| Code | Site | Code | Site | Code | Site | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| NAO | Ames Open DBC | NBM | Bid N Made | NC5 | Clive Sectional | ||||||
| NCD | Crazy Deuces | NCY | Cyclone DBC | ND7 | Des Moines Sectional | ||||||
| NDM | Greater Des Moines Bridge | NH6 | Harrietage STaC | NHG | Harrietage Club | ||||||
| NMS | Marshall Dup Bridge Clubs | NMU | Mutual DBC | NSB | Suburban Bridge Club | ||||||
| NU4 | Urbandale Sectional |