| Details
| | Park - Field
| | | Map
| | | | Games
| | Division(s)
| | | Status
| | | | Last Updated
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| 1 / B / 3 - Claremont |
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| 1 / B / 779 - Chino Hills |
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| 1 / C / 60 - Alhambra |
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| 1 / C / 214 - South Pasadena |
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| 1 / F / 10 - Palos Verdes |
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| 1 / F / 12 - South Torrance |
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| 1 / F / 16 - North Torrance |
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| 1 / G / 65 - Rancho Cucamonga |
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| 1 / G / 136 - Fontana |
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| 1 / N / 137 - Hemet |
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| 1 / P / 19 - Culver City |
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| 1 / P / 20 - Santa Monica |
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| 1 / P / 69 - Pacific Palisades |
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| 1 / P / 76 - Beverly Hills |
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| 1 / P / 78 - Hollywood-Wilshire |
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| 1 / R / 37 - Corona |
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| 1 / R / 187 - Moreno Valley |
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| 1 / R / 820 - Menifee |
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| 1 / R / 1463 - Temecula / Murrieta |
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| 1 / R / 1508 - French Valley |
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| 1 / U / 23 - Hacienda Heights |
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| 1 / U / 112 - La Verne / San Dimas |
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| | | U624-Walnut Ranch Park - Field A | | | | | | | 29 | | U14,U16,U19 | | | Open | | | | 08/01/2023 03:17 PM - RV | |
| | | U624-Walnut Ranch Park - Field A-1E | | | | | | | 21 | | U05,U06 | | | Open | | | | 08/09/2023 06:51 AM - RV | |
| | | U624-Walnut Ranch Park - Field A-1W | | | | | | | 21 | | U05,U06 | | | Open | | | | 08/09/2023 06:52 AM - RV | |
| | | U624-Walnut Ranch Park - Field A-2E | | | | | | | 21 | | U05,U06 | | | Open | | | | 08/09/2023 06:52 AM - RV | |
| | | U624-Walnut Ranch Park - Field A-2W | | | | | | | 21 | | U05,U06 | | | Open | | | | 08/09/2023 06:52 AM - RV | |
| | | U624-Walnut Ranch Park - Field A-3E | | | | | | | 10 | | U06 | | | Open | | | | 08/09/2023 06:54 AM - RV | |
| | | U624-Walnut Ranch Park - Field A-3W | | | | | | | 10 | | U06 | | | Open | | | | 08/09/2023 06:53 AM - RV | |
| | | U624-Walnut Ranch Park - Field A-4E | | | | | | | 1 | | U05 | | | Open | | | | 08/09/2023 06:54 AM - RV | |
| | | U624-Walnut Ranch Park - Field B | | | | | | | 69 | | U12 | | | Open | | | | 08/01/2023 03:17 PM - RV | |
| | | U624-Walnut Ranch Park - Field C | | | | | | | 3 | | U14,U16 | | | Open | | | | 08/01/2023 05:27 PM - RV | |
| | | U624-Walnut Ranch Park - Field CN | | | | | | | 69 | | U08,U10 | | | Open | | | | 08/01/2023 05:29 PM - RV | |
| | | U624-Walnut Ranch Park - Field CS | | | | | | | 62 | | U08,U10 | | | Open | | | | 08/01/2023 05:30 PM - RV | |
| | | U624-Walnut Ranch Park - Field DN | | | | | | | 46 | | U10 | | | Open | | | | 08/01/2023 05:27 PM - RV | |
| | | U624-Walnut Ranch Park - Field DS | | | | | | | 43 | | U10 | | | Open | | | | 08/01/2023 05:30 PM - RV | |
| 10 / D / 638 - Quartz Hill |
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| 11 / E / 59 - West Garden Grove |
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| 11 / E / 94 - La Habra |
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| 11 / E / 159 - Los Alamitos |
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| 11 / E / 177 - Long Beach / Belmont Shore |
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| 11 / K / 5 - Fountain Valley |
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| 11 / K / 55 - North Huntington Beach |
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| 11 / K / 56 - South Huntington Beach |
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| 11 / K / 117 - Central Huntington Beach |
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| 11 / K / 143 - West Huntington Beach |
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| 11 / L / 84 - Mission Viejo |
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| 11 / L / 85 - Lake Forest |
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| 11 / L / 86 - Laguna Beach |
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| 11 / L / 630 - Rancho Santa Margarita |
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| 11 / L / 889 - Aliso Viejo |
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| 11 / L / 1422 - Laguna Hills |
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| 11 / O / 41 - Laguna Niguel |
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| 11 / O / 87 - San Juan Capistrano |
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| 11 / O / 111 - San Clemente |
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| 11 / O / 1455 - Ladera Ranch |
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| 11 / O / 1678 - Rancho Mission Viejo |
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| 11 / Q / 57 - Corona del Mar |
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| 11 / Q / 97 - Newport Beach |
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| 11 / Q / 120 - Costa Mesa |
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| 11 / Q / 213 - Irvine |
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| 11 / Q / 1398 - Yorba Linda |
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| 11 / R / 127 - San Marcos |
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| 11 / R / 152 - Tierrasanta |
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| 11 / R / 780 - Kearny Mesa |
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| 11 / R / 785 - North Park |
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| 11 / R / 1505 - San Elijo |
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| 11 / S / 290 - Chula Vista |
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| 11 / S / 581 - Paradise Hills |
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| 11 / V / 89 - La Mesa |
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| 11 / V / 930 - Mountain Empire |
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| 11 / Z / 106 - Lakewood |
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| 11 / Z / 114 - Long Beach |
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| 11 / Z / 603 - Pico Rivera |
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| 11 / Z / 652 - South Gate |
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| 11 / Z / 1065 - Montebello |
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