| Code | Site | Code | Site | Code | Site | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UDN | Travelers Bridge Club | UDO | Danville Bridge Club | UDV | Rossmoor Duplicate Bridge Club | ||||||
| ULK | Bridge on the Lake | UON | Orinda Newplicate | UOV | Overtricks By The Bay | ||||||
| URO | Rossmoor Open Duplicate Club | US5 | San Ramon Sectional | UTG | Lamorinda Bridge Club | ||||||
| UTY | Brentwood Bridge | UUN | ??? | UW4 | Walnut Creek Sectional |