| NO | RATING | NAME | STATE | USCFID | EXPIRES | EVENTS |
| 1 | 1956 | Dennis P Saccuzzo | CA | 10489296 | Life | NATLOPEN-U2000 |
| 2 | 287/4 | Alex Safavi | CA | 14436760 | 04/11 | POLGAR-BU11 |
| 3 | 2331 IM | Anthony F Saidy | CA | 10439949 | Life | GAME10 |
| 4 | 2008 | Eric Haruji Sakurai | CA | 12537602 | 02/12 | NATLOPEN-U2200 |
| 5 | | Rafael Soto Salas | TX | | | POLGAR-BU11 |
| 6 | 1790 | Ronaldo Salenga | CA | 12554340 | 10/11 | NATLOPEN-U1800[2day,bye2] |
| 7 | 413/21 | Jorge A Salinas III | TX | 14142980 | 05/11 | POLGAR-BU14 |
| 8 | 1066 | Alice Salvaryan | CA | 13942363 | 06/11 | POLGAR-NONE[BLITZ] |
| 9 | 1066 | Alice Salvaryan | CA | 13942363 | 06/11 | POLGAR-GU11 |
| 10 | 1455 | Hovanes Salvaryan | CA | 13942342 | 06/11 | NATLOPEN-U1600 |
| 11 | 1775 | Tab E Salvo | CA | 12617054 | 06/11 | NATLOPEN-U1800 |
| 12 | 1455/10 | Alonzo M Sanchez | CA | 13480391 | 04/11 | NATLOPEN-U1600[2day] |
| 13 | 634 | Marcos Andres Sanchez | NM | 14111861 | 01/11 | POLGAR-BU8[BLITZ] |
| 14 | 2094 | Vanel Sanchez | UT | 12698315 | 04/11 | NATLOPEN-U2200[bye6] GAME10 |
| 15 | 1992 | Catalino Santos | CA | 13585436 | 12/10 | NATLOPEN-U2000[2day] |
| 16 | 1383 | Andrew Nicholas Santoso | CA | 14239963 | 08/10 | NATLOPEN-U1400 |
| 17 | 736 | Brian Santoso | CA | 14334640 | 01/11 | TROPHY-U800 |
| 18 | 1717 | Winston R Sapigao | NY | 12453876 | 06/11 | NATLOPEN-U2000 SIMUL-AKOBIAN |
| 19 | 1723 | John Sarracino | NM | 13094390 | 02/11 | NATLOPEN-U1800[2day,bye6] |
| 20 | 1537 | Michael Alexander Sauer | AZ | 13984868 | 04/11 | NATLOPEN-U1600 |
| 21 | 1507 | John M Scarbrough | TX | 12717028 | 08/10 | NATLOPEN-U1600 |
| 22 | 1548 | Cortez Schenck | AZ | 13716601 | 07/10 | NATLOPEN-U1600 |
| 23 | 1672 | Randolph Schine | CO | 12544184 | 01/11 | NATLOPEN-U1800 |
| 24 | 1300 | Roger C Schmidt | IL | 10359058 | Life | NATLOPEN-OPEN[u2100] SIMUL-AKOBIAN |
| 25 | 124/15 | Maxwell Schmitt | NV | 13467584 | 05/11 | TROPHY-U1200 |
| 26 | 2212 | Chad Schneider | NM | 12619094 | 12/11 | NATLOPEN-OPEN GAME10 |
| 27 | 1905 | Chad A Schneider | NM | 12619094 | 12/11 | BLITZ-OPEN |
| 28 | 1798 | Thomas George Schneider | WI | 13488287 | 06/11 | BLITZ-OPEN |
| 29 | 1798 | Thomas George Schneider | WI | 13488287 | 06/11 | NATLOPEN-U2200 |
| 30 | 1704 | Thomas Schucker | AZ | 12828665 | 03/11 | NATLOPEN-U1800 |
| 31 | 1511 | Randall N Sears | PA | 12053580 | Life | NATLOPEN-U1800 GAME10 SIMUL-AKOBIAN |
| 32 | 1847 | Raymond Seid | NV | 13654740 | 02/11 | NATLOPEN-U2000 |
| 33 | 1909 | Richard Seitz | IA | 12397468 | 03/11 | NATLOPEN-U2000 |
