Pacific Swimming Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 101 | Adam Ma | 39.92 | 10 | BB Min | A: 37.59 (+2.33s | 5.8%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 102 | Noah Chiu | 39.96 | 10 | BB Min | A: 37.59 (+2.37s | 5.9%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 103 | Channing Pepper | 39.98 | 10 | BB Min | A: 37.59 (+2.39s | 6.0%) | Seals Aquatics | 03/07/2026 | Napa Valley Swim Team Swimming Towards Spring | |
| 104 | Arwin Safaee | 40.03 | 10 | BB Min | A: 37.59 (+2.44s | 6.1%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 105 | Maddox Merz | 40.07 | 9 | BB Min | A: 37.59 (+2.48s | 6.2%) | Los Gatos Swim Club | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 106 | Daniel Nagaoka | 40.15 | 10 | BB Min | A: 37.59 (+2.56s | 6.4%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 107 | Chinmay Joshi | 40.19 | 9 | BB Min | A: 37.59 (+2.60s | 6.5%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 108 | Elias Lien | 40.31 | 8 | BB Min | A: 37.59 (+2.72s | 6.7%) | Santa Clara Swim Club | 09/27/2025 | 2025 MAC Season Kick Off | |
| 109 | Sam Beck | 40.35 | 10 | BB Min | A: 37.59 (+2.76s | 6.8%) | Lakeridge Swim Team | 02/06/2026 | 2026 Valentines Day Age Group Open | |
| 110 | Daniel Kalinovski | 40.36 | 10 | BB Min | A: 37.59 (+2.77s | 6.9%) | Otter Swim Club | 03/28/2026 | LAMV C B A+ Meet | |
| 111 | Alex Joy | 40.42 | 10 | BB Min | A: 37.59 (+2.83s | 7.0%) | Los Altos Mountain View Aquati | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 112 | Jeremy Zhao | 40.46 | 9 | BB Min | A: 37.59 (+2.87s | 7.1%) | Quicksilver Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 113 | Ryan Chen | 40.53 | 10 | BB Min | A: 37.59 (+2.94s | 7.3%) | DeAnza Cupertino Aquatics | 03/28/2026 | LAMV C B A+ Meet | |
| 114 | Rhys Beyeler-Evans | 40.56 | 10 | BB Min | A: 37.59 (+2.97s | 7.3%) | Piedmont Swim Team | 10/18/2025 | PC CDST SC C B BB+ | |
| 115 | Luke Xu | 40.57 | 10 | BB Min | A: 37.59 (+2.98s | 7.3%) | California Dolphins Swim Team | 12/12/2025 | Winter SC Age Group Championships | |
| 116 | Banyan Villagomez | 40.59 | 10 | BB Min | A: 37.59 (+3.00s | 7.4%) | Humboldt Swim Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 117 | Kaleb Luu | 40.61 | 9 | BB Min | A: 37.59 (+3.02s | 7.4%) | Pleasanton Seahawks | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 118 | Nakai LaMere | 40.63 | 10 | BB Min | A: 37.59 (+3.04s | 7.5%) | Quicksilver Swimming | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 119 | Daniel Heilman | 40.63 | 10 | BB Min | A: 37.59 (+3.04s | 7.5%) | San Francisco Seals Swim Team | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 120 | Kai Kitamori | 40.67 | 10 | BB Min | A: 37.59 (+3.08s | 7.6%) | East Bay Bat Rays | 03/28/2026 | Albany Armada Aquatics SC C B BB+ | |
| 121 | Asher Young | 40.70 | 10 | BB Min | A: 37.59 (+3.11s | 7.6%) | Terrapins Swim Team | 07/26/2025 | Zone 2 Summer Championships | |
| 122 | Nicholas Thach | 40.76 | 10 | BB Min | A: 37.59 (+3.17s | 7.8%) | Oakland Undercurrent Swim Team | 03/14/2026 | 2026 NNA AGO | |
| 123 | Tyler Mirasol | 40.80 | 9 | BB Min | A: 37.59 (+3.21s | 7.9%) | Quicksilver Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 124 | Noah Wu | 40.82 | 10 | BB Min | A: 37.59 (+3.23s | 7.9%) | Palo Alto Stanford Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | |
