| Code | Site | Code | Site | Code | Site | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UBW | Brentwood Bridge Club | UCN | Contra Costa Bridge Center | UDN | Travelers Bridge Club | ||||||
| UDO | Danville Bridge Club | UDV | Rossmoor Duplicate Bridge Club | ULK | Bridge on the Lake | ||||||
| UON | Orinda Newplicate | URO | Rossmoor Open Duplicate Club | US5 | San Ramon Sectional | ||||||
| UTF | ??? | UTY | Brentwood Bridge | UUN | ??? | ||||||
| UW4 | Walnut Creek Sectional |