Western Zone Zone Boys 10 & under - 50 Y Free
These rankings show the swimmers' placement within their Zone.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 751 | Bode McCollum | 34.14 | 10 | BB Min | A: 31.09 (+3.05s | 8.9%) | Aces Swim Club | 02/14/2026 | 2026 CO ACES Winter Open | |
| 752 | Otto Seeber | 34.14 | 9 | BB Min | A: 31.09 (+3.05s | 8.9%) | Flatiron Athletic Club | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 753 | Kenneth Zhang | 34.15 | 8 | BB Min | A: 31.09 (+3.06s | 9.0%) | Santa Clara Swim Club | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 754 | Silvio Leal | 34.15 | 10 | BB Min | A: 31.09 (+3.06s | 9.0%) | Maui Swim Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 755 | Joel Stees | 34.15 | 10 | BB Min | A: 31.09 (+3.06s | 9.0%) | Aquawolves Swimming | 02/14/2026 | 2026 CO AQUA February Home Meet | |
| 756 | Charles Kramer | 34.18 | 10 | BB Min | A: 31.09 (+3.09s | 9.0%) | Los Angeles Swim Club | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 757 | Thomas Cooke | 34.19 | 8 | BB Min | A: 31.09 (+3.10s | 9.1%) | Aptos Cabrillo Swim Club | 07/18/2025 | CVAL | |
| 758 | Joshua Lee | 34.19 | 10 | BB Min | A: 31.09 (+3.10s | 9.1%) | Vandal Aquatic Club | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 759 | Chenrui Cui | 34.19 | 8 | BB Min | A: 31.09 (+3.10s | 9.1%) | Unattached | 02/20/2026 | 2026 PN SRST Champs Qualifier Approved | |
| 760 | Reid Dixon | 34.20 | 10 | BB Min | A: 31.09 (+3.11s | 9.1%) | SlipStream Aquatics | 03/06/2026 | 2026 CO 14 U Silver State | |
| 761 | Michael Campbell | 34.20 | 9 | BB Min | A: 31.09 (+3.11s | 9.1%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | |
| 762 | Wonmin Kim | 34.24 | 10 | BB Min | A: 31.09 (+3.15s | 9.2%) | Dart Swimming | 11/08/2025 | Folsom Classic 2025 | |
| 763 | Luke Chaikriangkrai | 34.25 | 9 | BB Min | A: 31.09 (+3.16s | 9.2%) | Pro Swimming | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | |
| 764 | Alejandro Gonzalez | 34.25 | 9 | BB Min | A: 31.09 (+3.16s | 9.2%) | Los Angeles Swim Club | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 765 | Hugo Chian | 34.25 | 11 | BB Min | A: 31.09 (+3.16s | 9.2%) | The Olympic Club | 12/06/2025 | Neptune Swimming Swim Like The Dickens | |
| 766 | Porter Lander | 34.26 | 10 | BB Min | A: 31.09 (+3.17s | 9.3%) | Roseburg | 02/13/2026 | 2026 OR HS 6A 7 | |
| 767 | Jasper Chase | 34.28 | 10 | BB Min | A: 31.09 (+3.19s | 9.3%) | Coeur D\\\\\\'alene Area Swim Team | 11/21/2025 | 2025 Adam England Memorial Fall Splash | |
| 768 | Wynn Kitsadaviseksak | 34.28 | 10 | BB Min | A: 31.09 (+3.19s | 9.3%) | Hills Hurricane Swimming | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 769 | Joon Cha | 34.30 | 9 | BB Min | A: 31.09 (+3.21s | 9.4%) | Sunnyvale Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 770 | Ethan Zhu | 34.30 | 10 | BB Min | A: 31.09 (+3.21s | 9.4%) | DeAnza Cupertino Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | |
| 771 | Christopher Roeder | 34.30 | 9 | BB Min | A: 31.09 (+3.21s | 9.4%) | Aspen Swim Club | 06/07/2025 | 2025 CO Aspen Summer Meet | |
| 772 | Rufus Tang | 34.31 | 9 | BB Min | A: 31.09 (+3.22s | 9.4%) | Pacific Dragons Swim Team | 01/24/2026 | 2026 PN PDST Winter Invitational Meet Approv | |
| 773 | Landon Callaway | 34.31 | 10 | BB Min | A: 31.09 (+3.22s | 9.4%) | Aces Swim Club | 02/14/2026 | 2026 CO ACES Winter Open | |
| 774 | Thomas Halford | 34.31 | 10 | BB Min | A: 31.09 (+3.22s | 9.4%) | Pikes Peak Athletics | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 775 | Lucas Richardson | 34.31 | 10 | BB Min | A: 31.09 (+3.22s | 9.4%) | Hawaii Swimming Club | 03/07/2026 | 2026 HI Junior Age Group SCY Championship | |
