All Sim's oldest stock horse association.
| Name | Age | Color | Breed | Gender |
| S Peppys Whiz Man | 2012 | Red Dun Blanket | Appaloosa | Stallion |
| S Pesos Ojos | 2006 | Black Leopard | Appaloosa | Stallion |
| S Play It Foxy | 2008 | Chestnut | Quarter Horse | Mare |
| S Play Mate | 1999 | Palomino | Quarter Horse | Mare |
| S Play My Color | 2009 | Bay Tobiano | Paint | Stallion |
| S Play On Words | 2010 | Buckskin Fewspot | Appaloosa | Mare |
| S Playboy Invasion | 2011 | Chestnut | Quarter Horse | Stallion |
| S Playboys Pride | 1999 | Sorrel | Quarter Horse | Stallion |
| S Played With Color | 2006 | Buckskin Tobiano | Paint | Mare |
| S Player For Sure | 2006 | Black | Quarter Horse | Stallion |
| S Playin Classics | 2010 | Bay Tobiano | Paint | Stallion |
| S Playin Dominos | 1997 | Bay Tobiano | Paint | Mare |
| S Playin For Keeps | 2003 | Bay Tobiano | Paint | Stallion |
| S Playin My Hand | 2010 | Buckskin Overo | Paint | Mare |
| S Playin My Tune | 2008 | Buckskin | Quarter Horse | Stallion |
| S Playin The Game | 2011 | Sorrel | Quarter Horse | Mare |
| S Playin With Color | 2012 | Buckskin Tobiano | Paint | Mare |
| S Playin With Fire | 2012 | Buckskin Tobiano | Paint | Mare |
| S Playing The Game | 2010 | Bay Tobiano | Paint | Mare |
| S Please Be Detailed | 2015 | Chestnut | Quarter Horse | Stallion |
| S Please Be Dlux | 2005 | Black Tobiano | Paint | Mare |
| S Please Be Royal | 2002 | Chestnut | Quarter Horse | Stallion |
| S Please Be Rugged | 2010 | Black | Quarter Horse | Mare |
| S Please Be Steppin | 2011 | Chestnut Overo | Paint | Stallion |
| S Please Check Here | 2006 | Blue Roan Leopard | Appaloosa | Stallion |
| S Please Luke Here | 2013 | Grulla | Appaloosa | Stallion |
| S Please Step Aside | 2006 | Chestnut | Paint | Mare |
| S PleaseCheckMeOut | 2018 | Bay Roan Blanket | Appaloosa | Mare |
| S PleaseSendTheRansom | 2013 | Grulla Roan Blanket | Appaloosa | Mare |
| S Poco Dun Chexed | 2008 | Chestnut | Quarter Horse | Stallion |
| S Poco Gotta Gun | 2014 | Buckskin | Quarter Horse | Mare |
| S Poco Patsy | 2005 | Buckskin | Quarter Horse | Mare |
| S Pocos Never Played | 2012 | Bay Dun | Quarter Horse | Stallion |
| S Pocos Playin Games | 2009 | Black | Quarter Horse | Stallion |
| S Poker Chip | 2005 | Bay | Quarter Horse | Mare |
| S Pretty Dynamic | 2002 | Bay Roan | Quarter Horse | Mare |
| S Pretty In Roan | 2011 | Buckskin Roan Tobiano | Paint | Stallion |
| S Pretty Legendary | 2011 | Bay Roan | Quarter Horse | Mare |
| S Protect Dis | 2008 | Bay | Quarter Horse | Stallion |
| S Protection Detail | 2004 | Chestnut | Quarter Horse | Stallion |
| S Protective Lukin | 2008 | Bay Tobiano | Paint | Stallion |
| S Radical Melody | 2001 | Black Leopard | Appaloosa | Mare |
| S Raineyii | 2011 | Chestnut Blanket | Appaloosa | Mare |
| S Rebel Boys Only | 2009 | Bay | Quarter Horse | Mare |
| S Rebel Design | 2012 | Bay | Quarter Horse | Stallion |
| S Rebel Invitation | 2002 | Bay | Quarter Horse | Stallion |
| S Rebel Rouser | 2006 | Dun | Quarter Horse | Stallion |
| S Rebellious Zip | 2010 | Bay | Quarter Horse | Mare |
| S RequestingAnInvitation | 2014 | Palomino | Quarter Horse | Mare |
