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Player Profile

Player:

(Eg: Carlsen,Magnus)

Duckworth, William Mark



Years:	1981-2017
Number of games:	164
Number of wins:	55
Number of draws:	48
Number of losses:	61
White score:	46/84 (54.76% - Average Elo: 2273.53)
Black score:	33/80 (41.25% - Average Elo: 2285.15)

Rating progression

Games
White wins
White draws
White losses
Black wins
Black draws
Black losses

Top wins

Duckworth, William Mark (2330) - Remlinger, Larry (2465), American op, Los Angeles (E77) - 1995

Duckworth, William Mark (2330) - Fedorov, Vladislav (2445), American op, Los Angeles (B07) - 1995

Duckworth, William Mark (2256) - Kalantaryan, Norayr (2412), Los Angeles Metropolitan 25th, Los Angeles (B00) - 2013

Schroer, Jonathan (2395) - Duckworth, William Mark (2295), Fishbecks, Pasadena (E80) - 1992

Thinnsen, James A (2340) - Duckworth, William Mark (2295), Los Angeles, Los Angeles (A56) - 1992

Kavutskiy, Konstantin (2315) - Duckworth, William Mark (2313), Los Angeles Metropolitan 15th, Los Angeles (A56) - 2012

Duckworth, William Mark - ? (67)

Matikozian, Andranik (2/5)

Amanov, Zhanibek (½/3)

Peters, Jack (½/3)

Akopian, Robert (1/2)

Akopyan, Harutyun (1½/2)

Kavutskiy, Konstantin (½/2)

Lucky, David N (1/2)

Remlinger, Larry (1½/2)

Viswanadha, Kesav (2/2)

Visweswaran, Kameswaran (1½/2)

Yanayt, Eugene (1½/2)

Yankovsky, Roman (0/2)

Adamson, Robby (½/1)

Aghasaryan, Robert (0/1)

Beelby, Matthew A (½/1)

Bolbochan, Julio (0/1)

Browne, Walter Shawn (0/1)

Burg, Dan (1/1)

Carlson, Mike (½/1)

Carreto Nieto, Geovanni (1/1)

Casella, Michael (0/1)

Chapa, Eric (1/1)

Chen, Ke (1/1)

Defibaugh, Jared E (½/1)

Donaldson, John W (½/1)

Fedorov, Vladislav (1/1)

Finegold, Benjamin (½/1)

Frenkel, Filipp (1/1)

Granda Zuniga, Julio E (0/1)

Graves, John D (1/1)

Gupta, Ankit (0/1)

Gurevich, Dmitry (0/1)

Gutman, Joshua (1/1)

Harmon, Clark R (1/1)

Herder, David A (1/1)

Hough, Randall D (½/1)

Kalantaryan, Norayr (1/1)

Kukavica, Tony (½/1)

Labrador, Samson (1/1)

Lee, Dan (½/1)

Liou, Yian (1/1)

Longren, William B (½/1)

Manik, Mikulas (0/1)

Manukian, Garuch (½/1)

Marshall, T (½/1)

McCambridge, Vincent (0/1)

Mohandesi, Shahin (½/1)

Moussa, Alaa Eddine (½/1)

Muhammad, Stephen A (0/1)

Nemcova, Katerina (0/1)

Purcell, Brendan (1/1)

Quercia, Dylan (½/1)

Ramayrat, Cris (1/1)

Rymuza, Jeffrey (1/1)

Sainz Aguirre, Ignacio (1/1)

Schiller, Eric Andrew (0/1)

Schroer, Jonathan (½/1)

Serpik, Ilia V (½/1)

Sevian, Samuel (1/1)

Sevillano, Enrico (0/1)

Silman, Jeremy D (½/1)

Simms, Rickie (1/1)

Smith, Larry (1/1)

Stein, Alan R (1/1)

Tanaka, Christian T (1/1)

Tovmasyan, Hamlet (1/1)

Wang, Richard (½/1)

? - Duckworth, William Mark (64)

Amanov, Zhanibek (½/4)

Clawitter, Craig (1½/3)

Manukian, Garuch (1½/3)

Remlinger, Larry (½/3)

