A last-gasp header from Laurence Harvey gave Canterbury City a thrilling 4-3 victory over K Sports on a day of high drama in the Buildbase FA Vase first round proper.
K Sports thought they had snatched a late equaliser through defender Liam Dawson as the visitors clawed their way back from 1-0, 2-1 and 3-2 down.
But the Southern Counties East League side would provide one last surprise as they progressed to the second round thanks to Harvey's 92nd minute header.
There were plenty of seven-goal thrillers as the competition saw no fewer than eight 4-3 scorelines on a frantic Saturday of football.
Worcester City, who once knocked out Coventry City in the Emirates FA Cup, had to hold on against Sherwood Colliery after a brace from Jamie Smith and strikes from player-manager Lee Hughes and Dave Reynolds had given the hosts a commanding lead.
London Colney and Cogenhoe United will have to do it all again on Tuesday night after an enthralling 4-4 draw at Cotlandswick Park.
After finishing 2-2 at the end of normal time, Cogenhoe striker Ryan Dove netted two extra-time goals to add to his one in normal time as he rounded off his hat-trick.
But the hosts came back as first Laurence Vaughan netted and then Wilson Ferreira scored directly from a corner to level things up and force a replay.
AFC Wulfrunians will also have to go again on Tuesday as they were held 1-1 by Leicester Nirvana.
Mitch McDonald’s second-half effort had the home side in front but Jordan Nelson levelled meaning the pair will go again at Hamilton Park.
Elsewhere, there was to be no cup upset for Westella & Willerby as they were swept aside by four-time Buildbase FA Vase champions Whitley Bay 5-1 on their opening appearance in the first round proper.
Strikes from Tom Potter, Peter Glen-Ravenhill, Josh Nearney, Alex Kempster and Scott Jasper proved too good for the first-round debutants.
Winners of the trophy in 2015, North Shields, got their campaign off to a flyer as they were too good for Hansword PFC.
Dean Holms and Paul Robinson gave Shields the advantage but they were pegged back by Jonathan Froggatt and Jonathan Hill.
But a Gareth Bainbridge brace inside the last 10 minutes meant it was upset avoided for North Shields.
Sunderland Ryhope CW FC went goal crazy as they demolished Harrogate Railway Athletic 10-1 to advance into the next round.
Elsewhere there were big wins for Epsom & Ewell, who prevailed 7-2 over Rushtall, and Willand Rovers who downed Street FC 7-1.
On Sunday, Carl Mullins was the extra-time hero for Enfield 1893 as they booked their place in the Second Round with a 1-0 win over Coggeshall Town.
Luke Thomas fed Mullins on the right-hand side of the penalty area who slid the ball past the goalkeeper to seal their spot in the next round.
Eynesbury Rovers were knocked out 2-0 by FC Romania. Florin Pop gave the hosts the lead after 36 minutes with Mihai Botosan grabbing the second in the final moments.
