| # | Name | Elo | Total | Country | Rank |
| 501. | satkul | 1628 | 4 |
|
Internat. Master |
| 502. | satrancmatik5 | 1817 | 10 |
|
Amateur |
| 503. | satyabhansoni | 1699 | 3 | Shooting Star | |
| 504. | saurabh19 | 2117 | 96 | Grandmaster | |
| 505. | schaakfanmark | 1985 | 19 | Shooting Star | |
| 506. | schachtom0815 | 1698 | 3 | - | |
| 507. | sdteser | 1590 | 3 | Internat. Master | |
| 508. | searun | 1595 | 1 | Amateur | |
| 509. | sefavar | 1656 | 2 | - | |
| 510. | selphi | 1616 | 1 | Master Candidate | |
| 511. | senk | 2850 | 625 |
|
Grandmaster |
| 512. | sevillachess | 1622 | 1 | Top Player | |
| 513. | shaashvatgupt | 2401 | 159 | Grandmaster | |
| 514. | shadowleaf04 | 1703 | 12 | - | |
| 515. | shah jihan | 1651 | 2 | Grandmaster | |
| 516. | shashini puvi | 3792 | 721 |
|
Grandmaster |
| 517. | sherwinjohn | 1579 | 1 | - | |
| 518. | shlok sharnarthi | 2530 | 206 | Grandmaster | |
| 519. | shravee2 | 1714 | 6 | Player | |
| 520. | shyam007rock | 1541 | 1 | Internat. Master | |
| 521. | siegfried27 | 1422 | 3 | - | |
| 522. | silent_knight123 | 1615 | 1 | Apprentice | |
| 523. | sillymove | 1391 | 2 |
|
- |
| 524. | sinjoor07 | 1586 | 4 | - | |
| 525. | skipper_chess | 1609 | 1 | - |
| # | Name | Elo | Total | Country | Rank |
| 526. | sknexus | 1594 | 3 | - | |
| 527. | smog | 2187 | 186 |
|
Internat. Master |
| 528. | soblahovan | 1471 | 2 | Beginner | |
| 529. | socrates2015 | 1549 | 1 | Top Player | |
| 530. | sonakshis | 1631 | 14 | Apprentice | |
| 531. | spiderman26dec | 2082 | 87 | Grandmaster | |
| 532. | sporty | 1911 | 82 |
|
Internat. Master |
| 533. | sprithviraj | 1682 | 11 | Strong Apprentice | |
| 534. | srikara11 | 1698 | 552 | Internat. Master | |
| 535. | srius | 1702 | 33 |
|
FIDE Master |
| 536. | stachuk | 1645 | 7 | FIDE Master | |
| 537. | stav1957 | 1583 | 2 | Club Champion | |
| 538. | stn028 | 1661 | 7 |
|
- |
| 539. | subham behera | 1599 | 2 | - | |
| 540. | sulfur64 | 1718 | 4 | - | |
| 541. | supreme_squadron | 1623 | 2 | World Champion | |
| 542. | surathw | 1655 | 3 |
|
- |
| 543. | suyashchess | 1618 | 2 |
|
Top Player |
| 544. | svmchessacademy | 1615 | 1 | Strong Amateur | |
| 545. | swarnendu | 1631 | 1 | Talent | |
| 546. | t#18#37 | 1684 | 6 | Strong Amateur | |
| 547. | talhofer | 2316 | 111 |
|
FIDE Master |
| 548. | tantris | 1605 | 1 |
|
Grandmaster |
| 549. | tata07 | 1622 | 1 | - | |
| 550. | tdantes86 | 1760 | 70 | FIDE Master |