| S RequestingYourPresence | 2010 | Buckskin | Quarter Horse | Stallion |
| S RequestYourPresence | 2012 | Chestnut | Quarter Horse | Mare |
| S Reservations Only | 2008 | Bay Tobiano | Paint | Mare |
| S Robbie Knievel | 2004 | Bay | Quarter Horse | Stallion |
| S Rock Legend | 2012 | Red Dun | Paint | Stallion |
| S Rock The Ice | 2000 | Buckskin | Quarter Horse | Stallion |
| S RockinToTheBeat | 2014 | Buckskin | Quarter Horse | Stallion |
| S Rockstaar | 2002 | Bay Dun Tobiano | Paint | Mare |
| S Royal Arrogance | 2011 | Sorrel Tobiano | Paint | Mare |
| S Royal Picasa | 2008 | Buckskin Tobiano | Paint | Mare |
| S Royalty In Paint | 2010 | Chestnut Overo | Paint | Mare |
| S Rugged Blue Skys | 2010 | Gray | Quarter Horse | Mare |
| S Rugged Whiz | 2011 | Palomino | Quarter Horse | Mare |
| S Rush Hour | 2010 | Gold Cream Champagne | Quarter Horse | Stallion |
| S Sacred Lukin | 2002 | Bay Tobiano | Paint | Stallion |
| S Sacred Setback | 2010 | Buckskin Dun | Paint | Mare |
| S Sacred Step | 2006 | Bay Tovero | Paint | Stallion |
| S Sailor Girl | 2008 | Bay | Quarter Horse | Mare |
| S Sassy For Real | 2010 | Buckskin Tobiano | Paint | Mare |
| S Savoir Faire | 2006 | Buckskin | Quarter Horse | Mare |
| S School Of Rock | 2010 | Bay Tobiano | Paint | Stallion |
| S Scoot Scoot Whiz | 2012 | Buckskin | Quarter Horse | Stallion |
| S Scotch Branded | 2013 | Chestnut | Quarter Horse | Stallion |
| S Secret Agent | 2007 | Bay | Quarter Horse | Stallion |
| S Sgt Pepper | 2010 | Bay Tovero | Paint | Stallion |
| S Shake It Slow | 2005 | Black Blanket | Appaloosa | Mare |
| S Shake Rattle N Roll | 2010 | Chestnut | Quarter Horse | Mare |
| S ShakeYourBooty | 2015 | Chestnut Blanket | Appaloosa | Mare |
| S She Whiz Scary | 2011 | Bay Dun Tobiano | Paint | Mare |
| S Shesa Solid Ten | 2010 | Smoky Black | Quarter Horse | Mare |
| S Shesa Ten | 2006 | Buckskin | Quarter Horse | Mare |
| S ShesOffHerRocker | 2011 | Grulla Roan | Quarter Horse | Mare |
| S Shez Sucha Renegade | 2009 | Amber Cream Champagne Leopard | Paint Pony | Mare |
| S Shine On High | 2006 | Buckskin Roan | Quarter Horse | Mare |
| S Shine On Me | 2006 | Buckskin | Quarter Horse | Mare |
| S Shine So Bright | 2012 | Perlino | Quarter Horse | Stallion |
| S Shinin Pep | 2003 | Red Dun | Quarter Horse | Mare |
| S Shiny Little Pep | 2011 | Chestnut Splash | Paint | Mare |
| S Sign AtThe X | 2005 | Gray | Quarter Horse | Stallion |
| S Sign Language | 2004 | Bay Tobiano | Paint | Stallion |
| S Signature Art | 2008 | Buckskin | Quarter Horse | Mare |
| S Signature Needed | 2001 | Black | Quarter Horse | Mare |
| S Signature Required | 2010 | Bay | Quarter Horse | Stallion |
| S Signin All Fancy | 2006 | Chestnut Overo | Paint | Mare |
| S Signin Off | 2008 | Buckskin | Quarter Horse | Stallion |
| S Signin Out | 2013 | Bay Tobiano | Paint | Mare |
| S Silver Sunset | 2009 | Bay Dun | Quarter Horse | Stallion |
| S Sippin Champagne | 2000 | Amber Champagne | Pony of America | Mare |
| S Sippin OnThe Sauce | 2006 | Bay Roan | Quarter Horse | Mare |
| S Sittin Pretty | 2016 | Perlino Roan Tobiano | Paint | Mare |
| S Six Shooter | 2001 | Buckskin | Quarter Horse | Mare |
