Pacific Swimming Boys 10 & under - 50 M Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 101 | Andrew Halterman | 55.10 | 8 | B Min | BB: 54.39 (+0.71s | 1.3%) | Reno Aquatic Club | 06/23/2023 | RENO Gamble Age Group Open | |
| 102 | Fedor Evstigneev | 55.11 | 8 | B Min | BB: 54.39 (+0.72s | 1.3%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 103 | Oscar Holler | 55.28 | 9 | B Min | BB: 54.39 (+0.89s | 1.6%) | Milpitas Aquatic Club | 04/27/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 104 | Luke Chai | 55.28 | 8 | B Min | BB: 54.39 (+0.89s | 1.6%) | Pleasanton Seahawks | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 105 | Adam Ma | 55.29 | 9 | B Min | BB: 54.39 (+0.90s | 1.6%) | California Dolphins Swim Team | 04/12/2025 | PC BSW LCM C B BB+ Meet | |
| 106 | Charlie Matella | 55.42 | 9 | B Min | BB: 54.39 (+1.03s | 1.9%) | Alameda Gators | 06/08/2024 | Orinda Aquatics LCM C/B/BB+ Meet | |
| 107 | Sean Tseng | 55.43 | 10 | B Min | BB: 54.39 (+1.04s | 1.9%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 108 | Artyom Smirnoff | 55.45 | 10 | B Min | BB: 54.39 (+1.06s | 1.9%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 109 | Ethan Wang | 55.53 | 9 | B Min | BB: 54.39 (+1.14s | 2.1%) | Sunnyvale Swim Club | 06/29/2024 | DACA LCM CBA+ Meet | |
| 110 | Solomon Fox | 55.54 | 7 | B Min | BB: 54.39 (+1.15s | 2.1%) | Burlingame Aquatics | 06/09/2023 | Burlingame Aquatic Club LCM C/B/A+ Meet | |
| 111 | Emmett Adams | 55.72 | 9 | B Min | BB: 54.39 (+1.33s | 2.4%) | Reno Aquatic Club | 06/21/2024 | RENO Gamble Age Group Open | |
| 112 | Lucas Jiang | 55.76 | 8 | B Min | BB: 54.39 (+1.37s | 2.5%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 113 | Brett Baker | 55.76 | 9 | B Min | BB: 54.39 (+1.37s | 2.5%) | Burlingame Aquatics | 06/07/2024 | Burlingame Aquatic Club C/B/A+ LCM Meet | |
| 114 | Chayton Zhou | 55.87 | 8 | B Min | BB: 54.39 (+1.48s | 2.6%) | Pleasanton Seahawks | 04/12/2025 | PC BSW LCM C B BB+ Meet | |
| 115 | Ethan Valdez | 55.88 | 9 | B Min | BB: 54.39 (+1.49s | 2.7%) | Bay Club Panthers | 06/29/2024 | DACA LCM CBA+ Meet | |
| 116 | Sean Jiang | 55.96 | 10 | B Min | BB: 54.39 (+1.57s | 2.8%) | South San Francisco Aquatics | 04/19/2025 | Alto Spring Jam Meet | |
| 117 | Finn Reese | 56.13 | 9 | B Min | BB: 54.39 (+1.74s | 3.1%) | Lakeridge Swim Team | 07/12/2024 | NNA Silver State Championship Meet T&F | |
| 118 | Aaron Wang | 56.16 | 10 | B Min | BB: 54.39 (+1.77s | 3.2%) | San Ramon Valley Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 119 | Stephen Zhang | 56.35 | 10 | B Min | BB: 54.39 (+1.96s | 3.5%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 120 | Jayce Chang | 56.40 | 10 | B Min | BB: 54.39 (+2.01s | 3.6%) | Tiger Aquatics | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 121 | Luke Cheng | 56.42 | 9 | B Min | BB: 54.39 (+2.03s | 3.6%) | Otter Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 122 | Zackary Chuck | 56.50 | 8 | B Min | BB: 54.39 (+2.11s | 3.7%) | Boys & Girls Club of SF | 04/27/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 123 | Alexander Fang | 56.52 | 9 | B Min | BB: 54.39 (+2.13s | 3.8%) | Reno Aquatic Club | 06/21/2024 | RENO Gamble Age Group Open | |
| 124 | Aaron Hung | 56.53 | 9 | B Min | BB: 54.39 (+2.14s | 3.8%) | Palo Alto Stanford Aquatics | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 125 | Johnathan Wang | 56.70 | 8 | B Min | BB: 54.39 (+2.31s | 4.1%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 126 | Atticus Walker | 56.73 | 9 | B Min | BB: 54.39 (+2.34s | 4.1%) | Alto Swim Club | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 127 | Tommy Falzon | 56.74 | 9 | B Min | BB: 54.39 (+2.35s | 4.1%) | Bay Club Panthers | 05/18/2024 | PASA Zone 1N LCM C/B/A+ Meet | |
