Ben Kelly and Ashley Gardner were the top scorers in this latest victory.
Port St Mary have put in a number of notable performances in the Winter Indoor League so far this season and Douglas were the victims this time around.
Their strength in depth - 16 shooters in total - meant PSM won all three divisional matches with one uncontested.
Derek Kermode matched his daughter Gemma's 97 for Laxey, meanwhile, so those bragging rights will have to keep for another week!
Sharon Drysdale was top gun for the visitors with a near-perfect 99 in the Division One match with Matthew Roosen, released from his stint preparing for computer duties at the Easter Shoot, chipped in with a tidy 98.
Port St Mary IOMSC Douglas
Division One
99 Ben Kelly Sharon Drysdale 99
99 Ashley Gardner Matthew Roosen 98
98 Paul Clague Christian Eaton 97
98 Callum Grant Mark Osborn 95
97 Rhys Keown Nick Brown 95
491 484
Division Two
97 George Dalton-Brown David Humphrey 94
97 Derek Kermode Sam Jones 94
96 Greg Beard Paul Perkins 91
95 Ryan Forrest Matthew Humphrey 90
96 Kevan Kneale Keith Lowney 83
481 452
Division Three
95 Eddie Maddrell
94 Juan Clague
91 Gary Knight
91 Sue Keown
90 Ean Brewis
461
Additional shooters
89 Peter Lewis
Kirk Michael get the drop on Laxey
Kirk Michael notched a surprising win over Laxey with this victory, their third of the league campaign. Both teams were depleted, with Laxey missing John Wood while Beth and Alisha Gale were unavailable for the home side. Perryn Watson maintained her recent run of good form with a 98 while Commonwealth Games-bound Gemma Kermode was Laxey's top scorer with 97.
Kirk Michael put in some solid scores with Alex Trafford and Suzanne McKnight on 97 while Kevin Quinn continued his recovery from illness with a solid 95. Andrew Jessop notched a 96 and Bridget Kneale will have been pleased with her useful 91 in the final detail of the night.
Kirk Michael Laxey
Division One
98 Perryn Watson Gemma Kermode 97
97 Suzanne McKnight Harry Creevy 96
97 Alex Trafford Andrew Jessop 96
95 Kevin Quinn Gary Kneale 92
94 Noah Mayne Stephen Curphey 91
481 472
Division Two
93 Colin Watson Bridget Kneale 91
93 91
Castletown put Sandsiders to the sword
Andy Traynor was the top scorer for Sandsiders with a 99 but it was all a bit "Rorke's Drift" for the home side as Castletown rocked up at the Sinclair Range with 15 shooters and took the points by a big margin.
Nigel Christian hit a 98 to lead the way for the visitors.
IOMSC Sandsiders Castletown
Division One
99 Andy Traynor Nigel Christian 98
94 Anthony Kneale Mark Shimmin 97
94 Steve Callus Richard Arthur 96
93 Greg Wyatt John Paul Bridson 96
89 Norman Ormrod John Brewis 96
469 483
Division Two
Ian Arthur 96
Robin McFee 94
Henry Qualtrough 93
Steve Gardner 92
` Andy Bell 92
467
Division Three
Lawrie Cooper 91
Shirley Caley 91
Reg Caley 91
Rhian Masson 86
Neil Masson 83
449
More joy for Castletown as they were the winners of the recent Knock-Out Cup held at Port St Mary's range. Just three teams took part, though, which made it a somewhat disappointing spectacle.
Team Castletown
John Brewis 97
John Paul Bridson 96
Nigel Christian 98
Robin McFee 97
488
IOMSC Team Douglas
Matthew Roosen 93
Nick Brown 93
Paul Perkins 88
Sharon Drysdale 96
470
Team Port St Mary
Sue Keown 92
Rhys Keown 93
Gary Knight 96
Ashley Gardener 98
479
NSRA News
The Isle of Man's Junior County Team lost out to Sussex Country SBRA 'A' by just two points (383 to 381) in Division one, round three. IOM scores were: Christian Eaton 98; Sam Jones 96; Callum Grant 94; George Dalton-Brown 93.