A sensational spell of bowling from skipper Andy Carrington propelled Louth First XI to back-to-back wins and seventh place in the Lincolnshire ECB Premier.
With Grantham 162-5 chasing 197 to win, the odds of a Louth victory were slim, but the returning Carrington, bowling down the slope, had other ideas.
He removed opposing skipper Nurse with his first ball, courtesy of a sharp catch by Amila Weththasinghe and then took the edge of the new batsman with his next ball, wicketkeeper Graham West taking the catch.
The hat-trick ball was narrowly avoided but it was a small reprieve as Carro trapped the batsman plumb LBW next ball.
Carrington continued to threaten with every ball and soon after removed Brumby with a nasty lifting delivery which took the batsman’s glove and West took a stunning one-handed diving catch.
The final batsman’s defences were quickly breached to seal a result which had seemed highly unlikely only 20 minutes before.
Louth had earlier posted a competitive total on a wicket with variable bounce. Amila topped scored again with 58 and was well supported by Matt Hamilton (32) who stroked the ball around fluently until an unfortunate run-out mix-up.
West (21) and Nick Keast (19 not out) added valuable quick runs later in the innings which had started solidly and built momentum.
The Grantham reply was opposite in approach as Lincolnshire County player Bansal attacked from the outset.
Runs flowed, but so too did wickets as Amila took 4 for 54 in another spell of aggressive seam bowling, including the dangerous Webb, with Richard Limmer taking a great catch at extra cover.
The key wicket of Bansal (49) fell to man of-the-match Carrington who finished with 6 for 46.
On Saturday, Louth host third-placed Market Deeping at London Road. The club would like to thank its sponsors the Lake Family and Kenwick Park.