Jordan Thomas slotted home the only goal of the game as Boston United were narrowly beaten at Spalding United.
A lively first half was followed by a much quieter second period - and just as the contest looked set to end goalless, the Tulips substitute fired home a matchwinning strike.
Manager Dennis Greene named a starting XI that again mixed first-teamers with trialists.
Former Nottingham Forest youngsters Karlton Watson and Danny Meadows, along with ex-Notts County midfielder Elliot Hodge, were given their chances to shine.
Julian Kelly - Spalding’s ex-Arsenal trainee - flashed a speculative effort wide of the Boston goal before United striker Dayle Southwell should have opened the scoring at the other end.
Latching onto a through ball his tight-angled effort beat Michael Duggan but flashed inches wide of the far post.
And that set the tone for the first half as the Pilgrims continued to dominate but saw chance after chance go begging.
Hodge had a clear sight of goal but his effort lacked the power and direction to beat the Tulips stopper, while Southwell saw two further efforts whizz off target - one a 20-yard half volley on the turn and the other a back post effort that fell to him at speed.
An outstretched leg defelected Scott Garner’s drive off target and when Carl Piergianni looked to have opened the scoring from a powerful header it took a less-than-convincing knee on the packed goalline to avert danger.
The Spalding team included former Pilgrims Chris Hall, Peter Bore, Kern Miller, Nathan Stainfield and Mark Jones.
And seconds after the break the Tulips created their best chance to date through Stainfield, but his header was well held by Sam Vince.
United’s response was swift and Garner, Southwell and Blake Thompson combined well before Jack Barlow curled his effort over the crossbar.
As the customary substitutions began to disrupt play, the action began to ebb and flow.
But with 79 minutes on the clock that changed as the home side took the lead.
On trial defender Adrian Grociak conceded possession on the edge of his own penalty area and Andrew Tidswell capitalised, charging to the flank and delivering a low cross which Thomas side-footed beyond the helpless Andy Hewitt.
As Boston looked for an equaliser Kaine Felix’s burst of pace ended with a 20-yard scooped effort which flew just over Duggan’s bar.
SPALDING: Michael Duggan, Peter Bore, Jamie Thurlbourne, Kern Miller, Nathan Stainfield, Lewis Webb, Julian Kelly, Michael Leary, Tom Waumsley (Jordan Thomas HT), Mark Jones (Andrew Tidswell 66), Chris Hall (George Stainfield 66).
UNITED: Sam Vince (Andy Hewitt 73), Zak Mills (Adrian Grociak 61), Duran Reynolds (Connor Smythe HT), Conor Marshall (Blake Thompson HT), Karlton Watson (Stefan Galinski HT), Carl Piergianni (Charley Sanders 61), Elliot Hodge (Kaine Felix HT), Danny Meadows (Michael Hollingworth HT), Scott Garner (Daniel Worthington 73), Dayle Southwell (Keiron Elliott 73), Jamie McGhee (Jack Barlow HT).
Referee: Alistair Wilson.