White | Elo | Black | Elo | ECO | Year | Res. | # | | | |
Dauvergne, Peter
|
2200
|
Costigan, Richard
|
2310
|
A55
|
1986
|
½-½
| 11 |
|
|
|
Fedorowicz, John P
|
2500
|
Costigan, Richard
|
2310
|
A55
|
1986
|
½-½
| 47 |
|
|
|
Frias Pablaza, Victor ...
|
2440
|
Costigan, Richard
|
2310
|
A55
|
1986
|
½-½
| 62 |
|
|
|
Pelts, Roman
|
2430
|
Costigan, Richard
|
2375
|
A55
|
1987
|
½-½
| 19 |
|
|
|
Wilder, Michael
|
2485
|
Costigan, Richard
|
2375
|
A55
|
1987
|
1-0
| 50 |
|
|
|
Remlinger, Larry
|
2370
|
Costigan, Richard
|
2325
|
A55
|
1991
|
0-1
| 58 |
|
|
|
Zimmer, Ralph
|
2193
|
Costigan, Richard
|
2301
|
A55
|
2012
|
1-0
| 63 |
|
|
|