Master Challenge op
USA 1993
| Date | Players | Type | Elo Average | Games | Rounds |
| 1993 | 20 | Swiss | 571 | 20 | 5 |
| Name | ELO | Points | ||
|
FM Chow, Albert | 2270 | 4.5 | |
|
Umezinwa, George | 2325 | 3.5 | |
|
Burnett, Kevin | 2295 | 2.5 | |
|
Dandridge, Marvin | 2215 | 2.5 | |
|
Levit, Roman | 2315 | 1.5 | |
 |
Acosta, Mariano | 1.0 | ||
| Rogan, Marvin | 1.0 | |||
| Pedersen, R. | 1.0 | |||
|
FM Pangan, Camilo C | 1.0 | ||
| Stern, H. | 0.5 | |||
| Marshall, James | 0.5 | |||
|
FM Porter, Ryan W | 0.5 | ||
| Jenkins, R. | 0.0 | |||
| Scott, G. | 0.0 | |||
| Inumerable, F. | 0.0 | |||
| Pukel, B. | 0.0 | |||
| Walhout, D. | 0.0 | |||
|
Sax, Robert | 0.0 | ||
| Fagen, J. | 0.0 | |||
| Wulatin, D. | 0.0 | |||
Master Challenge op Games
| White | Black | Result | Round | Date | Opening | View |
| Dandridge, M | Pedersen, R | 0-1  |
1 | 1993 | D00 Queen's pawn game |   |
| Fagen, J | Chow, A | 0-1 |
1 | 1993 | E10 Queen's pawn game |   |
| Pangan, C | Walhout, D | 1-0 |
1 | 1993 | C88 Ruy Lopez, closed | |
| Rogan, M | Acosta, M | 1-0 |
1 | 1993 | C33 King's gambit accepted | |
| Sax, R | Umezinwa, G | 0-1 |
1 | 1993 | B67 Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7 | |
| Acosta, M | Pukel, B | 1-0 |
2 | 1993 | D36 Queen's Gambit Declined, exchange, positional line, 6.Qc2 | |
| Chow, A | Rogan, M | 1-0 |
2 | 1993 | A83 Dutch, Staunton gambit, Staunton's line | |
| Marshall, J | Levit, R | ½-½ |
2 | 1993 | C60 Ruy Lopez (Spanish opening) | |
| Stern, H | Dandridge, M | ½-½ |
2 | 1993 | B15 Caro-Kann defence | |
| Umezinwa, G | Wulatin, D | 1-0 |
2 | 1993 | E88 King's Indian, Saemisch, orthodox, 7.d5 c6 | |
| Burnett, K | Pangan, C | 1-0 |
3 | 1993 | B06 Robatsch (modern) defence | |
| Dandridge, M | Jenkins, R | 1-0 |
3 | 1993 | A00 Polish (Sokolsky) opening | |
| Inumerable, F | Chow, A | 0-1 |
3 | 1993 | A32 English, symmetrical variation | |
| Porter, R | Umezinwa, G | ½-½ |
3 | 1993 | C44 King's pawn game | |
| Scott, G | Burnett, K | 0-1 |
3 | 1993 | D03 Torre attack (Tartakower variation) | |
| Chow, A | Dandridge, M | 1-0 |
4 | 1993 | D34 Queen's Gambit Declined, Tarrasch, Prague variation, 7...Be7 | |
| Umezinwa, G | Stern, H | 1-0 |
4 | 1993 | B22 Sicilian, Alapin's variation (2.c3) | |
| Chow, A | Burnett, K | ½-½ |
5 | 1993 | D36 Queen's Gambit Declined, exchange, positional line, 6.Qc2 | |
| Dandridge, M | Rogan, M | 1-0 |
5 | 1993 | A04 Reti opening | |
| Umezinwa, G | Levit, R | 0-1 |
5 | 1993 | D03 Torre attack (Tartakower variation) | |
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