2011 Portland Chess Club Centennial
7:00 p.m. Saturday, August 13, 2011 (next round 10:00 a.m.)
Pairings for Round 4. Portland Chess Club Centennial: Championship
| Bd | Res | White | Res | Black |
| 1 | Howard Jed Chen (2362) | Georgi Orlov (2541) | ||
| 2 | Bindi Cheng (2386) | Nick Raptis (2261) | ||
| 3 | Michael Lee (2437) | Mike E Janniro (2071) | ||
| 4 | Loren Laceste (unr.) | David C Roper (2334) | ||
| 5 | James Chan (1938) | Steven James Breckenridge (2267) | ||
| 6 | Andy C Lee (2267) | Steven B Deeth (2062) | ||
| 7 | David R Bragg (2212) | Megan Lee (2059) | ||
| 8 | Richard G Gutman (2068) | Carl A Haessler (2200) | ||
| 9 | Daniel Zachary Gay (2120) | Michael J Pendergast (2177) | ||
| 10 | Peter Lessler (2114) | Corbin Yu (2162) | ||
| 11 | Andy P May (2129) | Carl A Koontz (2027) | ||
| 12 | Jason Cigan (1880) | Joshua Christopher Sinanan (2288) | ||
| 13 | H G Pitre (1839) | John M Williams (2146) | ||
| 14 | Alexandru Florea (1930) | Paul Bartron (2104) | ||
| 15 | Igor Ummel (2097) | Ryan Lo (unr.) | ||
| 16 | Joe Roback (unr.) | Nathan Y Lee (2085) | ||
| 17 | Brian John Esler (1984) | Radu Roua (2269) | ||
| 18 | Roger Patterson (2179) | Mark Andrew Havrilla (1923) | ||
| 19 | Roland Feng (2074) | Todd Imada (1875) | ||
| 20 | David Inglis (1937) | Samir Sen (2052) | ||
| 21 | Mikeal Davis (2015) | Calvin Jay Parnon (1753) | ||
| 22 | George W Lundy III (1440) | Bill Heywood (2000) | ||
| 23 | Allen Chalfen (1853) | David Golub (2188) | ||
| 24 | Preston F Polasek (2007) | John Doknjas (1931) | ||
| 25 | Ben Chu Kung (1817) | Roberto Aiello (1992) | ||
| 26 | V Alexandra Botez (2035) | Daniel Reas Mathews (1800) |