| 125 | Jonathan Chen | 40.83 | 9 | BB Min | A: 37.59 (+3.24s | 7.9%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 126 | Micah Parris | 40.84 | 8 | BB Min | A: 37.59 (+3.25s | 8.0%) | Sunnyvale Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 127 | Jacob Chen | 40.95 | 9 | BB Min | A: 37.59 (+3.36s | 8.2%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 128 | Jaxon Mendoza | 41.12 | 10 | BB Min | A: 37.59 (+3.53s | 8.6%) | San Benito Aquatics | 01/24/2025 | 2025 Brian Malick Memorial Z1S Championships | |
| 129 | Westley Berman | 41.14 | 10 | BB Min | A: 37.59 (+3.55s | 8.6%) | Palo Alto Stanford Aquatics | 12/20/2025 | 2025 PASA Winter Frolic Meet @ PALY HS | |
| 130 | Kai Chen | 41.15 | 10 | BB Min | A: 37.59 (+3.56s | 8.7%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 131 | Penghao Yu | 41.15 | 10 | BB Min | A: 37.59 (+3.56s | 8.7%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 132 | Yunus Mukhamadiev | 41.20 | 10 | BB Min | A: 37.59 (+3.61s | 8.8%) | Brentwood Seawolves | 03/28/2026 | Albany Armada Aquatics SC C B BB+ | |
| 133 | Sean Maisen | 41.29 | 10 | BB Min | A: 37.59 (+3.70s | 9.0%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 134 | Caleb Gray | 41.37 | 8 | BB Min | A: 37.59 (+3.78s | 9.1%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 135 | Joon Cha | 41.41 | 9 | BB Min | A: 37.59 (+3.82s | 9.2%) | Sunnyvale Swim Club | 12/12/2025 | Winter SC Age Group Championships | |
| 136 | Gavin Yang | 41.41 | 10 | BB Min | A: 37.59 (+3.82s | 9.2%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 137 | Zhouhan Yang | 41.45 | 10 | BB Min | A: 37.59 (+3.86s | 9.3%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 138 | Quintus Cheung | 41.45 | 8 | BB Min | A: 37.59 (+3.86s | 9.3%) | Milpitas Aquatic Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 139 | Ryden Ciammaichella | 41.46 | 9 | BB Min | A: 37.59 (+3.87s | 9.3%) | Piedmont Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 140 | William Power | 41.46 | 10 | BB Min | A: 37.59 (+3.87s | 9.3%) | Monterey Bay Swim Club | 07/18/2025 | CVAL | |
| 141 | Flynn Chen | 41.47 | 9 | BB Min | A: 37.59 (+3.88s | 9.4%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 142 | Lucas Yang | 41.49 | 10 | BB Min | A: 37.59 (+3.90s | 9.4%) | Bay Club Santa Clara Dolphins | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 143 | Kai Mihov | 41.57 | 10 | BB Min | A: 37.59 (+3.98s | 9.6%) | Palo Alto Stanford Aquatics | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 144 | Roman Tsikalov | 41.58 | 10 | BB Min | A: 37.59 (+3.99s | 9.6%) | Otter Swim Club | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 145 | Daniel Platon | 41.61 | 10 | BB Min | A: 37.59 (+4.02s | 9.7%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 146 | Cole King-thomas | 41.62 | 10 | BB Min | A: 37.59 (+4.03s | 9.7%) | Sonoma Sea Dragons | 11/23/2024 | Thankswimming Classic 2024 | |
| 147 | Holden Ling | 41.64 | 10 | BB Min | A: 37.59 (+4.05s | 9.7%) | The Olympic Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 148 | Jaden Manalastas | 41.66 | 9 | BB Min | A: 37.59 (+4.07s | 9.8%) | South San Francisco Aquatics | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | |
| 149 | Liam O'Brien | 41.67 | 9 | BB Min | A: 37.59 (+4.08s | 9.8%) | Walnut Creek Aquabears | 10/18/2025 | PC SRVA SCY B BB+ Meet | |
| 150 | Alexander Warren Moy | 41.67 | 9 | BB Min | A: 37.59 (+4.08s | 9.8%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
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.