Boston United fell to a 1-0 defeat at home to Guiseley in the Skrill North.
The Pilgrims were undone just before half-time when Danny Forrest smashed in a shot from distance off the inside of the post.
Boston responded in the second half, and threw everything they had at the Lions, but they could not break them down.
The Pilgrims had to weather a storm of attacks from the Lions, but their defence was holding firm.
The pressure finally got to them just before the break as Danny Forrest smashed an effort that clipped the post and went in.
It made amends for Guiseley who saw Rothery’s effort from the penalty spot saved by King after Pilgrims skipper Ross had hauled down Holdsworth in the area.
There was an early scare for Boston as Guiseley applied the pressure and on three minutes snapped a shot across the face of the Pilgrims goal.
On five minutes Marrs had to come to the rescue to cut in and deny Alex Johnson from just inside the penalty area.
The ball was not cleared and Guiseley followed it up with another drilled low effort that was blocked.
On 11 minutes, Danny Forrest whipped in a cross come shot which was deflected wide for a corner.
A free-kick to Guiseley was lofted in by Boshell and Forrest leaped up to beat his marker and head the ball to the bottom corner. King read it well and got down to collect the ball on 15 minutes.
Boston’s first real attack came on 18 minutes. Ian Ross and Marc Newsham linked up to send the ball out wide to Conor Marshall and he whipped the ball across the face of goal, but nobody was there to get the killer touch and steer it home.
Guiseley hauled themselves back in the game and on 25 minutes Carl Piergianni put in a brilliant tackle to deny Johnson at close range.
The resulting ball dropped for Danny Boshell and his vicious shot was blocked.
Guiseley had a brilliant chance to take the lead on 33 minutes. The ball was fed in to Johnson. Under pressure from Scott Garner, he was stretching to pull his shot around King, but the Boston stopper managed to get the block in to deny him.
Boston threatened on 38 minutes. Ian Ross’s free-kick from the left was met by Piergianni and his header was comfortably met by Steven Drench in the Guiseley goal.
Guiseley were gifted the chance to take the lead on 43 minutes when Ross hauled down Holdsworth in the area.
Rothery stepped up and fired a shot to the right of King, but the stopper had judged it well and pulled off a fantastic save to push it round the post.
Guiseley did take the lead on 45 minutes when Johnson pulled the ball back for Forrest and he smashed a shot which clipped the inside of King’s left-side post and went in.
After the restart, Boston came out fired up and the first 10 minutes saw them finally get their foot on the ball.
They forced their way down the flanks, with Steer and Hall both pulling in dangerous crosses.
On 58 minutes Ricky Miller cut in towards the box, but his left-foot effort was wide of the post.
On 63 minutes, Jake Hall was replaced by Ben Milnes.
A brilliant bit of play from Weir-Daley on 66 minutes saw the forward beat two players and with goalkeeper Drench chasing him down, he turned and crossed, but it was cleared in the scramble.
Weir-Daley followed it up with another shot, but it was lacking pace and Drench collected comfortably.
Seconds later Weir-Daley burst through into the box and under pressure he smashed his effort over the bar.
Miller was replaced on 73 minutes by Sanders as Boston looked to try and give another option going forward.
Boston had maintained the pressure, but Guiseley broke forward on 78 minutes. The ball was played out wide to Hobson and Garner clattered him on the edge of the area to earn himself a yellow and give the hosts a free-kick. The resulting delivery went wide over the ball.
On 82 minutes Conor Marshall was replaced by Stefan Galinski as Pilgrims boss Dennis Greene made his final change of the afternoon.
It saw Garner pushed forward as the Pilgrims attempted to cause more problems for Guiseley.
It was the Lions who reacted though and Hobson was sent clear and it needed a brilliant tackle from the onrushing King to deny him on the edge of the area.
Boston applied the pressure and put Guiseley on the wrack as the hosts desperately clung onto their lead in the four minutes off additional time.
A series of corners eventually saw the ball fall to Galinski on the edge of the area and his powerful shot was collected at the post.
Boston United made one change from the side which knocked Southport FC out of the FA Trophy last weekend.
Boston boss Dennis Greene reverted back to a 4-3-3 formation for the Skrill North clash at Nethermoor Park. Defender Stefan Galinski dropped to the bench to be replaced with Spencer Weir-Daley brought back into the attack.
Teenage goalkeeper Sam Vince was also replaced, with first choice Lewis King taking up the role in the goal. Vince had been brought in for the trip to Southport after King was cup tied.
Both sides headed into the match on the back of some strong form. Boston United had managed five games unbeaten, while Guiseley have managed a six game unbeaten run in the league which included four wins.
Boston United (4-3-3): King; Marrs, Garner, Piergianni, Steer; Marhsall, Ross (cpt), Hall; Miller, Newsham, Weir-Daley. Subs: Aujla, Milnes, Sansara, Sanders, Galinski.
Guiseley: (4-2-3-1): Drench; Holdsworth, Lockwood, Hall; Meynell; Rea, Boshell; Brooksby, Forrest, Rothery; Johnson. Subs: Lawlor, Potts, Hobson, Parker, Dickinson.