| 128 | Luke Lim | 56.76 | 9 | B Min | BB: 54.39 (+2.37s | 4.2%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 129 | Sammuel Zhou | 56.87 | 10 | B Min | BB: 54.39 (+2.48s | 4.4%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 130 | Muyang He | 57.02 | 7 | B Min | BB: 54.39 (+2.63s | 4.6%) | Santa Clara Swim Club | 05/17/2024 | Quicksilver Swimming LCM C/B/A+ Meet | |
| 131 | Tobin Reynolds | 57.04 | 9 | B Min | BB: 54.39 (+2.65s | 4.6%) | AC Swim Club | 05/17/2024 | SRN LCM C/B/A+ Meet | |
| 132 | Steve Lin | 57.15 | 9 | B Min | BB: 54.39 (+2.76s | 4.8%) | Unattached | 06/07/2024 | DeAnza Cupertino Aquatics LCM C/B/A+ Meet | |
| 133 | Ethan Qu | 57.40 | 8 | B Min | BB: 54.39 (+3.01s | 5.2%) | Santa Clara Swim Club | 05/17/2024 | Quicksilver Swimming LCM C/B/A+ Meet | |
| 134 | Aurik Ghosh Moulick | 57.45 | 9 | B Min | BB: 54.39 (+3.06s | 5.3%) | Milpitas Aquatic Club | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 135 | Alex Sigmundson | 57.61 | 10 | B Min | BB: 54.39 (+3.22s | 5.6%) | Terrapins Swim Team | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 136 | James Liu | 57.65 | 9 | B Min | BB: 54.39 (+3.26s | 5.7%) | Quicksilver Swimming | 05/17/2024 | Quicksilver Swimming LCM C/B/A+ Meet | |
| 137 | Penghao Yu | 57.66 | 8 | B Min | BB: 54.39 (+3.27s | 5.7%) | Palo Alto Stanford Aquatics | 06/07/2024 | Burlingame Aquatic Club C/B/A+ LCM Meet | |
| 138 | Yunus Mukhamadieva | 57.67 | 9 | B Min | BB: 54.39 (+3.28s | 5.7%) | Brentwood Seawolves | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | |
| 139 | Jon He | 57.76 | 9 | B Min | BB: 54.39 (+3.37s | 5.8%) | Milpitas Aquatic Club | 06/22/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 140 | Alex Zhong | 57.85 | 7 | B Min | BB: 54.39 (+3.46s | 6.0%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 141 | Aiden Hu | 57.98 | 9 | B Min | BB: 54.39 (+3.59s | 6.2%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 142 | Ryan Zhang | 58.01 | 9 | B Min | BB: 54.39 (+3.62s | 6.2%) | Palo Alto Stanford Aquatics | 06/23/2024 | 2024 PC ALTO Long Course CBA+ | |
| 143 | Elias Lien | 58.09 | 7 | B Min | BB: 54.39 (+3.70s | 6.4%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 144 | Daniel Nagaoka | 58.09 | 8 | B Min | BB: 54.39 (+3.70s | 6.4%) | Quicksilver Swimming | 06/25/2024 | 2024 QSS Intersquad | |
| 145 | Jonah Hoffman | 58.15 | 9 | B Min | BB: 54.39 (+3.76s | 6.5%) | Humboldt Swim Club | 05/17/2024 | SRN LCM C/B/A+ Meet | |
| 146 | Matthew Zhou | 58.25 | 9 | B Min | BB: 54.39 (+3.86s | 6.6%) | Quicksilver Swimming | 05/17/2024 | Quicksilver Swimming LCM C/B/A+ Meet | |
| 147 | Aaron Li | 58.28 | 10 | B Min | BB: 54.39 (+3.89s | 6.7%) | Palo Alto Stanford Aquatics | 06/10/2023 | 2023 PC BAC Long Course CBA+ | |
| 148 | Deren Chai | 58.30 | 9 | B Min | BB: 54.39 (+3.91s | 6.7%) | Pleasanton Seahawks | 04/21/2024 | 2024 PC BSW Long Course C/B/BB+ | |
| 149 | Xavier Pok | 58.46 | 9 | B Min | BB: 54.39 (+4.07s | 7.0%) | Bulldog Swim Club | 04/27/2024 | ALTO Swim Club LCM C/B/A+ Meet | |
| 150 | Samuel Sun | 58.49 | 9 | B Min | BB: 54.39 (+4.10s | 7.0%) | Alto Swim Club | 06/29/2024 | ALTO Summer Swelter LCM Invitational | |
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.