| Name | Address | Games | Actions |
|---|---|---|---|
| Olympia Stadium | 7211 Perkins Rd, Baton Rouge, LA, 70808 | 6 | |
| Orange County Great Park | 6950 Marine Way, Irvine, CA, 92618 | 1 | |
| Oregon | 18th Agate Alley, Eugene, OR, 97403 | 3 | |
| Oregon - Nex-Turf Field | Eugene, OR | 3 | |
| Oregon State University | Student Legacy Park, Corvallis, OR, 97331 | 6 | |
| O'Shaughnessy Stadium | 2115 Summit Ave, St. Paul, MN, 55105 | 1 | |
| Oxbridge Academy | 3151 N Millitary Trail, West Palm Beach, FL, 33409 | 3 | |
| Pacific | Stockton, CA | 7 | |
| Pacific Lutheran University | 1000 124th St South, Tacoma, WA, 98447 | 6 | |
| Palisades Charter High School | 15777 Bowdoin St, Los Angeles, CA, 90272 | 1 |