| Code | Site | Code | Site | Code | Site | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| MA4 | Appleton Sectional | MBF | Bridge-For-Fun | ME5 | Eau Claire Sectional | ||||||
| MF4 | Fitchburg Sectional | MG4 | Green Bay Sectional | MGB | Green Bay Duplicate Bridge | ||||||
| MH4 | Hayward Sectional | ML4 | La Crosse Sectional | MLC | La Crosse DBC | ||||||
| MM5 | Madison Sectional | MM6 | Marquette Sectional | MM7 | Minocqua Sectional | ||||||
| MM8 | Monona Sectional | MMG | Morgan Bridge | MMM | Monona Monday Morning | ||||||
| MMQ | Minocqua DBC | MOQ | Jefferson County Bridge | MR5 | Ripon Sectional | ||||||
| MRD | Red Cedar DBC | MRR | Rock River DBC | MRV | Riverside Duplicate Bridge Clu | ||||||
| MSG | Sturgeon Bay DBC | MSL | Superiorland DBC | MSP | Steven Point Bridge Club | ||||||
| MST | Sparta DBC | MT4 | Three Lakes Sectional | MTA | Tuesday Swiss Teams | ||||||
| MW4 | Woodruff Sectional | MWD | Wednesday DBC | MWU | Wausau Duplicate Club |