.
The striker then completed a hat trick and a scoring, passing the trophy midway through the second half.
Having sealed off last weekend's promotion, Heslerton tasted more success as he overcame Amotherby & Swinton Remerves to book his place in the Scarborough Junior Cup final.
The Bruce dominated the opening half, but only had a free kick for Morgan Kendrew for 40 yards.
As the wind swirled, the host pulled the level out of Oscar Johnson's wind assist corner and quickly took the lead from 35 yards with speculative effort.
Heslerton sent the match to penalty with Tom Stockdale scoring the 14th goal of the campaign, seeking an equalizer.
Simon Clark proved to be a visitor's hero, saving three Amosabee Spotkicks, and Gareth Driver and Stockdale converted to send the Sandrain Club to the Finals.
Current leaders Amotherby & Swinton ran out a comfortable winner in goal sports, relegated with four goals without replying.
Despite injuring Simon Coupland just 11 minutes later, Goal Sports produced a rough first half performance, and thanks to Conor Myerscoe's efforts, he took a ridiculous break in a bit.
It didn't take long to break deadlocks in the second half after Amosabee was hit by a mistake in the rear to double the visitor's lead after the evil bounce left the defense of goalsports to sea.
Two slow goals exacerbated the misery of goalsports when Amotherby completed the defeat.
The second-placed Wombleton Wanderers remain hot on Amotherby's heels after sending Treble Winners Rosedale 6-1 last season.
Dan Marshall and Jack Simpson both bagged braces for the hosts. Rosedale's only response came from Harry King.
In Division 2, Danby kept their slim promotion hopes alive with a 1-0 victory at Sinnington.
Kyle Clacherty scored the only goal of the game in Hour Hour Mark, returning from close range to Josh Grimley's cross.
As a result, they remain second, but one point above West Pier and Goldsborough.
Elsewhere in the Division, Slingsby completed the league season in style with a 5-1 victory over underground Rydale at Church Lane.
Anthony Cass and Rio Howden built a platform for the hosts, and Rydale halved the deficit through Brody Norton Hunter, but did not match the Slingbee bench with James Saudon, Trevarie and Steve Walker.
Away from the league, Lealholm Reserves ran out of Bagby & Balk winners at home in the first round of the Trophy & Print Cup.
The host had to wait until 70 minutes until he broke the deadlock, the only goal of the game from John Bentress.