Akopyan, Harutyun (½/2)

Ivanov, Igor Vasilievich (0/2)

Kudryavtsev, Vadim (½/2)

Sevian, Samuel (0/2)

Tatum, Kofi Odell (1½/2)

Yang, Darwin (½/2)

Yankovsky, Roman (0/2)

Abrahamyan, Tatev (0/1)

Adamson, Robby (1/1)

Alburt, Lev O (0/1)

Altounian, Levon (0/1)

Amerkeshev, Madiyar (1/1)

Arencibia Monduy, Antonio (½/1)

Azimova, Karina (½/1)

Boctor, Wageeh (1/1)

Brooks, Michael A (0/1)

Brown, Michael William (0/1)

Burnett, Kevin (0/1)

Casella, Michael (0/1)

Cotton, Donald R (0/1)

De Firmian, Nick E (½/1)

Dubisch, Ralph (1/1)

Feng, Roland (1/1)

Goldin, Alexander (0/1)

Guadalupe, Francisco II (0/1)

Hanley, Joe (0/1)

Hayes, Matthew (1/1)

Homidan, Jonathan (0/1)

Hughes, Austin (1/1)

Hurdle, Robert (1/1)

Jones, Race (1/1)

Kalantaryan, Norayr (½/1)

Kavutskiy, Konstantin (1/1)

Kelley, Dereque D (½/1)

Khachiyan, Melikset (½/1)

Kurosaki, Takashi (1/1)

Lagua, Bende (½/1)

Lakdawala, Cyrus (0/1)

Lee, Dan (1/1)

Liou, Yian (0/1)

Martirosov, Vadim (0/1)

Matikozian, Andranik (0/1)

Pellant, Timothy (1/1)

Perez, Ron (1/1)

Pershad, Yash (½/1)

Peters, Jack (0/1)

Randall, Dean J (0/1)

Russell, Corey J (½/1)

Salakhutdinov, Ildar (0/1)

Schroer, Jonathan (1/1)

Seltzer, Robert (½/1)

Sheng, Joshua (1/1)

Shirazi, Kamran (0/1)

Stein, Jeremy A (1/1)

Strayer, Geofrey (1/1)

Thinnsen, James A (1/1)

Torres Gonzalez, Jose Arturo (1/1)

Viswanadha, Kesav (0/1)

Wang, Philip Xiao (0/1)

Willis, Matthew M (1/1)

Openings played as White (37)

D01 Richter-Veresov Attack (1.d4 d5 2.Nc3 Nf6 3.Bg5)
Average Elo: 2265.79
Result: 10/14 = 71.43%

A45 Queen's Pawn Game (1.d4 Nf6)
Average Elo: 2215.09
Result: 7/11 = 63.64%

D00 Queen's Pawn Game (1.d4 d5)
Average Elo: 2298.8
Result: 4½/10 = 45%

B07 Pirc (1.e4 d6 2.d4 Nf6)
Average Elo: 2265
Result: 2/4 = 50%

A00 Uncommon Opening (1.g4, a3, h3, etc.)
Average Elo: 2222.5
Result: 0/3 = 0%

E77 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2)
Average Elo: 2301.33
Result: 2½/3 = 83.33%

B21 Sicilian, 2.f4 and 2.d4 (1.e4 c5 2.f4)
Average Elo: 2131.5
Result: ½/3 = 16.67%

C02 French, Advance (1.e4 e6 2.d4 d5 3.e5)
Average Elo: 2000
Result: 3/3 = 100%

A03 Bird's Opening (1.f4 d5)
Average Elo: 2343
Result: ½/2 = 25%

A57 Benko Gambit (1.d4 Nf6 2.c4 c5 3.d5 b5)
Average Elo: 2395
Result: 1½/2 = 75%

B00 Uncommon King's Pawn Opening (1.e4)
Average Elo: 2346.5
Result: 1½/2 = 75%

A43 Old Benoni (1.d4 c5)
Average Elo: 2326
Result: 1/2 = 50%

E08 Catalan, Closed (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2)
Average Elo: 2211
Result: ½/1 = 50%