| 776 | Hudson Porter | 34.32 | 9 | BB Min | A: 31.09 (+3.23s | 9.4%) | Wave Aquatics | 02/27/2026 | 2026 PN February AGI, Division 2 Approved | |
| 777 | Isak Breckon | 34.32 | 10 | BB Min | A: 31.09 (+3.23s | 9.4%) | South Davis Aquatics Team | 10/25/2025 | SDAT October 2025 Intrasquad Meet | |
| 778 | Aiden Huang | 34.32 | 9 | BB Min | A: 31.09 (+3.23s | 9.4%) | DeAnza Cupertino Aquatics | 10/25/2025 | 2025 SUNN Fall Classic | |
| 779 | Brandon Son | 34.33 | 8 | BB Min | A: 31.09 (+3.24s | 9.4%) | Columbia River Swim Team | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 780 | Jonathan Chen | 34.33 | 9 | BB Min | A: 31.09 (+3.24s | 9.4%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 781 | Lyman Ung | 34.33 | 10 | BB Min | A: 31.09 (+3.24s | 9.4%) | El Cerrito Gators | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 782 | Mitchell Sullivan | 34.33 | 10 | BB Min | A: 31.09 (+3.24s | 9.4%) | Dart Swimming | 07/26/2025 | 2025 REAL Championships | |
| 783 | Flynn Chen | 34.34 | 9 | BB Min | A: 31.09 (+3.25s | 9.5%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 784 | Benjamin Pho | 34.35 | 10 | BB Min | A: 31.09 (+3.26s | 9.5%) | Gold\\\\\\'s Aquatics Club | 03/07/2026 | 2026 PN C March Madness Approved | |
| 785 | Samuel Diemert | 34.36 | 9 | BB Min | A: 31.09 (+3.27s | 9.5%) | Mission Aurora Colorado Swimmi | 03/13/2026 | Mile High Championship Invitational | |
| 786 | Brady Lindauer | 34.37 | 10 | BB Min | A: 31.09 (+3.28s | 9.5%) | Unattached | 10/25/2025 | 2025 SUNN Fall Classic | |
| 787 | Luke Xu | 34.37 | 10 | BB Min | A: 31.09 (+3.28s | 9.5%) | Unattached | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 788 | Nicolas Pataky | 34.38 | 10 | BB Min | A: 31.09 (+3.29s | 9.6%) | Palo Alto Stanford Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | |
| 789 | Aaron Wang | 34.39 | 9 | BB Min | A: 31.09 (+3.30s | 9.6%) | Brea Aquatics | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 790 | Miles Wood | 34.40 | 8 | BB Min | A: 31.09 (+3.31s | 9.6%) | Dart Swimming | 11/09/2024 | Folsom Classic 2024 | |
| 791 | Kai Mihov | 34.40 | 10 | BB Min | A: 31.09 (+3.31s | 9.6%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 792 | Lok Zhang | 34.40 | 9 | BB Min | A: 31.09 (+3.31s | 9.6%) | Pacific Dragons Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 793 | Om Palan | 34.41 | 10 | BB Min | A: 31.09 (+3.32s | 9.6%) | California Dolphins Swim Team | 10/18/2025 | PC CDST SC C B BB+ | |
| 794 | Watson Xie | 34.41 | 9 | BB Min | A: 31.09 (+3.32s | 9.6%) | Chinook Aquatic Club | 02/27/2026 | 2026 PN February AGI, Division 2 Approved | |
| 795 | Connor Mahoney | 34.41 | 11 | BB Min | A: 31.09 (+3.32s | 9.6%) | Terrapins Swim Team | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 796 | Eddie Bi | 34.41 | 9 | BB Min | A: 31.09 (+3.32s | 9.6%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 797 | Isaac Marcuson | 34.41 | 10 | BB Min | A: 31.09 (+3.32s | 9.6%) | Aspire Aquatics of Colorado | 01/23/2026 | 2026 CO FAST Winter Open | |
| 798 | Wyatt Chandler | 34.42 | 9 | BB Min | A: 31.09 (+3.33s | 9.7%) | San Dimas Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 799 | Jayden Huang | 34.44 | 9 | BB Min | A: 31.09 (+3.35s | 9.7%) | Harbor Aquatics Club | 09/27/2025 | 2025 PN PPST Sprint And Relay Fest | |
| 800 | Sanders Ford | 34.44 | 8 | BB Min | A: 31.09 (+3.35s | 9.7%) | Las Cruces Aquatic Team | 02/13/2026 | 2026 BD Arctic BLAST Swim 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.