| Username | Title | Posts | Registration date |
|---|---|---|---|
| shredator | Paddock Rat | 94 | 2011-10-15 |
| shredjesse | Rookie Driver | 0 | 2023-12-02 |
| Shrek loves Racing | Rookie Driver | 1 | 2018-09-05 |
| shrimpandboots | Ripened Lemon | 101 | 2009-06-08 |
| shriurs | Rookie Driver | 3 | 2010-04-27 |
| shrttrackr | Rookie Driver | 16 | 2010-04-18 |
| Shvacactus | Rookie Driver | 0 | 2019-10-15 |
| Shvd_Box | Paddock Rat | 94 | 2010-04-14 |
| sickmint79 | Rookie Driver | 1 | 2015-04-20 |
| Sideways | Paddock Rat | 33 | 2009-05-04 |
| sidewaysalfa | Rookie Driver | 4 | 2011-12-05 |
| sidsthekid678 | Rookie Driver | 0 | 2018-08-14 |
| sighting | Rookie Driver | 8 | 2018-11-20 |
| sikemata | Paddock Rat | 23 | 2012-03-26 |
| silpisayz | Rookie Driver | 2 | 2013-07-05 |
| Silva | Rookie Driver | 0 | 2021-05-27 |
| Silver Ghost | Rookie Driver | 2 | 2020-06-30 |
| silverap1 | Rookie Driver | 1 | 2012-01-10 |
| silverb42 | Rookie Driver | 0 | 2018-11-14 |
| Silverback | Rookie Driver | 0 | 2019-04-27 |
| silverbullitt850 | Rookie Driver | 2 | 2018-10-29 |
| SilverSlug | Rookie Driver | 1 | 2023-10-16 |
| SILVERSOLSTICE | Rookie Driver | 11 | 2012-02-21 |
| Silvir05 | Rookie Driver | 2 | 2013-05-11 |
| simonmholland | Rookie Driver | 1 | 2019-09-10 |
| SimplyKC | Paddock Rat | 41 | 2010-06-19 |
| simply_rotate | Rookie Driver | 1 | 2015-03-23 |
| simpson.levib | Rookie Driver | 1 | 2020-11-24 |
| simpsonian | Rookie Driver | 14 | 2009-05-22 |
| sindersblue | Rookie Driver | 5 | 2010-04-19 |
| singleslammer | Rookie Driver | 2 | 2012-02-07 |
| sinithandegore | Rookie Driver | 0 | 2023-12-02 |
| sinrok | Rookie Driver | 0 | 2023-09-10 |
| Sir Thomas Crapper | Lemons Staff Stalker | 3,251 | 2009-12-22 |
| Sirdeuce | Rookie Driver | 2 | 2012-04-11 |
| sirkraven | Paddock Rat | 30 | 2013-03-26 |
| sisigrider | Rookie Driver | 7 | 2020-02-10 |
| sixdown | Rookie Driver | 0 | 2019-04-09 |
| SixSpeedJim | Rookie Driver | 0 | 2020-06-20 |
| si_schafer | Rookie Driver | 2 | 2015-04-27 |
| sjflaten | Rookie Driver | 1 | 2017-04-09 |
| sjgonyea | Rookie Driver | 0 | 2023-11-02 |
| sjm | Rookie Driver | 6 | 2013-03-24 |
| sjoblom | Rookie Driver | 19 | 2020-02-06 |
| sjracer12 | Rookie Driver | 1 | 2018-08-25 |
| sjryanconstruction | Rookie Driver | 2 | 2014-08-25 |
| SK8BRD | Rookie Driver | 3 | 2013-03-22 |
| sk8freak176 | Rookie Driver | 3 | 2014-01-28 |
| Sk8rSeth | Rookie Driver | 1 | 2018-08-03 |
| skalskia | Rookie Driver | 3 | 2017-02-16 |