| 34 | 2073 | Phillip Seitzer | CA | 12687814 | 11/10 | NATLOPEN-U2200 |
| 35 | 1675 | Edward F Selling | NY | 10083711 | 03/13 | NATLOPEN-U1800 GAME10 BLITZ-U1700 |
| 36 | 1933 | Samir Sen | WA | 12970386 | 12/10 | NATLOPEN-U2200[bye5,6] |
| 37 | 2219 | Ilia Serpik | CA | 12602181 | 06/10 | NATLOPEN-OPEN |
| 38 | 768/11 | Marte Serrano III | AZ | 14439231 | 04/11 | POLGAR-BU11 |
| 39 | 2115 | Samuel Sevian | CA | 13493815 | 10/11 | NATLOPEN-OPEN |
| 40 | 1879 | Fernando Sevilla | CA | 12527407 | 04/11 | NATLOPEN-U2000[2day,bye6] |
| 41 | 700/13 | Julia Sevilla | CA | 14427395 | 04/11 | POLGAR-GU11[bye5] TROPHY-U800 |
| 42 | 2538 IM | Enrico Manalili Sevillano | CA | 12650696 | 12/10 | NATLOPEN-OPEN |
| 43 | 1858 | Pierce P Shaad | CA | 12515772 | 05/13 | NATLOPEN-U2000[2day] GAME10 SIMUL-AKOBIAN BLITZ-OPEN |
| 44 | 441/24 | Eric Shan | CA | 14270384 | 10/10 | POLGAR-BU8 |
| 45 | 1526 | George Shan | CA | 13666283 | 03/11 | POLGAR-BU11 |
| 46 | 1437 | Stephanie Shao | CA | 13970235 | 04/11 | POLGAR-GU14 |
| 47 | 1656 | Daniel Shaw | CA | 13159527 | 06/11 | POLGAR-BU19 |
| 48 | 1708 | John R Shaw | NC | 10132835 | Life | NATLOPEN-U1800 |
| 49 | 1794 | Joshua Sheng | CA | 13974250 | 05/12 | NATLOPEN-U1800[2day] |
| 50 | 1700 | Rick I Shepard Jr | CA | 10494079 | Life | NATLOPEN-U1800 |
| 51 | 1315 | Daniel Shevelev | AZ | 13563567 | 11/10 | POLGAR-BU11 |
| 52 | 1687 | Michael Shevelev | AZ | 12996305 | 11/10 | NATLOPEN-U1800 |
| 53 | 2280 FM | Macon A Shibut | VA | 10195624 | Life | NATLOPEN-OPEN |
| 54 | 945 | Serafina Show | CA | 13964624 | 04/12 | POLGAR-NONE[PUZZLE] CAMP-BOTH BREAKFAST |
| 55 | 945 | Serafina Show | CA | 13964624 | 04/12 | POLGAR-GU11 |
| 56 | 2182 | Erich Siebenhaar | DEU | 12741569 | 06/10 | NATLOPEN-U2200 GAME10 |
| 57 | 2232 | Gary Simms | TX | 10403227 | Life | NATLOPEN-OPEN |
| 58 | 1054/7 | John L Simpson | MA | 13216576 | 09/10 | CAMP-AM |
| 59 | 1285/25 | LeBron Sims | WA | 12661513 | 05/13 | NATLOPEN-U1400 |
| 60 | 2262 | Joshua Christopher Sinanan | WA | 12826891 | 02/12 | NATLOPEN-OPEN |
| 61 | 1487 | George Situ | CA | 13808861 | 02/12 | POLGAR-NONE[BLITZ] |
| 62 | 1487 | George Situ | CA | 13808861 | 02/12 | POLGAR-BU19 |
| 63 | 1625 | Cecil Sloan | GBR | 12821892 | Life | NATLOPEN-U1800 |
| 64 | 2262 FM | Gregg H Small | CA | 10228972 | Life | NATLOPEN-OPEN[bye4] |
| 65 | 2111 | Sylvester Smarty | OH | 12684922 | 11/11 | NATLOPEN-OPEN BLITZ-OPEN |
| 66 | 1716 | Aaron Smith | TN | 12851863 | 05/11 | NATLOPEN-U2000 BULLETINS |
