| Code | Site | Code | Site | Code | Site | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| MC0 | Chicago Nationals | MC1 | Crystal Lake Regional | MC2 | Chicago Regional | ||||||
| ME1 | Eau Claire Regional | MF1 | Fitchburg Regional | MG1 | Lake Geneva Regional | ||||||
| MG2 | Green Bay Regional | MG3 | Glenview Regional | MH1 | Harris Regional | ||||||
| MM1 | Milwaukee Regional | MN1 | Northbrook Regional | MR1 | Rosemont Regional | ||||||
| MS1 | St Charles Regional | MS2 | Schaumburg Regional | MX1 | D13 NAP | ||||||
| MX2 | D13 GNT | MZ9 | D13 STaC |