Pacific Swimming Boys 10 & under - 50 M Back
These rankings show the swimmers' placement within their Local Swimming Committee (LSC).They are based on the swimmer's personal best, their current age category, and team; and are calculated from all the meets results.
For each swimmer, you can find the swimmer's ranking, their best time, the corresponding time standard, as well as how much faster the swimmer needs to be to reach the next level. The last columns provide information about the event they achieved this personal best.
Swimmer Rankings
| Ranking | Name | Time | Age | Standard | to Next Standard | Team | Date | Meet | |
|---|---|---|---|---|---|---|---|---|---|
| 51 | Yuri Evstigneev | 44.81 | 10 | BB Min | A: 43.09 (+1.72s | 3.8%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 52 | Sean Tseng | 44.81 | 10 | BB Min | A: 43.09 (+1.72s | 3.8%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 53 | Miro Wang | 44.94 | 9 | BB Min | A: 43.09 (+1.85s | 4.1%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 54 | Ethan Kang | 44.97 | 9 | BB Min | A: 43.09 (+1.88s | 4.2%) | Santa Clara Swim Club | 06/28/2024 | Valley Splash LCM C/B/A+ Meet | |
| 55 | Jozua Sugianto | 45.00 | 9 | BB Min | A: 43.09 (+1.91s | 4.2%) | California Dolphins Swim Team | 05/10/2025 | PC SRVA LCM C B BB+ | |
| 56 | Adrian Tu | 45.01 | 9 | BB Min | A: 43.09 (+1.92s | 4.3%) | Walnut Creek Aquabears | 05/10/2025 | PC SRVA LCM C B BB+ | |
| 57 | Li Huang | 45.17 | 8 | BB Min | A: 43.09 (+2.08s | 4.6%) | Santa Clara Swim Club | 06/09/2023 | SCSC LCM Intrasquad Meet | |
| 58 | Emmett Chen | 45.22 | 9 | BB Min | A: 43.09 (+2.13s | 4.7%) | Crow Canyon Sharks | 06/29/2024 | ALTO Summer Swelter LCM Invitational | |
| 59 | George Yu | 45.46 | 9 | BB Min | A: 43.09 (+2.37s | 5.2%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 60 | Jayden Zhu | 45.68 | 10 | BB Min | A: 43.09 (+2.59s | 5.7%) | Otter Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 61 | Ishaan Karunanayake | 45.97 | 9 | BB Min | A: 43.09 (+2.88s | 6.3%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 62 | Ethan Liu | 46.14 | 9 | BB Min | A: 43.09 (+3.05s | 6.6%) | Milpitas Aquatic Club | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 63 | Ethan Wang | 46.16 | 8 | BB Min | A: 43.09 (+3.07s | 6.7%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 64 | Trevor Jan | 46.17 | 9 | BB Min | A: 43.09 (+3.08s | 6.7%) | Alto Swim Club | 06/22/2024 | 2024 PC ALTO Long Course CBA+ | |
| 65 | Stephen Zhang | 46.22 | 10 | BB Min | A: 43.09 (+3.13s | 6.8%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 66 | Louis Yu | 46.38 | 7 | BB Min | A: 43.09 (+3.29s | 7.1%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 67 | Robert Obermeyer | 46.43 | 9 | BB Min | A: 43.09 (+3.34s | 7.2%) | Albany Armada Aquatics | 06/08/2024 | Orinda Aquatics LCM C/B/BB+ Meet | |
| 68 | James Zanutto | 46.57 | 6 | BB Min | A: 43.09 (+3.48s | 7.5%) | Burlingame Aquatics | 05/18/2024 | ALTO LCM May Cray Invitational | |
| 69 | Aaron Kuusela | 46.57 | 10 | BB Min | A: 43.09 (+3.48s | 7.5%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 70 | Darren Zhao | 46.76 | 8 | BB Min | A: 43.09 (+3.67s | 7.8%) | Santa Clara Swim Club | 07/20/2024 | ALTO LCM Last Splash Invitational Meet | |
| 71 | Jordan Dimaio | 46.79 | 10 | BB Min | A: 43.09 (+3.70s | 7.9%) | Otter Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 72 | Maxwell Tam | 46.84 | 10 | BB Min | A: 43.09 (+3.75s | 8.0%) | Burlingame Aquatics | 04/19/2025 | Alto Spring Jam Meet | |
| 73 | Daniel Reschke | 46.84 | 9 | BB Min | A: 43.09 (+3.75s | 8.0%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 74 | Alexander Fang | 47.02 | 8 | BB Min | A: 43.09 (+3.93s | 8.4%) | Reno Aquatic Club | 04/13/2024 | 2024 SN Spring Splash Long Course Swim Meet | |
