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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Zachary Pechan | 28.31 | 17 | AAAA Min | Monterey Bay Swim Club | 06/26/2025 | 2025 TYR GO Challenge | ||
| 2 | Kyle Thompson | 30.64 | 15 | AAAA Min | Monterey Bay Swim Club | 06/26/2025 | 2025 TYR GO Challenge | ||
| 3 | Landon Onitsuka | 30.64 | 16 | AAAA Min | Monterey Bay Swim Club | 06/26/2025 | 2025 TYR GO Challenge | ||
| 4 | Nicholas Walsh | 31.91 | 15 | AAAA Min | Monterey Bay Swim Club | 06/26/2025 | 2025 TYR GO Challenge | ||
| 5 | Aaron Bell | 32.22 | 13 | AAAA Min | Monterey Bay Swim Club | 06/26/2025 | 2025 TYR GO Challenge | ||
| 6 | Dylan Chhor | 33.76 | 16 | AAAA Min | Monterey Bay Swim Club | 06/26/2025 | 2025 TYR GO Challenge | ||
| 7 | Albert Xiao | 35.45 | 10 | AAAA Min | Santa Clara Swim Club | 07/31/2025 | 2025 Long Course Far Western Championship | ||
| 8 | Rubix Szolusha | 37.05 | 9 | AAA Min | AAAA: 36.99 (+0.06s | 0.2%) | Santa Clara Swim Club | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 9 | Robert Legg | 37.35 | 9 | AAA Min | AAAA: 36.99 (+0.36s | 1.0%) | Pleasanton Seahawks | 05/10/2025 | PC SRVA LCM C B BB+ | |
| 10 | Stephen Huang | 38.07 | 9 | AAA Min | AAAA: 36.99 (+1.08s | 2.8%) | DeAnza Cupertino Aquatics | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 11 | Yuke Chen | 38.14 | 10 | AAA Min | AAAA: 36.99 (+1.15s | 3.0%) | DeAnza Cupertino Aquatics | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 12 | Ethan Locke | 38.65 | 9 | AAA Min | AAAA: 36.99 (+1.66s | 4.3%) | Unattached | 04/19/2025 | Alto Spring Jam Meet | |
| 13 | Maxwell Peng | 38.92 | 12 | AAA Min | AAAA: 36.99 (+1.93s | 5.0%) | Monterey Bay Swim Club | 06/21/2025 | 2025 FDST June A B Modified LC Invitational | |
| 14 | Kayden Masongsong | 39.28 | 10 | AA Min | AAA: 38.99 (+0.29s | 0.7%) | Terrapins Swim Team | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 15 | Ronel Acot | 39.30 | 10 | AA Min | AAA: 38.99 (+0.31s | 0.8%) | Palo Alto Stanford Aquatics | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 16 | Aurelius Lien | 39.41 | 8 | AA Min | AAA: 38.99 (+0.42s | 1.1%) | Santa Clara Swim Club | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 17 | Lucas Zhou | 39.48 | 10 | AA Min | AAA: 38.99 (+0.49s | 1.2%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 18 | Marco Sun | 40.08 | 9 | AA Min | AAA: 38.99 (+1.09s | 2.7%) | Pleasanton Seahawks | 04/12/2025 | PC BSW LCM C B BB+ Meet | |
| 19 | Sinan Ozgur | 40.68 | 9 | AA Min | AAA: 38.99 (+1.69s | 4.2%) | Pleasanton Seahawks | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 20 | Sebastian Guevara | 41.33 | 9 | A Min | AA: 41.09 (+0.24s | 0.6%) | Alto Swim Club | 07/12/2024 | Adam Szmidt LCM 14 & Under Age Group Championship (host: TERA) | |
| 21 | Adam Li | 41.35 | 10 | A Min | AA: 41.09 (+0.26s | 0.6%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 22 | Charles Liu Bates | 41.65 | 10 | A Min | AA: 41.09 (+0.56s | 1.3%) | California Dolphins Swim Team | 05/10/2025 | PC SRVA LCM C B BB+ | |
| 23 | Jack Swaffin-Smith | 41.91 | 10 | A Min | AA: 41.09 (+0.82s | 2.0%) | Unattached | 06/20/2025 | 2025 Falfins Long Course Open | |
