Trevor Schroder led the way for Swan with 2 goals while 20 year old Tommy Cardinal chipped in with the other.
Mitchell Joss and Avery Smith replied for the Kings.
The Stampeders will continue their exhibition schedule as they go right back at it tonight (Wed) when they visit the Flin Flon Bombers with a 7:30 face-off at the Whitney Forum.
Other Junior A Preseason results:
Virden Oil Capitals 3 @ Portage Terriers 4 SO
Flin Flon Bombers 3 @ OCN Blizzard 5
Humboldt Broncos 3 @ Kindersley Klippers 4
Melfort Mustangs 2 @ Nipawin Hawks 3 (OT)
Weyburn Red Wings 3 @ Estevan Bruins 1