C36 King's Gambit Accepted, Abbazia Defense (1.e4 e5 2.f4 exf4 3.Nf3 d5)
Average Elo: 2340
Result: ½/1 = 50%

B30 Sicilian (1.e4 c5 2.Nf3 Nc6)
Average Elo: 2475
Result: 0/1 = 0%

B53 Sicilian (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4)
Average Elo: 2525
Result: 0/1 = 0%

D80 Grunfeld (1.d4 Nf6 2.c4 g6 3.Nc3 d5)
Average Elo: 0
Result: 1/1 = 100%

A80 Dutch (1.d4 f5)
Average Elo: 2050
Result: ½/1 = 50%

B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack (1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7)
Average Elo: 2420
Result: ½/1 = 50%

B31 Sicilian, Rossolimo Variation (1.e4 c5 2.Nf3 Nc6 3.Bb5 g6)
Average Elo: 2525
Result: 0/1 = 0%

B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack (1.e4 c5 2.Nf3 d6 3.Bb5+)
Average Elo: 2479
Result: 0/1 = 0%

B16 Caro-Kann, Bronstein-Larsen Variation (1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6)
Average Elo: 2265
Result: 1/1 = 100%

E09 Catalan, Closed (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2)
Average Elo: 0
Result: 1/1 = 100%

A34 English, Symmetrical (1.c4 c5 2.Nc3)
Average Elo: 2305
Result: ½/1 = 50%

C00 French Defense (1.e4 e6)
Average Elo: 2240
Result: 1/1 = 100%

C16 French, Winawer (1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5)
Average Elo: 2250
Result: 0/1 = 0%

A46 Queen's Pawn Game (1.d4 Nf6 2.Nf3)
Average Elo: 2279
Result: ½/1 = 50%

A01 Nimzovich-Larsen Attack (1.b3)
Average Elo: 0
Result: ½/1 = 50%

B26 Sicilian, Closed, 6.Be3 (1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3)
Average Elo: 2414
Result: ½/1 = 50%

E84 King's Indian, Samisch, Panno Main line (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6 8.Qd2 Rb8)
Average Elo: 2409
Result: ½/1 = 50%

E00 Queen's Pawn Game (1.d4 Nf6 2.c4 e6)
Average Elo: 2235
Result: 0/1 = 0%

E05 Catalan, Open, Classical line (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7)
Average Elo: 1835
Result: ½/1 = 50%

A68 Benoni, Four Pawns Attack (1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 O-O)
Average Elo: 2320
Result: 1/1 = 100%

D15 Queen's Gambit Declined Slav (1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3)
Average Elo: 2176
Result: ½/1 = 50%

D17 Queen's Gambit Declined Slav (1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5)
Average Elo: 2395
Result: ½/1 = 50%

C41 Philidor Defense (1.e4 e5 2.Nf3 d6)
Average Elo: 0
Result: 1/1 = 100%

B23 Sicilian, Closed (1.e4 c5 2.Nc3)
Average Elo: 2467
Result: 0/1 = 0%

Openings played as Black (42)

C04 French, Tarrasch, Guimard Main line (1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6)
Average Elo: 2108.17
Result: 5/7 = 71.43%

C16 French, Winawer (1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5)
Average Elo: 2388.29
Result: 2/7 = 28.57%

A56 Benoni Defense (1.d4 Nf6 2.c4 c5)
Average Elo: 2284.83
Result: 3½/6 = 58.33%

B01 Scandinavian (1.e4 d5)
Average Elo: 2341.5
Result: 1/4 = 25%

C02 French, Advance (1.e4 e6 2.d4 d5 3.e5)
Average Elo: 2182.75
Result: 1/4 = 25%

C10 French (1.e4 e6 2.d4 d5 3.Nc3)
Average Elo: 2280
Result: 1/4 = 25%

A44 Old Benoni Defense (1.d4 c5 2.d5 e5)
Average Elo: 2139.5
Result: 1½/3 = 50%

C00 French Defense (1.e4 e6)
Average Elo: 2212.67
Result: 1½/3 = 50%

E72 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3)
Average Elo: 2313
Result: 1½/3 = 50%

A26 English (1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6)
Average Elo: 2189.5
Result: 1/2 = 50%

