Round 4 Pairings – Halloween Swiss
Please note that pairings are tentative and subject to change before the start of the round.
| Bd | # | Res | White | # | Res | Black |
| 1 | 2 | ½ | ALEJANDRO BOTTA | 6 | ½ | ROBERT C SULLIVAN |
| 2 | 1 | 1 | JUAN PASCUAL | 7 | 0 | MARK FINS |
| 3 | 10 | 0 | LEWIS TU | 4 | 1 | LOGAN BOUCHER |
| 4 | 5 | ½ | EDDIE YI MING WEI | 9 | ½ | PAUL A MISHKIN |
| 5 | 11 | 0 | CALVIN G HORI | 3 | 1 | SURAJ RAMANATHAN |
| 12 | 1 | JOHN R ARCHIBALD | BYE | |||
| 8 | ½ | DEREK JIN | BYE |