| Sicilian DefenseB20 | 8,324,421 | 49%48% |
| Queen's Pawn GameA40 | 8,074,493 | 51%45% |
| French DefenseC00 | 5,526,931 | 48%48% |
| Caro-Kann DefenseB10 | 4,945,496 | 48%48% |
| Scandinavian DefenseB01 | 4,806,456 | 49%47% |
| Italian GameC50 | 3,565,268 | 50%46% |
| King's Pawn GameB00 | 2,644,525 | 50%46% |
| English OpeningA10 | 2,602,575 | 51%45% |
| Queen's Gambit DeclinedD30 | 2,307,275 | 52%44% |
| Zukertort OpeningA04 | 2,091,079 | 50%46% |
| Modern DefenseB06 | 1,950,645 | 49%47% |
| Philidor DefenseC41 | 1,850,671 | 50%46% |
| Scotch GameC44 | 1,755,634 | 53%44% |
| Pirc DefenseB00 | 1,753,473 | 49%47% |
| Indian DefenseA45 | 1,646,350 | 49%46% |
| Bishop's OpeningC23 | 1,517,788 | 52%45% |
| Nimzo-Larsen AttackA01 | 1,458,763 | 50%46% |
| Ruy LopezC60 | 1,454,441 | 51%45% |
| Van't Kruijs OpeningA00 | 1,429,529 | 48%48% |
| Hungarian OpeningA00 | 1,342,606 | 50%46% |
| Englund GambitA40 | 1,171,232 | 49%48% |
| Horwitz DefenseA40 | 1,163,991 | 51%45% |
| Vienna GameC25 | 1,121,663 | 52%45% |
| Benoni DefenseA56 | 1,100,497 | 49%48% |
| Four Knights GameC47 | 1,096,669 | 50%46% |
| Petrov's DefenseC42 | 1,090,926 | 50%46% |
| Owen DefenseB00 | 1,070,132 | 50%47% |
| Nimzowitsch DefenseB00 | 996,839 | 50%46% |
| Bird OpeningA02 | 952,764 | 50%47% |
| Slav DefenseD10 | 929,826 | 51%45% |
| Alekhine DefenseB02 | 779,940 | 49%47% |
| Queen's Gambit AcceptedD20 | 693,805 | 54%42% |
| King's Indian DefenseE61 | 686,700 | 49%47% |
| Mieses OpeningA00 | 633,405 | 49%48% |
| Center GameC20 | 587,072 | 51%46% |
| King's Gambit AcceptedC33 | 562,919 | 52%45% |
| Three Knights OpeningC46 | 535,887 | 50%47% |
| English DefenseA40 | 507,380 | 50%47% |
| Dutch DefenseA80 | 498,449 | 50%46% |
| Englund Gambit DeclinedA40 | 463,426 | 49%48% |
| King's Gambit DeclinedC32 | 410,098 | 50%47% |
| Rat DefenseB00 | 403,572 | 50%47% |
| Rapport-Jobava SystemD01 | 368,954 | 52%44% |
| Semi-Slav DefenseD43 | 360,045 | 52%44% |
| Polish OpeningA00 | 342,334 | 52%44% |
| Ponziani OpeningC44 | 329,313 | 50%46% |
| Van Geet OpeningA00 | 325,632 | 50%47% |
| King's Indian AttackA07 | 316,366 | 51%44% |
| King's Knight OpeningC40 | 303,706 | 51%45% |
| Elephant GambitC40 | 300,758 | 48%49% |
| Grob OpeningA00 | 257,435 | 50%47% |
| Blackmar-Diemer GambitD00 | 252,320 | 50%47% |
| Old Indian DefenseA41 | 248,400 | 49%47% |
| Saragossa OpeningA00 | 248,172 | 49%47% |
| Nimzo-Indian DefenseE20 | 210,524 | 49%46% |
| Mikenas DefenseA40 | 167,235 | 51%45% |
| Danish Gambit AcceptedC21 | 163,690 | 56%41% |
| London SystemA48 | 155,749 | 48%48% |
| King's GambitC30 | 151,821 | 54%43% |
| Trompowsky AttackA45 | 149,767 | 49%46% |
| Grünfeld DefenseD80 | 134,638 | 47%47% |
| St. George DefenseB00 | 129,906 | 50%47% |
| Réti OpeningA09 | 125,444 | 53%43% |
| Barnes OpeningA00 | 116,721 | 46%50% |
| Rapport-Jobava System, with e6D01 | 114,017 | 51%46% |
| Blackmar-Diemer Gambit AcceptedD00 | 107,470 | 55%42% |
| Vienna Gambit, with Max Lange DefenseC25 | 93,558 | 52%44% |
