| # | Name | Elo | Total | Country | Rank |
| 701. | bjodo | 2294 | 328 | - | |
| 702. | bjornahlander | 2528 | 2513 |
|
FIDE Master |
| 703. | bjorno | 2174 | 116 | - | |
| 704. | blackburne8 | 2159 | 165 | Strong Amateur | |
| 705. | blackgammon | 2514 | 3166 | Internat. Master | |
| 706. | blackjacket | 2224 | 3626 |
|
Master Candidate |
| 707. | blacky_263 | 1968 | 47 | Beginner | |
| 708. | blauer reiter | 2502 | 115894 |
|
Grandmaster |
| 709. | blazko | 2353 | 172 | Amateur | |
| 710. | bleck le rock | 2396 | 268 | - | |
| 711. | blessymuk | 2004 | 285 | Apprentice | |
| 712. | blindfldjeddah | 2119 | 262 | - | |
| 713. | blingz | 2195 | 120 | Amateur | |
| 714. | blinniz | 1113 | 217 | Strong Amateur | |
| 715. | blitzandblunders | 2154 | 114 | Amateur | |
| 716. | blitzman | 2150 | 1714 | Tactics Master | |
| 717. | blitzthilo | 1868 | 25 |
|
Beginner |
| 718. | blizzard | 2300 | 890 | Shooting Star | |
| 719. | bloodofchess | 2108 | 69 | Beginner | |
| 720. | bloombs | 1879 | 21 | Beginner | |
| 721. | blueberryman0 | 2222 | 124 | Amateur | |
| 722. | bluedoc23 | 2253 | 258 | - | |
| 723. | bluegenjo | 2619 | 1607 | Shooting Star | |
| 724. | bluejohn | 2053 | 86 | Amateur | |
| 725. | bluelion | 2257 | 37276 | FIDE Master |
| # | Name | Elo | Total | Country | Rank |
| 726. | blume230957 | 1597 | 39 | - | |
| 727. | blumenstiel | 2968 | 4337 | World Champion | |
| 728. | blunder-alien | 1863 | 20 |
|
Beginner |
| 729. | blunder123445678910 | 2098 | 525 | Talent | |
| 730. | blunderjuba | 1602 | 1 | - | |
| 731. | boardmember | 2390 | 30013 |
|
FIDE Master |
| 732. | boarne | 2128 | 264 | Apprentice | |
| 733. | bob1730 | 2108 | 185 | Strong Amateur | |
| 734. | bobaka | 2274 | 626 | Player | |
| 735. | bobblomquist | 2199 | 9674 | Master Candidate | |
| 736. | bobby62 | 1902 | 29676 | Experienced Player | |
| 737. | bobbyhopes | 2424 | 483 | Amateur | |
| 738. | bobc | 2207 | 8556 | FIDE Master | |
| 739. | boby mooser | 2182 | 1475 | Shooting Star | |
| 740. | bobyfi | 2465 | 586 | Beginner | |
| 741. | bocaelmejordelmundo | 1734 | 8 | - | |
| 742. | bochows | 2315 | 130 | Amateur | |
| 743. | bodiroga | 1999 | 26 | - | |
| 744. | boera3689 | 2324 | 252 |
|
- |
| 745. | bogossian62 | 1770 | 25 | - | |
| 746. | bogotexan | 2265 | 254 | - | |
| 747. | bogus trumper | 2060 | 129 | - | |
| 748. | bohdanto | 1733 | 35 | Beginner | |
| 749. | bohenriksen | 2529 | 29355 | Grandmaster | |
| 750. | bohus | 2584 | 2111 | Top Player |