| 75 | Jood Abu Raya | 47.11 | 9 | BB Min | A: 43.09 (+4.02s | 8.5%) | Daly City Dolphins | 06/29/2024 | DACA LCM CBA+ Meet | |
| 76 | Thomas Sedano | 47.16 | 8 | BB Min | A: 43.09 (+4.07s | 8.6%) | Monterey Bay Swim Club | 05/18/2024 | San Benito Aquatics LCM C/B/A+ Meet | |
| 77 | Leo Ferrante | 47.29 | 10 | BB Min | A: 43.09 (+4.20s | 8.9%) | Palo Alto Stanford Aquatics | 05/24/2025 | 2025 Mike Snyder Memorial | |
| 78 | Jackson Lee | 47.31 | 8 | BB Min | A: 43.09 (+4.22s | 8.9%) | Pacifica Sea Lions | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 79 | Will Dai | 47.44 | 10 | BB Min | A: 43.09 (+4.35s | 9.2%) | San Ramon Valley Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 80 | Jason Ye | 47.50 | 9 | BB Min | A: 43.09 (+4.41s | 9.3%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 81 | Isaac Ma | 47.60 | 9 | BB Min | A: 43.09 (+4.51s | 9.5%) | California Dolphins Swim Team | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 82 | Aaron Hung | 47.77 | 9 | BB Min | A: 43.09 (+4.68s | 9.8%) | Palo Alto Stanford Aquatics | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 83 | Alex Sigmundson | 47.77 | 10 | BB Min | A: 43.09 (+4.68s | 9.8%) | Terrapins Swim Team | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 84 | Sammuel Zhou | 47.97 | 10 | BB Min | A: 43.09 (+4.88s | 10.2%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 85 | Noah Jagdev | 47.98 | 9 | BB Min | A: 43.09 (+4.89s | 10.2%) | San Ramon Valley Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 86 | Emilio Azevedo | 47.99 | 9 | BB Min | A: 43.09 (+4.90s | 10.2%) | Quicksilver Swimming | 05/22/2024 | Quicksilver LCM Micro Meet - SJ1 Summer League | |
| 87 | Tommy Falzon | 48.16 | 9 | BB Min | A: 43.09 (+5.07s | 10.5%) | Bay Club Panthers | 06/07/2024 | Burlingame Aquatic Club C/B/A+ LCM Meet | |
| 88 | Penghao Yu | 48.21 | 9 | BB Min | A: 43.09 (+5.12s | 10.6%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 89 | Ryan Zhang | 48.31 | 9 | BB Min | A: 43.09 (+5.22s | 10.8%) | Palo Alto Stanford Aquatics | 06/29/2024 | DACA LCM CBA+ Meet | |
| 90 | Hans Jensen | 48.62 | 10 | BB Min | A: 43.09 (+5.53s | 11.4%) | Diablo Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 91 | Dominic Allen | 48.64 | 8 | BB Min | A: 43.09 (+5.55s | 11.4%) | Crow Canyon Sharks | 05/25/2024 | Tiger Aquatics LCM Age Group Open Meet | |
| 92 | Owen Zhuang | 48.77 | 8 | BB Min | A: 43.09 (+5.68s | 11.6%) | Santa Clara Swim Club | 07/20/2024 | ALTO LCM Last Splash Invitational Meet | |
| 93 | Eddie Bi | 48.81 | 8 | BB Min | A: 43.09 (+5.72s | 11.7%) | California Dolphins Swim Team | 04/12/2025 | PC BSW LCM C B BB+ Meet | |
| 94 | Jamie Pan | 48.81 | 9 | BB Min | A: 43.09 (+5.72s | 11.7%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 95 | Demian Jarmy | 48.84 | 9 | BB Min | A: 43.09 (+5.75s | 11.8%) | Pleasanton Seahawks | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 96 | Leo Liao | 48.86 | 9 | BB Min | A: 43.09 (+5.77s | 11.8%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 97 | Cole King-thomas | 48.87 | 9 | BB Min | A: 43.09 (+5.78s | 11.8%) | Sonoma Sea Dragons | 06/22/2024 | NVST LCM Last Chance to AGC C/B/A+ Meet | |
| 98 | Chayton Zhou | 48.87 | 8 | BB Min | A: 43.09 (+5.78s | 11.8%) | Pleasanton Seahawks | 04/12/2025 | PC BSW LCM C B BB+ Meet | |
| 99 | Lucas Jiang | 48.88 | 8 | BB Min | A: 43.09 (+5.79s | 11.8%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 100 | Charles Li | 48.91 | 9 | BB Min | A: 43.09 (+5.82s | 11.9%) | Sunnyvale Swim Club | 06/29/2024 | DACA LCM CBA+ Meet | |
Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.