| 24 | Mateo Finegold | 41.94 | 10 | A Min | AA: 41.09 (+0.85s | 2.0%) | Palo Alto Stanford Aquatics | 05/24/2025 | 2025 Mike Snyder Memorial | |
| 25 | Nicholas Liu | 42.21 | 8 | A Min | AA: 41.09 (+1.12s | 2.7%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 26 | Ryan Latronica | 42.29 | 9 | A Min | AA: 41.09 (+1.20s | 2.8%) | Hills Hurricane Swimming | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 27 | Lucas Jiang | 42.39 | 9 | A Min | AA: 41.09 (+1.30s | 3.1%) | Quicksilver Swimming | 07/12/2024 | Adam Szmidt LCM 14 & Under Age Group Championship (host: TERA) | |
| 28 | Lucas Guo | 42.44 | 10 | A Min | AA: 41.09 (+1.35s | 3.2%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 29 | Lucas Pan | 43.03 | 8 | A Min | AA: 41.09 (+1.94s | 4.5%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 30 | Shunsuke Suzuki | 43.11 | 9 | BB Min | A: 43.09 (+0.02s | 0.0%) | Palo Alto Stanford Aquatics | 04/26/2025 | Merced Skimmers Long Course Meet | |
| 31 | Deren Chai | 43.33 | 9 | BB Min | A: 43.09 (+0.24s | 0.6%) | Pleasanton Seahawks | 06/08/2024 | 2024 PC CDST Long Course C/B/BB+ | |
| 32 | Deren Chai | 43.33 | 9 | BB Min | A: 43.09 (+0.24s | 0.6%) | Pleasanton Seahawks | 06/08/2024 | California Dolphins Swim Team LCM C/B/BB+ Meet | |
| 33 | Nico Losada-Saputo | 43.72 | 9 | BB Min | A: 43.09 (+0.63s | 1.4%) | Orinda Aquatics | 05/10/2025 | PC SRVA LCM C B BB+ | |
| 34 | Conner Lo | 44.16 | 10 | BB Min | A: 43.09 (+1.07s | 2.4%) | DeAnza Cupertino Aquatics | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 35 | Eli Shapiro | 44.31 | 9 | BB Min | A: 43.09 (+1.22s | 2.8%) | Lakeridge Swim Team | 05/24/2024 | Intermountain Classic Age Group Open (host: CARS) | |
| 36 | Elliott Chen | 44.39 | 10 | BB Min | A: 43.09 (+1.30s | 2.9%) | DeAnza Cupertino Aquatics | 06/06/2025 | 2025 DACA LC CBA+ Meet | |
| 37 | Jason Feng | 44.39 | 9 | BB Min | A: 43.09 (+1.30s | 2.9%) | Boys & Girls Club of SF | 04/19/2025 | Alto Spring Jam Meet | |
| 38 | Martin Decotigny | 44.51 | 9 | BB Min | A: 43.09 (+1.42s | 3.2%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 39 | Nolan Lu | 44.70 | 10 | BB Min | A: 43.09 (+1.61s | 3.6%) | DeAnza Cupertino Aquatics | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 40 | Luke Chai | 44.70 | 8 | BB Min | A: 43.09 (+1.61s | 3.6%) | Pleasanton Seahawks | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 41 | Ming Chong | 44.71 | 10 | BB Min | A: 43.09 (+1.62s | 3.6%) | Burlingame Aquatics | 04/19/2025 | Alto Spring Jam Meet | |
| 42 | Tavis Williams | 44.80 | 10 | BB Min | A: 43.09 (+1.71s | 3.8%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 43 | 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 | |
| 44 | 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 | |
| 45 | 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 | |
| 46 | 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 | |
| 47 | 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+ | |
| 48 | 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+ | |
| 49 | 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 | |
| 50 | 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 | |
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.