| Duras GambitB00 | 92,800 | 52%46% |
| Borg DefenseB00 | 90,366 | 51%47% |
| Kádas OpeningA00 | 85,286 | 44%52% |
| Catalan OpeningE00 | 85,261 | 52%42% |
| East Indian DefenseA48 | 81,002 | 47%48% |
| Tarrasch DefenseD32 | 75,317 | 49%47% |
| Polish Opening, with d5A00 | 75,203 | 52%44% |
| Torre AttackA48 | 74,200 | 50%46% |
| Latvian GambitC40 | 70,284 | 49%48% |
| King's Indian Attack, with e6A07 | 69,300 | 52%43% |
| Czech DefenseB07 | 67,450 | 49%47% |
| Ware OpeningA00 | 66,349 | 45%51% |
| Anderssen's OpeningA00 | 65,115 | 48%48% |
| Queen's Indian DefenseE12 | 57,775 | 50%45% |
| Ware DefenseB00 | 55,991 | 54%42% |
| Clemenz OpeningA00 | 55,370 | 46%50% |
| Blackmar-Diemer Gambit DeclinedD00 | 54,850 | 52%45% |
| Richter-Veresov AttackD01 | 54,772 | 49%46% |
| Danish GambitC21 | 54,408 | 50%46% |
| Barnes DefenseB00 | 48,914 | 53%43% |
| Queen's GambitD06 | 47,919 | 56%41% |
| Goldsmith DefenseB00 | 47,560 | 52%44% |
| Latvian Gambit AcceptedC40 | 42,243 | 48%49% |
| Neo-Grünfeld DefenseD79 | 40,850 | 50%43% |
| Yusupov-Rubinstein SystemA46 | 40,666 | 50%45% |
| Carr DefenseB00 | 39,126 | 51%45% |
| Polish DefenseA40 | 34,548 | 51%46% |
| Pterodactyl DefenseA42 | 33,926 | 48%48% |
| London System, with Bd3A48 | 33,893 | 44%53% |
| King's Pawn OpeningC20 | 32,655 | 46%50% |
| Gunderam DefenseC40 | 32,147 | 51%45% |
| Lion DefenseB07 | 31,737 | 49%47% |
| Benko GambitA57 | 30,033 | 44%52% |
| Portuguese OpeningC20 | 27,779 | 43%53% |
| Bogo-Indian DefenseE11 | 26,802 | 49%45% |
| Benko Gambit AcceptedA57 | 24,576 | 46%48% |
| Slav IndianA50 | 24,177 | 51%45% |
| Amazon AttackD00 | 23,847 | 46%50% |
| Paleface AttackA45 | 22,197 | 47%49% |
| Canard OpeningA45 | 20,853 | 49%46% |
| Danish Gambit DeclinedC21 | 19,193 | 46%50% |
| King's Indian Attack, with Bf5A07 | 18,903 | 51%43% |
| London System, with Be2A48 | 18,397 | 49%46% |
| Mexican DefenseA50 | 17,216 | 50%46% |
| Amar OpeningA00 | 17,206 | 44%51% |
| Lasker Simul SpecialA00 | 15,067 | 46%50% |
| Pseudo Queen's Indian DefenseA47 | 14,169 | 49%46% |
| Rubinstein OpeningD05 | 14,090 | 52%43% |
| Kangaroo DefenseA40 | 13,325 | 52%44% |
| Queen's Indian AcceleratedA50 | 12,709 | 50%46% |
| Center Game AcceptedC21 | 11,446 | 41%56% |
| Sodium AttackA00 | 9,794 | 44%52% |
| Wade DefenseA41 | 9,393 | 51%45% |
| Valencia OpeningA00 | 8,907 | 49%48% |
| Creepy Crawly FormationA00 | 7,196 | 47%49% |
| Hippopotamus DefenseB00 | 6,117 | 53%43% |
| Benko Gambit DeclinedA57 | 5,601 | 47%48% |
| Lemming DefenseB00 | 5,387 | 58%37% |
| Fried Fox DefenseB00 | 5,246 | 52%45% |
| Global OpeningA00 | 4,210 | 48%48% |
| Robatsch DefenseA41 | 3,985 | 47%48% |
| Semi-Slav Defense AcceptedD44 | 3,530 | 48%48% |
| Montevideo DefenseA40 | 3,384 | 50%46% |
| Australian DefenseA40 | 3,115 | 55%39% |
| Irish GambitC44 | 2,941 | 30%67% |
| Bongcloud AttackC20 | 2,265 | 32%64% |
| Döry DefenseA46 | 2,241 | 53%44% |
| English OrangutanA15 | 2,145 | 47%47% |
| Blumenfeld CountergambitE10 | 1,181 | 48%47% |