| 67 | 1494 | Catherine M Smith | WA | 12699745 | 01/11 | NATLOPEN-U1600[bye6] |
| 68 | 994 | Garrison Joseph Smith | AZ | 14234217 | 07/11 | POLGAR-BU14 |
| 69 | 994 | Garrison Joseph Smith | AZ | 14234217 | 07/11 | TROPHY-U1200 |
| 70 | 1392 | George R Smith | NV | 10428599 | Life | NATLOPEN-U1600 |
| 71 | 1068 | James Kenneth Smith | OR | 13397942 | 03/13 | NATLOPEN-U1200[bye3] |
| 72 | | Bill Snead | TX | | | BULLETINS |
| 73 | 1462 | Danilo B Soriano | NV | 10341787 | 11/12 | GAME10 |
| 74 | 1182 | Abraham Speer | TX | 12961472 | 06/11 | POLGAR-BU14 |
| 75 | 846 | Jasmine Speer | TX | 12928495 | 06/11 | POLGAR-GU19 |
| 76 | 1915 | David E Spigel | NY | 10112621 | Life | NATLOPEN-U2000 GAME10 SIMUL-AKOBIAN |
| 77 | 1921 | Andrew Spore | PA | 12928555 | 03/11 | NATLOPEN-U2000 |
| 78 | 1737 | Tim J Stakland | UT | 12812568 | 02/11 | NATLOPEN-U1800[2day,bye5,6] |
| 79 | 977/10 | Brook O Stanford | NV | 12638866 | 06/11 | GAME10 |
| 80 | 1339 | Harrison Bevins Stanton | NV | 12975398 | 06/11 | POLGAR-BU19 TROPHY-U1800 |
| 81 | 1297 | Brian Starkes | CAN | 12576896 | 03/11 | NATLOPEN-U1400 BULLETINS |
| 82 | 1601 | Romallis T St Cyr | KY | 12499860 | 06/11 | NATLOPEN-U1800 |
| 83 | 1757/4 | Mark Edward Steffes | CA | 14221583 | 06/11 | GAME10 SIMUL-ZATONSKIH |
| 84 | 1772 | Daniel Steiner | CA | 12906255 | 05/12 | POLGAR-BU19 |
| 85 | 1662 | Wally Steinke | BC | 14209283 | 05/11 | NATLOPEN-U1800 |
| 86 | 1542 | Mark Stephenson | CA | 12428362 | 01/11 | NATLOPEN-U1800 BULLETINS |
| 87 | 2051 | Miomir Stevanovic | IL | 10352371 | 12/10 | NATLOPEN-U2200 |
| 88 | | Rhoades Stewart | NV | | | CAMP-BOTH |
| 89 | | Victory Stewart | NV | 14436870 | 04/11 | POLGAR-BU8 TROPHY-U800 CAMP-BOTH |
| 90 | | James Robert Stokes | MO | 14420412 | 03/13 | NATLOPEN-UNRATED |
| 91 | | James Robert Stokes | MO | 14420412 | 03/13 | SIMUL-ZATONSKIH |
| 92 | 2016 | Scott Jay Stoudt | IA | 12401730 | 07/12 | NATLOPEN-U2200 |
| 93 | 1702/18 | Andrew J Strom | WA | 12738070 | 06/11 | NATLOPEN-U1800[2day] |
| 94 | 740/7 | Rick Sun | AZ | 14444430 | 05/13 | POLGAR-BU8 TROPHY-U800 |
| 95 | 136 | Allison Jean Sussman | IL | 13591314 | 11/10 | POLGAR-GU11 |
| 96 | 136 | Allison Jean Sussman | IL | 13591314 | 11/10 | POLGAR-NONE[PUZZLE] |
| 97 | 1803/4 | Antonio Arturo Swatts | AZ | 14345916 | 01/12 | NATLOPEN-U2000[2day] |
| 98 | | Audrey Sweten | | | | BREAKFAST |
| 99 | 163/6 | Audrey Jolee Sweten | AZ | 14396741 | 03/13 | POLGAR-GU8 TROPHY-U800 |
| 100 | | Lorri L Sweten | AZ | 14427510 | 04/13 | NATLOPEN-UNRATED[bye4] |