| Name | Address | Games | Actions |
|---|---|---|---|
| Oklahoma State University | Stillwater, OK | 2 | |
| Olguin | 3210 S. Alma St., San Pedro, CA, 90731 | 4 | |
| Olympia Stadium | 7211 Perkins Rd, Baton Rouge, LA, 70808 | 7 | |
| Oregon | 18th Agate Alley, Eugene, OR, 97403 | 2 | |
| Oregon - Nex-Turf Field | Eugene, OR | 2 | |
| Oregon State University | Student Legacy Park, Corvallis, OR, 97331 | 3 | |
| O'Shaughnessy Stadium | 2115 Summit Ave, St. Paul, MN, 55105 | 3 | |
| Pacific | Stockton, CA | 5 | |
| Pacific Lutheran University | 1000 124th St South, Tacoma, WA, 98447 | 5 | |
| Palm Beach Atlantic | Rinker Athletic Campus, West Palm Beach, FL, 33405 | 4 |