Western Zone Zone Boys 10 & under - 50 Y Breast
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 | Jason Ma | 50.08 | 10 | B Min | BB: 47.69 (+2.39s | 4.8%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 752 | Luke Echaluse | 50.08 | 10 | B Min | BB: 47.69 (+2.39s | 4.8%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 753 | Colin Chuang | 50.09 | 10 | B Min | BB: 47.69 (+2.40s | 4.8%) | Palo Alto Stanford Aquatics | 12/20/2025 | 2025 PASA Winter Frolic Meet @ PALY HS | |
| 754 | Keith Guo | 50.10 | 9 | B Min | BB: 47.69 (+2.41s | 4.8%) | Pacific Dragons Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 755 | Aadyant Agrawal | 50.10 | 9 | B Min | BB: 47.69 (+2.41s | 4.8%) | Wave Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 756 | Nathan Ma | 50.10 | 9 | B Min | BB: 47.69 (+2.41s | 4.8%) | Dart Swimming | 07/25/2026 | 2026 REAL Championships | |
| 757 | Dashiell Wang | 50.12 | 10 | B Min | BB: 47.69 (+2.43s | 4.8%) | Santa Clara Swim Club | 07/25/2026 | 2026 DACA SC CBA Meet | |
| 758 | Kotia Zvereff | 50.14 | 8 | B Min | BB: 47.69 (+2.45s | 4.9%) | Unattached | 11/15/2025 | NVST Swimming Into Fall 2025 | |
| 759 | Aaron Im | 50.14 | 9 | B Min | BB: 47.69 (+2.45s | 4.9%) | West Coast Aquatics | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 760 | Bennett Calliham | 50.14 | 9 | B Min | BB: 47.69 (+2.45s | 4.9%) | Loveland Swim Club | 02/13/2026 | 2026 CO Loveland Last Chance Sweetheart Meet | |
| 761 | Alexander Ivanov | 50.15 | 10 | B Min | BB: 47.69 (+2.46s | 4.9%) | Seattle Metropolitan Aquatic C | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 762 | William Oubre | 50.16 | 10 | B Min | BB: 47.69 (+2.47s | 4.9%) | Salida Cyclones | 06/19/2026 | 2026 Max Shirley Radiff Memorial | |
| 763 | Milo Chan | 50.16 | 9 | B Min | BB: 47.69 (+2.47s | 4.9%) | Seattle Metropolitan Aquatic C | 04/25/2026 | 2026 PN SSCD Spring Open Approved | |
| 764 | Kayvan Tabarrok | 50.18 | 9 | B Min | BB: 47.69 (+2.49s | 5.0%) | Piedmont Swim Team | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 765 | Lucas LeJanairo | 50.18 | 8 | B Min | BB: 47.69 (+2.49s | 5.0%) | DeAnza Cupertino Aquatics | 07/25/2026 | 2026 DACA SC CBA Meet | |
| 766 | Gavin Merrill | 50.19 | 9 | B Min | BB: 47.69 (+2.50s | 5.0%) | Olympus Aquatics | 12/18/2025 | 2025 OA IMR II Copied | |
| 767 | Joshua Niswonger | 50.20 | 10 | B Min | BB: 47.69 (+2.51s | 5.0%) | Palo Alto Stanford Aquatics | 12/20/2025 | 2025 PASA Winter Frolic Meet @ PALY HS | |
| 768 | Andre Vlaev | 50.21 | 8 | B Min | BB: 47.69 (+2.52s | 5.0%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 769 | Damon Shao | 50.21 | 9 | B Min | BB: 47.69 (+2.52s | 5.0%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 770 | Jacob Ahnen | 50.21 | 9 | B Min | BB: 47.69 (+2.52s | 5.0%) | Denver Swim Academy | 03/06/2026 | 2026 CO 14 U Silver State | |
| 771 | Aiden Zhang | 50.22 | 8 | B Min | BB: 47.69 (+2.53s | 5.0%) | Olympic Cascade Aquatics | 01/18/2026 | 2026 PN BC Snowflake Classic Invite Approved | |
| 772 | Miles Wood | 50.23 | 9 | B Min | BB: 47.69 (+2.54s | 5.1%) | Dart Swimming | 02/07/2025 | 2025 PSL Super Finals Invitational | |
| 773 | Julian Brown | 50.23 | 10 | B Min | BB: 47.69 (+2.54s | 5.1%) | Razor Aquatics | 12/12/2025 | OLY Swimming Holiday Bowl | |
| 774 | Alden Harris | 50.23 | 10 | B Min | BB: 47.69 (+2.54s | 5.1%) | SlipStream Aquatics | 01/23/2026 | 2026 CO FAST Winter Open | |
| 775 | Santiago Westbury | 50.24 | 10 | B Min | BB: 47.69 (+2.55s | 5.1%) | Piedmont Swim Team | 05/29/2026 | Piedmont Swim Team Club Championships | |
