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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1001 | Leif Chang | 51.66 | 10 | B Min | BB: 47.69 (+3.97s | 7.7%) | Rancho San Dieguito | 04/11/2026 | SI 2026 RSD All Ages BC Meet | |
| 1002 | Alex Chen | 51.66 | 9 | B Min | BB: 47.69 (+3.97s | 7.7%) | Seattle Metropolitan Aquatic C | 11/16/2025 | 2025 PN PAC Q Meet | |
| 1003 | Chance Tan Nelson | 51.66 | 9 | B Min | BB: 47.69 (+3.97s | 7.7%) | Olympic Cascade Aquatics | 02/27/2026 | 2026 PN February AGI, Div 3 Approved | |
| 1004 | Elliott Poe Brown | 51.66 | 8 | B Min | BB: 47.69 (+3.97s | 7.7%) | Burlingame Aquatics | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 1005 | Chance Tan Nelson | 51.66 | 10 | B Min | BB: 47.69 (+3.97s | 7.7%) | West Coast Aquatics | 02/27/2026 | 2026 PN Feb Age Group Invite,Div 3 Approved | |
| 1006 | Piradon Pukrittayakamee | 51.68 | 9 | B Min | BB: 47.69 (+3.99s | 7.7%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 1007 | Lachlan Law | 51.68 | 9 | B Min | BB: 47.69 (+3.99s | 7.7%) | Univ. of Denver Hilltoppers | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 1008 | William MacDonald | 51.70 | 10 | B Min | BB: 47.69 (+4.01s | 7.8%) | Wave Aquatics | 01/24/2026 | 2026 PN WAVE Winter Invitational Approved | |
| 1009 | Kieran McLennan | 51.71 | 9 | B Min | BB: 47.69 (+4.02s | 7.8%) | Otter Swim Club | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 1010 | Calder Pettersen | 51.73 | 9 | B Min | BB: 47.69 (+4.04s | 7.8%) | Cascade Swim Club | 11/16/2025 | 2025 PN CSC Distance Plus Intrasquad | |
| 1011 | Dmitry Temkin | 51.74 | 9 | B Min | BB: 47.69 (+4.05s | 7.8%) | West Coast Aquatics | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 1012 | Hugo Pace | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Pacifica Sea Lions | 03/28/2026 | PSL March CBA+ | |
| 1013 | Maximus Agresti | 51.75 | 9 | B Min | BB: 47.69 (+4.06s | 7.8%) | Punahou Aquatics Institute | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 1014 | Michael Oneil | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Highlands Ranch Aquatics | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 1015 | Holt Jorgensen | 51.76 | 9 | B Min | BB: 47.69 (+4.07s | 7.9%) | Dart Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 1016 | Adam Mitzel | 51.76 | 9 | B Min | BB: 47.69 (+4.07s | 7.9%) | Redmond Aquatic Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1017 | Preston Bao | 51.76 | 10 | B Min | BB: 47.69 (+4.07s | 7.9%) | Rancho San Dieguito | 10/11/2025 | 2025 SI RSD All Ages B C Meet | |
| 1018 | Zihan Zhao | 51.77 | 9 | B Min | BB: 47.69 (+4.08s | 7.9%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 1019 | Kingston Walls | 51.78 | 9 | B Min | BB: 47.69 (+4.09s | 7.9%) | Terrapins Swim Team | 11/15/2024 | Pacific Swimming SCY B BB+ Last Chance Meet | |
| 1020 | William Lawrence | 51.78 | 8 | B Min | BB: 47.69 (+4.09s | 7.9%) | Pro Swimming | 01/23/2026 | 2026 PN Pro January Intrasquad Approved | |
| 1021 | August Pittman | 51.79 | 9 | B Min | BB: 47.69 (+4.10s | 7.9%) | Issaquah Swim Team | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 1022 | Lucas Fleck | 51.79 | 10 | B Min | BB: 47.69 (+4.10s | 7.9%) | AC Swim Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 1023 | Vaughn Jamison | 51.79 | 10 | B Min | BB: 47.69 (+4.10s | 7.9%) | Aspire Aquatics of Colorado | 03/06/2026 | 2026 CO 14 U Silver State | |
| 1024 | Lucas Wu | 51.83 | 10 | B Min | BB: 47.69 (+4.14s | 8.0%) | Coronado Swim -team Elite | 04/11/2026 | SI 2026 RSD All Ages BC Meet | |
