| # | Name | Elo | Anzahl | Land | Rang |
| 351. | billspy | 2064 | 6525 | Master Candidate | |
| 352. | billubadmoshi | 2022 | 78 |
|
Beginner |
| 353. | billymatcha | 1664 | 5 | - | |
| 354. | bimbel | 1743 | 8 | - | |
| 355. | bindu333 | 1963 | 2466 | Club Champion | |
| 356. | binod gyanwali | 2528 | 17677 | Grandmaster | |
| 357. | bioly | 2449 | 106152 | Internat. Master | |
| 358. | biomagus | 2399 | 1229 |
|
- |
| 359. | birincibar1s | 2260 | 205 |
|
Amateur |
| 360. | bishop93 | 2102 | 518 | Talent | |
| 361. | bismillah_faqiri | 2191 | 1072 |
|
Shooting Star |
| 362. | bissig82 | 2163 | 20041 |
|
Master Candidate |
| 363. | bizonho | 2237 | 3724 |
|
FIDE Master |
| 364. | blackavenger | 2159 | 23749 |
|
Club Champion |
| 365. | blackjacket | 2192 | 3345 | Top Player | |
| 366. | blackvulture | 2324 | 410 | Strong Amateur | |
| 367. | blauer reiter | 2534 | 110317 | Grandmaster | |
| 368. | blommaertjc | 2514 | 7762 | Internat. Master | |
| 369. | bloodblade59 | 2415 | 41416 | Internat. Master | |
| 370. | bloody_hunter 1 | 1840 | 41 | Beginner | |
| 371. | bluebishop | 1629 | 6 |
|
- |
| 372. | bluelion | 2310 | 32243 | FIDE Master | |
| 373. | bluesoniq | 2090 | 3320 |
|
Club Champion |
| 374. | blumenstiel | 2987 | 4163 | World Champion | |
| 375. | blunderyu | 1806 | 10 | - |
| # | Name | Elo | Anzahl | Land | Rang |
| 376. | bmatt | 1840 | 1846 | Attacking Player | |
| 377. | boardmember | 2331 | 29664 |
|
FIDE Master |
| 378. | boax_j | 1709 | 11 |
|
- |
| 379. | bobblomquist | 2109 | 8868 | Top Player | |
| 380. | bobby62 | 1885 | 26991 | Experienced Player | |
| 381. | bobbyrob | 2352 | 220 | Amateur | |
| 382. | bobc | 2252 | 7718 | FIDE Master | |
| 383. | boby mooser | 2189 | 562 | Talent | |
| 384. | bobyfi | 2504 | 550 | Beginner | |
| 385. | boddah14 | 1850 | 126 | Strong Amateur | |
| 386. | bodychess1 | 2336 | 260 | - | |
| 387. | bogomudd | 2533 | 4556 | Internat. Master | |
| 388. | bohenriksen | 2586 | 26105 | Grandmaster | |
| 389. | bohlander | 1619 | 10 | - | |
| 390. | bohus | 2566 | 1960 | Club Champion | |
| 391. | boiler874 | 2262 | 21618 |
|
FIDE Master |
| 392. | bolan | 2365 | 42643 |
|
FIDE Master |
| 393. | bolllothar | 2160 | 3869 | Master Candidate | |
| 394. | bonetti | 2213 | 8924 | Master Candidate | |
| 395. | bongiorni | 1627 | 5 | - | |
| 396. | boris0904 | 2173 | 271 | Apprentice | |
| 397. | borisbv | 2606 | 1255 |
|
- |
| 398. | borissidorenko7 | 2560 | 2516 |
|
FIDE Master |
| 399. | borke39 | 2031 | 8551 | Top Player | |
| 400. | bostizar | 2271 | 8992 |
|
FIDE Master |