| Ryan M | Yoo | M | San Ramon | 16 | 2050293746 | Grizzly Track Club (84) | 01/01/26 |
| Grace E | York | F | Walnut Creek | 16 | 2050083893 | Diablo Valley Track & Field (153) | 01/01/26 |
| Logan | Yoshida | M | Fremont | 13 | 2050264304 | Mission Valley Track & Field Club (253) | 01/01/26 |
| Andrew M | Yost | M | San Jose | 14 | 2050367455 | Luath Track & Field Club (21) | 06/02/26 |
| David M | Yott | M | Walnut Creek | 45 | 1920762042 | Walnut Creek Track Club (4) | 01/01/26 |
| Theodore | Yott | M | Walnut Creek | 15 | 2050325058 | Cougar Vault (26) | 01/04/26 |
| Haoren | You | M | Sacramento | 11 | 2050340187 | William Land Elementary (46) | 12/05/25 |
| Haoyu | You | M | Sacramento | 11 | 2050340188 | William Land Elementary (46) | 12/05/25 |
| Mark J | Youmans | M | Cottonwood | 70 | 1400506661 | | 01/01/26 |
| Apollo | Young | M | Lodi | 9 | 2050359206 | Lodi Track Club (185) | 05/12/26 |
| Bob | Young | M | Grover Beach | 91 | 2050194269 | | 01/02/26 |
| Fiona | Young | F | San Francisco | 30 | 2050039681 | West Valley Track Club (179) | 07/15/26 |
| Georgia S | Young | F | SAN FRANCISCO | 49 | 1920515598 | Impala Racing Team (156) | 01/01/26 |
| Grace | Young | F | Lodi | 11 | 2050355464 | Lodi Track Club (185) | 04/20/26 |
| Hakeem | Young | M | Richmond | 16 | 1608903736 | East Bay Elite Track Club (36) | 02/28/26 |
| James F | Young | M | WHITE HOUSE | 65 | 1404455717 | Golden Valley Harriers (12) | 01/01/26 |
| Kyree | Young | M | Sacramento | 12 | 2050324596 | Playmakers Elite (26) | 05/20/26 |
| Regina | Young | F | Oakland | 9 | 2050343264 | Oakland PAL (278) | 01/11/26 |
| Riya | Young | F | San Francisco | 59 | 1406958411 | Pamakids (154) | 02/02/26 |
| Scott M | Young | M | Gilroy | 44 | 1903632899 | | 01/01/26 |
| Easton | Young-Perez | M | San Ramon | 15 | 2050313329 | California Grizzlies (41) | 01/01/26 |
| Tatiana | Youngblood | F | Elk Grove | 17 | 2050345711 | | 02/02/26 |
| Zahara | Youngblood | F | Oakland | 9 | 2050234874 | Oakland Cubs (88) | 01/05/26 |
| Cameron | Yount | M | Tracy | 15 | 2050214043 | 5 NORTH (79) | 06/17/26 |
| Cassadee N | Yount | F | Tracy | 13 | 2050189353 | 5 NORTH (79) | 06/17/26 |
| Cora M | Yount | F | Tracy | 11 | 2050067688 | 5 NORTH (79) | 06/17/26 |
| Jamie | Yu | F | San francisco | 30 | 2050301564 | Impala Racing Team (156) | 01/02/26 |
| Nicholas | Yu | M | San Ramon | 16 | 2050293969 | Grizzly Track Club (84) | 06/07/26 |
| Evan | Yuan | M | Redwood City | 8 | 2050350243 | | 03/13/26 |
| Thea | Yuan | F | REDWOOD CITY | 9 | 2050286278 | Run Club Menlo Park (72) | 12/31/25 |
| RAMON | ZACARIAS | M | Watsonville | 52 | 2050084867 | Santa Cruz Track Club (38) | 01/01/26 |
| Shane | Zade | M | Placerville | 53 | 2050341767 | | 12/29/25 |
| Eric | Zaffiro | M | San Jose | 43 | 2050290121 | | 01/02/26 |
| Siena | Zaid | F | Sacramento | 8 | 2050295290 | Sac-Town Coyotes (35) | 01/01/26 |
| Talia | Zaid | F | Sacramento | 10 | 2050211251 | Sac-Town Coyotes (35) | 01/01/26 |
| Yael | Zaid | F | Sacramento | 12 | 2050211252 | Sac-Town Coyotes (35) | 01/01/26 |
| Samuel | Zajic | M | San Francisco | 9 | 2050344272 | Team Onalysis (56) | 01/18/26 |
| Jack | Zakarian | M | Orinda | 74 | 1508660105 | Lake Merritt Joggers and Striders Race Team (93) | 02/04/26 |