| S Six This | 2005 | Black Tobiano | Paint | Stallion |
| S Sizzlin Fire Side | 2002 | Grulla Roan | Pony of America | Mare |
| S Sizzlin In Gold | 2011 | Buckskin Roan | Pony of America | Stallion |
| S Sizzlin In Smoke | 2010 | Grey | Pony of America | Mare |
| S Skip The Dramatics | 2007 | Perlino | Appaloosa | Mare |
| S Skip The Dream | 2003 | Bay Leopard | Appaloosa | Stallion |
| S SkipThe Opening Act | 2009 | Chestnut | Quarter Horse | Mare |
| S Sky High | 2015 | Palomino Tobiano | Paint | Mare |
| S Sky Writer | 2009 | Buckskin Tobiano | Mustang | Mare |
| S Skys Blue Design | 2010 | Grey | Quarter Horse | Mare |
| S Skys Flashy Kid | 2006 | Palomino | Quarter Horse | Mare |
| S SlowGinFizz | 2011 | Bay | Quarter Horse | Mare |
| S Smart Ice Olena | 2008 | Bay Roan | Quarter Horse | Stallion |
| S Smart N Elite | 2002 | Chestnut | Quarter Horse | Stallion |
| S Smart N Smokin | 2005 | Bay | Quarter Horse | Mare |
| S Smoke Protection | 2005 | Black Tobiano | Paint | Stallion |
| S Smokin My Money | 2011 | Buckskin | Quarter Horse | Stallion |
| S Smokin Wildfire | 2006 | Dunalino | Pony of America | Stallion |
| S Sno Domino | 2002 | Bay Tobiano | Paint | Stallion |
| S SnoTimeLikeNow | 2013 | Bay Tobiano | Paint | Stallion |
| S So Charismatic | 2009 | Gold Champagne Blanket | Paint Pony | Mare |
| S So GoodImHot | 2014 | Chestnut Blanket | Paint Pony | Stallion |
| S So Goodit Hurts | 2006 | Amber Champagne Blanket | Paint Pony | Stallion |
| S SoBlueOverYou | 2014 | Blue Roan | Appaloosa | Stallion |
| S Song N Dance | 2012 | Bay Tobiano | Paint | Mare |
| S Sonnys Royal Comet | 2006 | Buckskin Tobiano | Paint | Mare |
| S Sonnys Wild Lynx | 2012 | Palomino | Pony of America | Mare |
| S Sophisticated Charge | 2010 | Blue Roan Blanket | Appaloosa | Mare |
| S Sorta Fictitious | 2007 | Bay | Paint | Mare |
| S Soxit To Me | 2005 | Bay | Quarter Horse | Mare |
| S Soxy Black Jax | 2009 | Palomino | Quarter Horse | Gelding |
| S Spark Of Insanity | 2011 | Perlino Champagne | Pony of America | Stallion |
| S Spark The Pep | 2008 | Chestnut | Quarter Horse | Mare |
| S Spent A Grand | 2003 | Bay Tobiano | Paint | Mare |
| S Spotlight Bound | 2010 | Chestnut Overo | Paint | Mare |
| S Spotted Dandy | 2007 | Palomino Tobiano | Paint | Stallion |
| S StandAndWorship | 2011 | Bay | Appaloosa | Stallion |
| S Standing Invitation | 2009 | Grey | Quarter Horse | Mare |
| S Star Crossed Lover | 2003 | Grey Blanket | Paint Pony | Mare |
| S Stepped In Bourbon | 2009 | Bay Overo | Paint | Mare |
| S Steppin Out | 2001 | Chestnut Overo | Paint | Mare |
| S SteppinUpTheClass | 2006 | Palomino Overo | Paint | Mare |
| S Stiff Drink | 2008 | Bay Tobiano | Paint | Mare |
| S Storm Breeze | 2011 | Chestnut Tobiano | Mustang | Mare |
| S Stunt Man | 2010 | Bay Roan | Paint | Gelding |
| S Super Nova | 2006 | Palomino Roan Leopard | Appaloosa | Stallion |
| S Sure Am Pretty | 2002 | Bay Tobiano | Paint | Mare |
| S Take A Spot | 2004 | Blue Roan Leopard | Appaloosa | Mare |
| S TakeIt ToThe Bank | 2008 | Bay Tobiano | Paint | Stallion |
| S Takin Names | 2007 | Chestnut Extended Snowcap | Appaloosa | Stallion |