| Seattle Seafair Open | 12Jul2025 to 13Jul2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Open | G/75;inc30 | USCF + FIDE | 5 | Swiss | |
| Premier U1600 | G/75;inc30 | USCF + FIDE | 5 | Swiss | |
| Seafair Blitz | 13Jul2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Blitz | G/5;inc3 | USCF Blitz + FIDE Blitz | 9 | Swiss | |
| Vancouver Open | 19Jul2025 to 20Jul2025 | ||||
| Hampton Inn & Suites | 315 SE Olympia Drive | Vancouver | WA | 98684 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Lewis Open | 1:G/60; inc10. 2-5:40/120, SD/30; inc10 | USCF | 5 | Swiss | |
| Clark U1700 | 1:G/60; inc10. 2-5:40/120, SD/30; inc10 | USCF | 5 | Swiss | |
| Big Summer Adult Swiss | 26Jul2025 to 27Jul2025 | ||||
| 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 | |
| Open | G/120;inc30 | USCF | 4 | Swiss | |
| U1600 | G/120;inc30 | USCF | 4 | Swiss | |
| Seattle Summer WaldowChess Championship | 26Jul2025 to 27Jul2025 | ||||
| Orlov Chess Academy Seattle | 7212 Woodlawn Ave NE | Seattle | WA | 98115 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Waldow | G/75;inc15 | USCF + FIDE | 5 | Swiss | |
| Monroe YMCA Summer Chess Championship | 26Jul2025 | ||||
| Monroe/Sky Valley Family YMCA | 14033 Fryelands Blvd | Monroe | WA | 98272 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Monroe Championship | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| Snohomish U1300 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| Skykomish U900 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| Snoqualmie U500 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| Slava Mikhailuk USCF Swiss | 10Aug2025 | ||||
| Hilton Garden Inn | 16630 Redmond Way | Redmond | WA | 98052 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Open | G/25;d5 | USCF | 5 | Swiss | |
| K-12U1100 | G/25;d5 | USCF | 5 | Swiss | |
| K-5U900 | G/25;d5 | USCF | 5 | Swiss | |
| K-3U600 | G/25;d5 | USCF | 5 | Swiss | |
| Seattle Chess Classic | 16Aug2025 to 17Aug2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Tiglon Open | G/90;inc30 | NWSRS + USCF + FIDE | 6 | Swiss | |
| Seirawan U1600 | G/90;inc30 | NWSRS + USCF + FIDE | 6 | Swiss | |
| Sizzling Summer Rapid Chess Tournament | 16Aug2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| K-3U700 | G/25;inc5 | NWSRS | 7 | Swiss | |
| 4-12U900 | G/25;inc5 | NWSRS + USCF | 7 | Swiss | |
| K-3Open | G/25;inc5 | NWSRS + USCF | 7 | Swiss | |
| 4-12Open | G/25;inc5 | NWSRS + USCF | 7 | Swiss | |
| Seattle Classic Scholastic Chess Tournament | 17Aug2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| K-3U800 | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| K-3Open | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| 4-12U1000 | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| 4-12Open | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| Snohomish County Open | 23Aug2025 | ||||
| Mukilteo Presbyterian Church | 4514 84th St SW | Mukilteo | WA | 98275 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Open | G/25;inc5 | USCF | 5 | Swiss | |
| U1500 | G/25;inc5 | USCF | 5 | Swiss | |
| Unrated | G/25;inc5 | 5 | Swiss | ||
| Covington Library Chess Tournament | 23Aug2025 | ||||
| Covington Library | 27100 164th Ave SE | Covington | WA | 98042 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Open | G/25;inc5 | NWSRS | 5 | Swiss | |
| Casual U600 | G/25;inc5 | NWSRS | 5 | Swiss | |
| New Adventure Scholastic | 27Sep2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| K-3U700 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| K-3Open | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| 4-12U900 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| 4-12Open | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| King County Open | 27Sep2025 to 28Sep2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Kenmore Open | G/90;inc30 | NWSRS + USCF + FIDE | 5 | Swiss | |
| Kent U1500 | G/90;inc30 | NWSRS + USCF + FIDE | 5 | Swiss | |
| King County Scholastic | 28Sep2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| K-3U800 | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| K-3Open | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| 4-12U1000 | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| 4-12Open | G/45;inc5 | NWSRS + USCF | 4 | Swiss | |
| King County Blitz | 28Sep2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Blitz | G/5;inc3 | NWSRS + USCF Blitz + FIDE Blitz | 7 | Swiss | |
| Washington Womens Championship | 11Oct2025 to 12Oct2025 | ||||
| Hotel 116 Bellevue | 625 116th Ave NE | Bellevue | WA | 98004 | |
| Sections | Time control | Rating Type | Rounds | Pairing Rules | |
| Polgar Championship | G/90;inc30 | NWSRS + USCF + FIDE | 5 | Swiss | |
| Wenjun U1300 | G/75;inc10 | NWSRS + USCF | 6 | Swiss | |
| Koneru U700 | G/25;inc5 | NWSRS + USCF | 5 | Swiss | |
| Botez Casual Unrated | G/30;inc10 | NWSRS + USCF | 4 | 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.