| # | Name | Elo | Anzahl | Land | Rang |
| 501. | chessplayer9 | 2504 | 15109 |
|
Grandmaster |
| 502. | chessplayertwo | 2094 | 6335 |
|
Tactics Master |
| 503. | chessplayerx | 2472 | 18846 | Internat. Master | |
| 504. | chesspreparation | 2600 | 13968 | Grandmaster | |
| 505. | chessq | 2410 | 1202 | Shooting Star | |
| 506. | chessqueenc5 | 2380 | 1544 | Shooting Star | |
| 507. | chessrenaiss | 2633 | 4179 | Grandmaster | |
| 508. | chesssonu25 | 2315 | 451 | Talent | |
| 509. | chessstar17 | 1842 | 16 | - | |
| 510. | chessufix | 2154 | 4981 | Master Candidate | |
| 511. | chesswagner | 2181 | 2658 | Club Champion | |
| 512. | chesswizard | 2765 | 15303 |
|
World Champion |
| 513. | chetankhatri | 2402 | 2728 | FIDE Master | |
| 514. | chichi | 2034 | 612 |
|
Player |
| 515. | chico59 | 2419 | 5130 |
|
Internat. Master |
| 516. | chinoverme | 2238 | 30959 | Master Candidate | |
| 517. | chirojoe | 2265 | 12629 | Master Candidate | |
| 518. | chma | 2241 | 894 | Shooting Star | |
| 519. | chocolataace2002 | 2180 | 137 |
|
Strong Amateur |
| 520. | chogori8611 | 2293 | 510 | Talent | |
| 521. | chongcy | 2790 | 4781 | World Champion | |
| 522. | choppa nutta | 2203 | 1720 | Shooting Star | |
| 523. | chpalaiok | 2500 | 2127 |
|
Top Player |
| 524. | chrisakin | 2445 | 336 |
|
Strong Amateur |
| 525. | chrisbrinker | 2362 | 61829 | FIDE Master |
| # | Name | Elo | Anzahl | Land | Rang |
| 526. | chrismaberg | 2081 | 2648 | Top Player | |
| 527. | christ29 | 2159 | 8028 | Master Candidate | |
| 528. | christian 1960 | 2449 | 48278 | Internat. Master | |
| 529. | christian zülli | 2619 | 2305 |
|
Top Player |
| 530. | christoph_jugendwart | 2400 | 252 |
|
Amateur |
| 531. | chrisuhrig | 2667 | 2661 | - | |
| 532. | chromecherry | 1804 | 63 | Beginner | |
| 533. | ciaoberti | 3395 | 5387 | World Champion | |
| 534. | cibs | 1500 | 6277 | Club Player | |
| 535. | cimetière hervé | 1822 | 173 | Strong Amateur | |
| 536. | ciriello | 2231 | 92047 |
|
FIDE Master |
| 537. | citron26 | 2147 | 1054 | - | |
| 538. | clauberfm | 1758 | 11 | - | |
| 539. | claudiochess | 2142 | 408 | Talent | |
| 540. | claudiov | 2162 | 1861 |
|
Club Champion |
| 541. | clemens hitsch | 2171 | 38549 | Master Candidate | |
| 542. | clementstjo | 2121 | 91 | Amateur | |
| 543. | clochefinie | 2022 | 79 | Beginner | |
| 544. | clusii | 2219 | 221255 | Master Candidate | |
| 545. | cmbalbuena | 2156 | 653 | Apprentice | |
| 546. | cmtpamba | 2440 | 73972 |
|
Internat. Master |
| 547. | cneeal | 2485 | 1552 | Shooting Star | |
| 548. | coachyogesh | 2073 | 51 | - | |
| 549. | codeam | 2153 | 1543 |
|
Shooting Star |
| 550. | codevil_797 | 2003 | 324 | Strong Apprentice |