A46 Queen's Pawn Game (1.d4 Nf6 2.Nf3)
Average Elo: 2260
Result: 1/2 = 50%

B22 Sicilian, Alapin (1.e4 c5 2.c3)
Average Elo: 0
Result: 2/2 = 100%

B33 Sicilian (1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4)
Average Elo: 2395
Result: ½/2 = 25%

C05 French, Tarrasch (1.e4 e6 2.d4 d5 3.Nd2 Nf6)
Average Elo: 2404
Result: ½/2 = 25%

D94 Grunfeld (1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3)
Average Elo: 2386
Result: 0/2 = 0%

A01 Nimzovich-Larsen Attack (1.b3)
Average Elo: 2303
Result: 1/1 = 100%

A09 Reti Opening (1.Nf3 d5 2.c4)
Average Elo: 0
Result: 1/1 = 100%

A12 English with b3 (1.c4 c6 2.Nf3 d5 3.b3)
Average Elo: 2310
Result: 1/1 = 100%

A38 English, Symmetrical (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6)
Average Elo: 1995
Result: ½/1 = 50%

A52 Budapest Gambit (1.d4 Nf6 2.c4 e5 3.dxe5 Ng4)
Average Elo: 2575
Result: 0/1 = 0%

A53 Old Indian (1.d4 Nf6 2.c4 d6)
Average Elo: 2231
Result: 0/1 = 0%

A57 Benko Gambit (1.d4 Nf6 2.c4 c5 3.d5 b5)
Average Elo: 2270
Result: ½/1 = 50%

B00 Uncommon King's Pawn Opening (1.e4)
Average Elo: 0
Result: 0/1 = 0%

B27 Sicilian (1.e4 c5 2.Nf3)
Average Elo: 2045
Result: 1/1 = 100%

B44 Sicilian (1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6)
Average Elo: 2235
Result: 1/1 = 100%

B70 Sicilian, Dragon Variation (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6)
Average Elo: 0
Result: 0/1 = 0%

B79 Sicilian, Dragon, Yugoslav Attack, 12.h4 (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Qa5 11.Bb3 Rfc8 12.h4)
Average Elo: 2281
Result: 0/1 = 0%

C01 French, Exchange (1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nc3 Nf6 5.Bg5)
Average Elo: 2276
Result: ½/1 = 50%

C03 French, Tarrasch (1.e4 e6 2.d4 d5 3.Nd2)
Average Elo: 2247
Result: 0/1 = 0%

C18 French, Winawer (1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3)
Average Elo: 2217
Result: 0/1 = 0%

D02 Queen's Pawn Game (1.d4 d5 2.Nf3)
Average Elo: 2355
Result: 0/1 = 0%

D05 Queen's Pawn Game (1.d4 d5 2.Nf3 Nf6 3.e3 e6)
Average Elo: 0
Result: ½/1 = 50%

D06 Queen's Gambit Declined (1.d4 d5 2.c4)
Average Elo: 2475
Result: 0/1 = 0%

D13 Queen's Gambit Declined Slav, Exchange Variation (1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5)
Average Elo: 2085
Result: 0/1 = 0%

D15 Queen's Gambit Declined Slav (1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3)
Average Elo: 2495
Result: 0/1 = 0%

D32 Queen's Gambit Declined, Tarrasch (1.d4 d5 2.c4 e6 3.Nc3 c5)
Average Elo: 2475
Result: 0/1 = 0%

D35 Queen's Gambit Declined (1.d4 d5 2.c4 e6 3.Nc3 Nf6)
Average Elo: 2412
Result: ½/1 = 50%

E02 Catalan, Open, 5.Qa4 (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+)
Average Elo: 2570
Result: 0/1 = 0%

E06 Catalan, Closed, 5.Nf3 (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3)
Average Elo: 2220
Result: 1/1 = 100%

E08 Catalan, Closed (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2)
Average Elo: 2490
Result: ½/1 = 50%

E70 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4)
Average Elo: 2340
Result: 0/1 = 0%

E80 King's Indian, Samisch Variation (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3)
Average Elo: 2395
Result: 1/1 = 100%