| Zoey | Zakem | F | Mill Valley | 15 | 2050344161 | Marin Waves Track & Field Club (36) | 01/17/26 |
| Jeffrey G | Zambo | M | ARROYO GRANDE | 56 | 2050301775 | Central Coast Peregrines Track Club (122) | 03/09/26 |
| Laura | zander | F | Reno | 51 | 2050375415 | | 07/04/26 |
| Kassian G | Zanon | M | Pleasanton | 16 | 2050314517 | Falcon Track Club (92) | 06/16/26 |
| Bridget A | Zapata | F | Oakland | 36 | 1508665690 | Impala Racing Team (156) | 01/01/26 |
| Camilla N | Zapien | F | Turlock | 9 | 2050343504 | Turlock Flyers Track Club (22) | 01/12/26 |
| Micah | Zarate | M | Pleasanton | 13 | 2050362081 | Falcon Track Club (92) | 05/21/26 |
| Catherine | Zaretzki | F | Los Altos | 16 | 2050316186 | | 02/03/26 |
| Anthony (AJ) | Zavadil | M | East Palo Alto | 10 | 2050373522 | East Palo Alto Greyhounds (48) | 06/18/26 |
| Charlie | Zavadil | F | East Palo Alto | 8 | 2050373521 | East Palo Alto Greyhounds (48) | 06/18/26 |
| Rodrigo | Zavala | M | Greenfield | 17 | 2050310892 | Central Coast Track Club (117) | 06/10/26 |
| Tegan A | Zavala | F | Castro Valley | 13 | 2050196921 | Oakland PAL (278) | 01/05/26 |
| Riley Z | Zavatson | F | Davis | 15 | 2050320543 | Delta Hawks (18) | 12/31/25 |
| Kyle | Zawalski | M | San Jose | 16 | 2050366535 | SF Striders Youth Track (59) | 06/01/26 |
| Xavier N | Zazaboi | M | San Jose | 10 | 2050360477 | | 05/17/26 |
| Margot A | Zemke | F | Elk Grove | 17 | 2050270902 | Trailblazers Track Club (55) | 04/13/26 |
| Lindy | Zeng | F | San Francisco | 30 | 1820347548 | West Valley Track Club (179) | 01/21/26 |
| Christopher L | Zepeda | M | East Garrison | 49 | 1407045184 | | 01/01/26 |
| Karissa Maria | Zepeda | F | Soledad | 16 | 2050373371 | East Striders (18) | 06/17/26 |
| Leonardo | Zepeda | M | Tracy | 12 | 2050357633 | 5 NORTH (79) | 05/04/26 |
| MAC | ZHANG | M | Mountain View | 15 | 2050266175 | Menlo iGreyhounds TC (27) | 01/02/26 |
| Ruolin | Zhang | F | Santa Clara | 10 | 2050331292 | California Grizzlies (41) | 06/24/26 |
| Yue | Zhang | M | Union City | 44 | 2050353573 | | 04/08/26 |
| Jessica | Zhao | F | | 15 | 2050363351 | | 05/25/26 |
| Chloe | Zheng | F | Menlo Park | 11 | 2050339635 | | 11/29/25 |
| Tie | Zheng | M | Palo Alto | 30 | 2050365785 | Peninsula Distance Club (60) | 05/30/26 |
| Emily | Zhong | F | San Francisco | 28 | 2050332919 | Impala Racing Team (156) | 01/02/26 |
| Evelyn Y | Zhou | F | Fremont | 8 | 2050339250 | | 11/22/25 |
| Mackenzie Rose | Zilsdorf | F | Portola | 17 | 2050368883 | N-Spire Track and Field Club (NTFC) (18) | 06/05/26 |
| Leandra J | Zimmermann | F | San Francisco | 29 | 2050284898 | Impala Racing Team (156) | 05/04/26 |
| Kali B | Zivitz | F | San Francisco | 58 | 1819910496 | Pamakids (154) | 01/01/26 |
| Sophia | Zong | F | Pleasanton | 16 | 2050330825 | Falcon Track Club (92) | 01/05/26 |
| Will A | Zuercher | M | Mill Valley | 16 | 2050369675 | Marin Youth Track Club (13) | 06/08/26 |
| Betinho | Zunguze | M | Pacific Grove | 17 | 2050359913 | Maneuver Athletics (52) | 05/15/26 |
| Nathan | Zuno | M | Reno | 15 | 2050365430 | N-Spire Track and Field Club (NTFC) (18) | 05/30/26 |
| Michael | Zygaczenko | M | Brentwood | 72 | 1507477071 | Aggie Running Club (102) | 01/01/26 |