Charley Sanders struck twice while Lewis Sturman, Jordan Nuttell and Jake Beauchamp were all on target too as Boston United thumped Mickleover Sports.
The Pilgrims were in full control before half-time, although Sanders’ 33rd minute strike was all the visitors had to show for their efforts at the break.
The floodgates opened after the interval though with Sturman doubling United’s lead just past the hour mark, before strikes from Nuttell, Sanders and Beauchamp sealed Boston’s deserved passage into the second qualifying round, where they will meet Nottinghamshire-based outfit Pinxton.
Showing an unchanged starting XI from the one which had defeated Lincoln United in the previous round, Steve Welsh’s only alteration was on the bench where fit-again Joe Briers replaced Sam Towell.
The Pilgrims created 10 noteworthy chances during an industrious first half display — seven of which unfolded before Sanders struck to give United the lead.
Sanders had an early effort gathered by Luke Abbott following Stuart Whitaker’s left-wing cross, while Whitaker himself volleyed over the bar from 20 yards when a shooting opportunity presented itself.
Elliott Price saw a near post drive beaten to safety by Abbott, James Tricks headed over the top following Charlie Rossington’s inviting cross and Beauchamp whistled an effort too high from 25 yards.
Price produced quick feet to skip into space, but drilled over from 20 yards, while James Reed went ever closer with a silky outside-of-the-foot effort which flew wide following Beauchamp’s defence-splitting pass.
United’s breakthrough arrived on 33 minutes. Beauchamp delivered a pinpoint free-kick delivery from the right, Nuttell nodded the ball down and SANDERS lashed home from close-range.
Further untaken chances fell to Sturman and Tricks before the break, while full-back Niall Delahoy was denied by Abbott, at his near post, in the opening stages of the second half.
Abbott made an instinctive save with his legs to keep out a Sanders drive, but United were soon two goals to the good.
Reed’s deep 61st minute corner was headed down by Nuttell and STURMAN swept the loose ball home from six yards out.
Boston inflicted further damage six minutes later. Reed delivered another corner delivery and NUTTELL buried a firm header past an exposed Abbott.
Seventy minutes were on the clock when United added their fourth. Substitute Briers’ deep cross was returned by Reed and SANDERS had the simple tasking of applying the finishing touch from four yards.
Midfielder BEAUCHAMP got in on the act three minutes later by firing home an unstoppable free-kick from 25 yards.
There was still time for Briers to gallop clear to provide Sanders with a hat-trick chance — but the in-form striker produced an extraordinary miss from a matter of inches as the ball looped into the arms of a seemingly-stranded Abbott.
Mickleover mustered their only shot on goal with a minute to play — but Ross Simms’ long-range effort cleared Marc Hipwell’s crossbar.
Mickleover (4-4-2): Luke Abbott; Kyle Hudson, Gus Williamson, Jaskaran Beesla, Sam Walker (Harry Barker 46); Tom Bellini, Josef Koscinski (Yacoub Mollay 46), Craig Heaton (Kulvir Johal 80), Alan Horton; Ross Simms, Ben Osbourne. Subs (not used): Oliver Baugh, Evan Rayner.
Boston (4-4-2): Marc Hipwell; Niall Delahoy, Lewis Sturman, Jordan Nuttell, Charlie Rossington (Todd Devlin 66); James Reed, Elliott Price (Jake Platten 73), Jake Beauchamp Stuart Whitaker (Joe Briers 60); Charley Sanders, James Tricks. Subs (not used): Scott Langan, Alex Marr.