| 776 | Bode Boone | 50.25 | 9 | B Min | BB: 47.69 (+2.56s | 5.1%) | Wave Aquatics | 08/01/2026 | 2026 PN WAVE Summer Pentathlon Invite Appr | |
| 777 | Julian Polito | 50.26 | 10 | B Min | BB: 47.69 (+2.57s | 5.1%) | Corvallis Aquatic Team | 08/07/2026 | 2026 OR NST Seahorse Invitational | |
| 778 | Xavier Hu | 50.27 | 8 | B Min | BB: 47.69 (+2.58s | 5.1%) | Brea Aquatics | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 779 | Eastok Ilic | 50.28 | 10 | B Min | BB: 47.69 (+2.59s | 5.2%) | Bulldog Swim Club | 03/28/2026 | LAMV C B A+ Meet | |
| 780 | Kolten Graver | 50.28 | 10 | B Min | BB: 47.69 (+2.59s | 5.2%) | Life Time Colorado Swim Club | 04/25/2026 | 2026 CO COSA Spring SC Kick Off | |
| 781 | William Foster | 50.31 | 10 | B Min | BB: 47.69 (+2.62s | 5.2%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 782 | Caleb Nguyen | 50.32 | 9 | B Min | BB: 47.69 (+2.63s | 5.2%) | Form Swim Team | 03/06/2026 | 2026 CO 14 U Silver State | |
| 783 | Matthew Merz | 50.35 | 9 | B Min | BB: 47.69 (+2.66s | 5.3%) | Los Gatos Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 784 | Ryan Hu | 50.36 | 8 | B Min | BB: 47.69 (+2.67s | 5.3%) | Wave Aquatics | 10/18/2025 | 2025 PN VAST Fall Classic | |
| 785 | Liam O'Brien | 50.37 | 9 | B Min | BB: 47.69 (+2.68s | 5.3%) | Walnut Creek Aquabears | 11/15/2024 | Pacific Swimming SCY B BB+ Last Chance Meet | |
| 786 | Mo Chen | 50.38 | 10 | B Min | BB: 47.69 (+2.69s | 5.3%) | Wave Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 787 | Henry Huang | 50.39 | 9 | B Min | BB: 47.69 (+2.70s | 5.4%) | Daly City Dolphins | 02/07/2026 | 2026 PSL Super Finals Invitational | |
| 788 | Alexander Malcomson | 50.40 | 8 | B Min | BB: 47.69 (+2.71s | 5.4%) | Bellevue Club Swim Team | 01/18/2026 | 2026 PN BC Snowflake Classic Invite Approved | |
| 789 | Noah Godfrey | 50.40 | 10 | B Min | BB: 47.69 (+2.71s | 5.4%) | Life Time Oregon Swim Team | 02/07/2026 | 2026 OR HEAT BC Blastoff | |
| 790 | Ryan Hamby | 50.40 | 9 | B Min | BB: 47.69 (+2.71s | 5.4%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 791 | Bennett Burtz | 50.40 | 9 | B Min | BB: 47.69 (+2.71s | 5.4%) | CAC Stingrays Swim Team | 02/01/2026 | 2026 CO FORM February Freeze | |
| 792 | Zander Flores | 50.43 | 8 | B Min | BB: 47.69 (+2.74s | 5.4%) | Alameda Gators | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 793 | Dominic Welch | 50.44 | 10 | B Min | BB: 47.69 (+2.75s | 5.5%) | Rogue Rapids | 11/21/2025 | 2025 Rogue Rapids Sofia Marks Invitational | |
| 794 | Jordan Chan | 50.44 | 9 | B Min | BB: 47.69 (+2.75s | 5.5%) | Daly City Dolphins | 12/14/2024 | 2024 DCD Winter Holiday Spalsh | |
| 795 | Sebastian Lam | 50.45 | 9 | B Min | BB: 47.69 (+2.76s | 5.5%) | Bellevue Club Swim Team | 03/06/2026 | 2026 BBST Seize The Day Invitational | |
| 796 | Shaan Chenam | 50.46 | 9 | B Min | BB: 47.69 (+2.77s | 5.5%) | Aquazot Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 797 | Tiago Origel | 50.46 | 9 | B Min | BB: 47.69 (+2.77s | 5.5%) | Swim Neptune | 12/04/2025 | 2025 Holiday Swim Festival | |
| 798 | Aiden Hu | 50.47 | 10 | B Min | BB: 47.69 (+2.78s | 5.5%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 799 | Aryash Suri | 50.47 | 8 | B Min | BB: 47.69 (+2.78s | 5.5%) | Seattle Metropolitan Aquatic C | 06/14/2026 | 2026 SMAC June Mini Meet Approved | |
| 800 | Andrew Xu | 50.48 | 8 | B Min | BB: 47.69 (+2.79s | 5.5%) | Wasatch Front Fish Market | 12/10/2025 | WFFM December Developmental | |
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.