| Detective Cookie Chess Classic | 06Apr2025 | ||||
| Ranier Beach Community Center | 8825 Ranier Ave S. | Seattle | WA | 98118 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| K-1U700 | G/25;inc5 | NWSRS | 5 | Swiss | |
| 2-3U800 | G/25;inc5 | NWSRS | 5 | Swiss | |
| K-3Open | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| 4-8U900 | G/25;inc5 | NWSRS | 5 | Swiss | |
| 4-12Open | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| 2025 Western States Regional Chess Championship for Girls & Women | 12Apr2025 to 13Apr2025 | ||||
| Chinook Middle School | 2001 98th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Megan Lee Championship | G/60;inc30 | USCF + NWSRS + FIDE | 5 | Swiss | |
| Divya Deshmukh U1300 | G/40;inc5 | USCF + NWSRS | 5 | Swiss | |
| Carissa Yip U700 | G/25;inc5 | USCF + NWSRS | 5 | Swiss | |
| Megan Lee Simul | 13Apr2025 | ||||
| Chinook Middle School | 2001 98th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Simul | None | NWSRS | 1 | Simul | |
| Puzzle Solving Competition | 13Apr2025 | ||||
| Chinook Middle School | 2001 98th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Puzzle | 30 mins | NWSRS | 1 | None | |
| WA Spring Mini-Teams Chess Championship | 13Apr2025 | ||||
| Chinook Middle School | 2001 98th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| K-3 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| 4-6 | G/25;inc5 | NWSRS _ USCF | 5 | Swiss | |
| 7-12 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| Parents & Friends | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| Bellingham Open | 19Apr2025 | ||||
| Western WA University Viking Union Building | 516 High Street | Bellingham | WA | 98225 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Whatcom Open | G/30;inc10 | NWSRS + USCF | 5 | Swiss | |
| Fairhaven U1700 | G/30;inc10 | NWSRS + USCF | 5 | Swiss | |
| Seattle University Chess Club Chess Classic | 03May2025 to 04May2025 | ||||
| Seattle University, Sinegal Bldg Room 100-110 | 12th Ave & E. Marion St (southwest corner) | Seattle | WA | 98122 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Championship | G/90;inc30 | USCF + FIDE | 4 | Swiss | |
| Premier U2000 | G/60;d10 | USCF | 5 | Swiss | |
| Rising U1500 | G/60;d10 | USCF | 5 | Swiss | |
| Casual 18+ | G/30;d10 | 5 | Swiss | ||
| K-3U700 | G/25;d5 | NWSRS | 5 | Swiss | |
| K-3Open | G/25;d5 | NWSRS | 5 | Swiss | |
| 4-12U900 | G/25;d5 | NWSRS | 5 | Swiss | |
| 4-12Open | G/25;d5 | NWSRS | 5 | Swiss | |
| Washington Senior Championship | 16May2025 to 18May2025 | ||||
| Orlov Chess Academy Redmond | 4174 148th Ave, Building I, Suite M | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Championship | G/90;inc30 | USCF | 5 | Swiss | |
| Premier U1700 | G/90;inc30 | USCF | 5 | Swiss | |
| Washington Girls Championship | 17May2025 to 18May2025 | ||||
| Orlov Chess Academy Seattle | 7212 Woodlawn Ave NE | Seattle | WA | 98115 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Elena Donaldson Championship | G/90;inc10 | NWSRS + USCF | 5 | Swiss | |
| Katerina Rohonyan U1400 | G/40;inc10 | NWSRS + USCF | 4 | Swiss | |
| Naomi Bashkansky U800 | G/25;inc5 | NWSRS | 5 | Swiss | |
| Washington Open | 24May2025 to 26May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Elite 1800+ 3 day | 30/90, SD/30;inc30 | USCF + NWSRS + FIDE | 6 | Swiss | |
| Elite 1800+ 2 day | 1-3:G/55;inc15. 4-6:30/90, SD/30;inc30 | USCF + NWSRS + FIDE | 6 | Swiss | |
| Premier U1800 3 day | 30/90, SD/30;inc30 | USCF + NWSRS + FIDE | 6 | Swiss | |
| Premier U1800 2 day | 1-3:G/55;inc15. 4-6:30/90, SD/30;inc30 | USCF + NWSRS + FIDE | 6 | Swiss | |
| Rising U1500 3 day | 30/90, SD/30;inc30 | USCF + NWSRS | 6 | Swiss | |
| Rising U1500 2 day | 1-3:G/55;inc15. 4-6:30/90, SD/30;inc30 | USCF + NWSRS | 6 | Swiss | |
| Dynamos U1200 3 day | 30/90, SD/30;inc30 | USCF + NWSRS | 6 | Swiss | |
| Dynamos U1200 2 day | 1-3:G/55;inc15. 4-6:30/90, SD/30;inc30 | USCF + NWSRS | 6 | Swiss | |
| Washington Open Faustino Oro Scholastic | 24May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| K-3U800 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| K-3Open | G/40;inc5 | NWSRS + USCF | 4 | Swiss | |
| 4-12U900 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| 4-12Open | G/40;inc5 | NWSRS + USCF | 4 | Swiss | |
| Washington Open Gary Dorfner Memorial Adult Novice Swiss | 24May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Quick | G/30;inc5 | None | 4 | Swiss | |
| Washington Open Fischer Chess960 Rapid | 24May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Fischer Random | G/10;inc3 | None | 4 | Swiss | |
| Washington Open Robson Puzzle Solving | 24May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Puzzle | 45 mins | NWSRS | 1 | None | |
| Washington Open Wenjun Chess Workshop for Girls and Women | 24May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Workshop | None | None | 1 | None | |
| Washington Open 3rd Annual Carol Kleist Memorial Adult Swiss | 25May2025 to 26May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Botvinnik Open | G/120;inc30 | USCF | 4 | Swiss | |
| Korchnoi U1500 | G/120;inc30 | USCF | 4 | Swiss | |
| Washington Open Carlsen Rapid | 25May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Kasparov 1600+ | G/12;inc4 | USCF Quick + FIDE Rapid + NWSRS | 5 | Swiss | |
| Anand U1600 | G/12;inc4 | USCF Quick + NWSRS | 5 | Swiss | |
| Washington Open Awonder Liang Bughouse | 25May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Bughouse | G/3 | NWSRS + USCF Blitz | 7 | Swiss | |
| Washington Open Firouzja Bullet | 25May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Bullet | G/2;inc1 | NWSRS | 5 | Swiss | |
| Washington Open WaldowChess Rapid | 26May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Waldow | G/8;inc3 | NWSRS | 5 | Swiss | |
| Washington Open Ignacio Perez Memorial Blitz | 26May2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Nakamura 1600+ Blitz | G/3;inc2 | USCF Blitz + FIDE Blitz | 11 | Swiss | |
| Tal U1600 Blitz | G/3;inc2 | USCF Blitz + NWSRS | 11 | Swiss | |
| Not a Real Tournament for Software Testing Only | 31Dec2025 | ||||
| Marriott Hotel @ Redmond Town Center | 7401 164th Ave NE | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Open | G/25;d5 | USCF + NWSRS | 3 | Quad | |
USCF memberships are required for sections where the Rating Type is USCF.
If a section is both NWSRS + USCF rated, the USCF rating will be used for pairings.
Open sections are harder, U800 means "Under 800" and is the easier section.
Closed sections are by invitation only to the top rated players.
Scholastic tournaments with 5 rounds held between Sep-Apr are state qualifiers.