As successful swim attempts through the Northern California Open Water Swimming Association occur, swims will be ratified on a rolling basis as the Ratification Committee reviews the data from each swim.
Three Rocks - 6.2 miles (10 km)
A true 10km marathon swim in the San Francisco Bay defined by the Northern California Open Water Swimming Association. An excellent cross-current challenge that requires specific navigation of milestones along the course in order to be ratified.| Name | Country | Route | Time | Date |
|---|---|---|---|---|
| Suzanne Heim-Bowen | USA | Anita-Harding-Alcatraz-Anita | 04:12:15 | May 28, 2019 |
| Luca Pozzi | Italy | Anita-Harding-Alcatraz-Anita | 03:41:08 | May 29, 2019 |
| Hannah Meyer | USA | Anita-Harding-Alcatraz-Anita | 03:03:30 | June 15, 2020 |
| Spencer Hammaker | USA | Anita-Harding-Alcatraz-Anita | 02:40:35 | June 16, 2020 |
| Hannah Freeman | USA | Anita-Harding-Alcatraz-Anita | 02:56:38 | September 10, 2020 |
| Amy Fischer | USA | Anita-Harding-Alcatraz-Anita | 02:57:24 | September 10, 2020 |
| Maya Merhige | USA | Anita-Harding-Alcatraz-Anita | 02:58:46 | June 2, 2021 |
| Keira Koss-Baker | USA | Anita-Alcatraz-Harding-Anita | 03:40:21 | June 18, 2021 |
| Ross G. Simmons | USA | Anita-Harding-Alcatraz-Anita | 03:14:32 | July 2, 2021 |
| Suzanne Heim-Bowen | USA | Anita-Harding-Alcatraz-Anita | 02:48:18 | May 11, 2022 |
| Torsten C. Darrell | USA | Anita-Harding-Alcatraz-Anita | 03:49:00 | June 14, 2024 |
| James Alexander | USA | Anita-Harding-Alcatraz-Anita | 03:37:52 | May 5, 2025 |