| 1025 | Luca Moyes | 51.83 | 9 | B Min | BB: 47.69 (+4.14s | 8.0%) | Lake Oswego Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1026 | Alexander Stepania | 51.85 | 9 | B Min | BB: 47.69 (+4.16s | 8.0%) | Bellevue Club Swim Team | 11/07/2025 | 2025 THSC November Open | |
| 1027 | Cooper Ly | 51.85 | 9 | B Min | BB: 47.69 (+4.16s | 8.0%) | Excel Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 1028 | Yusuf Cavcic | 51.85 | 10 | B Min | BB: 47.69 (+4.16s | 8.0%) | Wave Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 1029 | Storm Houborg | 51.86 | 9 | B Min | BB: 47.69 (+4.17s | 8.0%) | San Ramon Valley Aquatics | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 1030 | Timothy Wang | 51.88 | 10 | B Min | BB: 47.69 (+4.19s | 8.1%) | Cascadia Swimming | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 1031 | Vedant Tomar | 51.90 | 9 | B Min | BB: 47.69 (+4.21s | 8.1%) | California Dolphins Swim Team | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 1032 | Bodie Hendrickson | 51.91 | 10 | B Min | BB: 47.69 (+4.22s | 8.1%) | Hilltop Aquatic Swim Team | 09/17/2025 | 2025 UT HAST Sprint Meet | |
| 1033 | Luke Atanasov | 51.92 | 8 | B Min | BB: 47.69 (+4.23s | 8.1%) | Tualatin Hills Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1034 | Wesley Ho | 51.93 | 10 | B Min | BB: 47.69 (+4.24s | 8.2%) | Aspire Aquatics of Colorado | 01/10/2025 | 2025 CO PPA January Meet | |
| 1035 | Anders Cai | 51.95 | 10 | B Min | BB: 47.69 (+4.26s | 8.2%) | Mission Valley YMCA | 06/14/2026 | 2026 SI SEA 14u Rising Stars 2 Jun 14 | |
| 1036 | Marko Tamburi | 51.96 | 10 | B Min | BB: 47.69 (+4.27s | 8.2%) | Star Aquatics | 12/12/2025 | Triad Tropic Invitational Copied | |
| 1037 | Wesley Albright | 51.96 | 9 | B Min | BB: 47.69 (+4.27s | 8.2%) | Reno Aquatic Club | 03/15/2025 | 2025 NNA Age Group Open | |
| 1038 | Charles Rao | 51.97 | 9 | B Min | BB: 47.69 (+4.28s | 8.2%) | Eastside Aquatic Swim Team | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 1039 | Hyrum Oswald | 51.99 | 9 | B Min | BB: 47.69 (+4.30s | 8.3%) | Unattached | 07/02/2025 | 2025 14 Under Intrasquad | |
| 1040 | Aiden Xu | 52.00 | 9 | B Min | BB: 47.69 (+4.31s | 8.3%) | Northern Nevada Aquatics | 03/14/2026 | 2026 NNA AGO | |
| 1041 | Marcus Wang | 52.00 | 10 | B Min | BB: 47.69 (+4.31s | 8.3%) | Pacific Dragons Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 1042 | Ryan Feng | 52.02 | 9 | B Min | BB: 47.69 (+4.33s | 8.3%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 1043 | Oliver Keatts | 52.02 | 10 | B Min | BB: 47.69 (+4.33s | 8.3%) | Univ. of Denver Hilltoppers | 03/06/2026 | 2026 CO 14 U Silver State | |
| 1044 | Joshua Hamilton | 52.03 | 10 | B Min | BB: 47.69 (+4.34s | 8.3%) | Swim Kauai Aquatics | 04/11/2026 | SKA Home Meet 41126 | |
| 1045 | Logan Rowalt | 52.03 | 9 | B Min | BB: 47.69 (+4.34s | 8.3%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 1046 | William Chu | 52.03 | 9 | B Min | BB: 47.69 (+4.34s | 8.3%) | Pacific Dragons Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 1047 | Ezekiel Tally | 52.03 | 10 | B Min | BB: 47.69 (+4.34s | 8.3%) | Thunderbird Aquatic Club | 05/15/2026 | 2026 PN TAC Spring Thunderbird Approved | |
| 1048 | Albert Jing | 52.04 | 8 | B Min | BB: 47.69 (+4.35s | 8.4%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 1049 | Nathanael Richards | 52.04 | 9 | B Min | BB: 47.69 (+4.35s | 8.4%) | Spokane Waves Aquatic Team | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 1050 | Jayden Yates | 52.04 | 10 | B Min | BB: 47.69 (+4.35s | 8.4%) | Kearns Youth Aquatic Team | 02/10/2024 | 2024 Freezing Fast Last Chance | |
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.