Southern Zone Zone Boys 10 & under - 50 M 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Leo Madera | 38.83 | 10 | AAAA Min | Gulliver Swim Club | 05/01/2026 | Jesse Vasallo Swimming Invitational | ||
| 2 | Andres Sierra Rivera | 38.91 | 10 | AAAA Min | Pompano Beach Piranhas | 05/01/2026 | Jesse Vasallo Swimming Invitational | ||
| 3 | Isen Wolfe | 41.70 | 10 | AAA Min | AAAA: 41.49 (+0.21s | 0.5%) | Saint Petersburg Aquatics | 04/18/2025 | 2025 SPA Spring First Long Course Meet | |
| 4 | Logan Glick | 41.78 | 10 | AAA Min | AAAA: 41.49 (+0.29s | 0.7%) | Texas Ford Aquatics | 07/16/2025 | 2025 Texas Age Group Championships | |
| 5 | Wayne Sun | 42.38 | 10 | AAA Min | AAAA: 41.49 (+0.89s | 2.1%) | Katy Aquatic Team For Youth | 07/16/2025 | 2025 Texas Age Group Championships | |
| 6 | Johann Gomez Ugalde | 42.64 | 10 | AAA Min | AAAA: 41.49 (+1.15s | 2.7%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 7 | Joshua Gilbert | 42.69 | 10 | AAA Min | AAAA: 41.49 (+1.20s | 2.8%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 8 | Isaac Zhang | 42.79 | 9 | AAA Min | AAAA: 41.49 (+1.30s | 3.0%) | First Colony Swim Team, Inc. | 07/16/2025 | 2025 Texas Age Group Championships | |
| 9 | Alexander Lyavzin | 42.80 | 10 | AAA Min | AAAA: 41.49 (+1.31s | 3.1%) | SwimRight Team | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 10 | Simon Feldman | 42.88 | 9 | AAA Min | AAAA: 41.49 (+1.39s | 3.2%) | Fast Lane Aquatics | 05/15/2026 | 2026 PA Long Course Invite | |
| 11 | Austin Shillman | 43.60 | 10 | AA Min | AAA: 43.59 (+0.01s | 0.0%) | Pine Crest Swim Team | 04/18/2026 | SCS Under The Sun Invitational | |
| 12 | Zachary Brill | 43.77 | 10 | BB Min | A: 41.99 (+1.78s | 4.1%) | Aquatex Swim & Water Polo Team | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 13 | Sebastian Horn-Rios | 44.06 | 10 | AA Min | AAA: 43.59 (+0.47s | 1.1%) | T2 Aquatics | 04/17/2026 | 2026 GCST Spring Open | |
| 14 | Sebastian Michel | 44.13 | 10 | AA Min | AAA: 43.59 (+0.54s | 1.2%) | Katy Aquatic Team For Youth | 07/16/2025 | 2025 Texas Age Group Championships | |
| 15 | Benjamin Hankinson | 44.23 | 9 | AA Min | AAA: 43.59 (+0.64s | 1.4%) | Jupiter Dragons Swim Team | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 16 | Juan Marquez | 44.54 | 10 | AA Min | AAA: 43.59 (+0.95s | 2.1%) | Heritage Aquatic Team | 04/18/2026 | SCS Under The Sun Invitational | |
| 17 | Benjamin Balmaceda | 45.27 | 10 | AA Min | AAA: 43.59 (+1.68s | 3.7%) | Alamo Heights Aquatic Club ? A | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 18 | Tate Robinson | 45.44 | 10 | AA Min | AAA: 43.59 (+1.85s | 4.1%) | Eagle Swimming Association | 07/16/2025 | 2025 Texas Age Group Championships | |
| 19 | Jayden Liu | 45.52 | 10 | AA Min | AAA: 43.59 (+1.93s | 4.2%) | Katy Aquatic Team For Youth | 07/16/2025 | 2025 Texas Age Group Championships | |
| 20 | Maksim Chichetenko | 45.57 | 9 | AA Min | AAA: 43.59 (+1.98s | 4.3%) | Fast Lane Aquatics | 05/01/2026 | 2026 WFLA SPRING OPEN | |
| 21 | Hudson Kieschnick | 45.60 | 10 | AA Min | AAA: 43.59 (+2.01s | 4.4%) | Houston Hydra | 07/16/2025 | 2025 Texas Age Group Championships | |
| 22 | Troy Cary | 45.64 | 10 | AA Min | AAA: 43.59 (+2.05s | 4.5%) | Alamo Heights Aquatic Club ? A | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 23 | Levi Julson | 45.69 | 8 | AA Min | AAA: 43.59 (+2.10s | 4.6%) | Seminole Aquatics | 05/15/2026 | 2026 PA Long Course Invite | |
| 24 | Hines Butler | 45.84 | 10 | A Min | AA: 45.79 (+0.05s | 0.1%) | Sarasota Sharks | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 25 | Nathan Liu | 45.94 | 10 | A Min | AA: 45.79 (+0.15s | 0.3%) | First Colony Swim Team, Inc. | 07/16/2025 | 2025 Texas Age Group Championships | |
| 26 | Axel Arnoldsson | 45.97 | 10 | A Min | AA: 45.79 (+0.18s | 0.4%) | Fenix Swim Club | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 27 | Ari Thorne | 46.15 | 10 | A Min | AA: 45.79 (+0.36s | 0.8%) | Sarasota Sharks | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 28 | Kaden Sun | 46.16 | 9 | A Min | AA: 45.79 (+0.37s | 0.8%) | Lakeside Aquatic Club | 07/16/2025 | 2025 Texas Age Group Championships | |
| 29 | Timur Kochmar | 46.17 | 9 | A Min | AA: 45.79 (+0.38s | 0.8%) | SwimRight Team | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 30 | Aiden Sanchez | 46.22 | 7 | A Min | AA: 45.79 (+0.43s | 0.9%) | Saint Petersburg Aquatics | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 31 | Tang Zheng | 46.24 | 9 | A Min | AA: 45.79 (+0.45s | 1.0%) | Clearwater Aquatic Team | 05/15/2026 | 2026 Kent B Holdren Memorial Meet | |
| 32 | Nico Bausher | 46.48 | 10 | A Min | AA: 45.79 (+0.69s | 1.5%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 33 | Ivan Zhao | 46.51 | 8 | A Min | AA: 45.79 (+0.72s | 1.5%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 34 | Reed Larson | 46.66 | 10 | A Min | AA: 45.79 (+0.87s | 1.9%) | Blue Tide Aquatics | 07/16/2025 | 2025 Texas Age Group Championships | |
| 35 | Bennett Mckown | 46.70 | 8 | A Min | AA: 45.79 (+0.91s | 1.9%) | Volusia Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 36 | Nolan Meinen | 46.72 | 10 | A Min | AA: 45.79 (+0.93s | 2.0%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 37 | Zhengran Shao | 46.85 | 10 | A Min | AA: 45.79 (+1.06s | 2.3%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 38 | Oliver Catala | 46.92 | 10 | A Min | AA: 45.79 (+1.13s | 2.4%) | Gulliver Swim Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 39 | Nicholas Medina | 46.92 | 9 | A Min | AA: 45.79 (+1.13s | 2.4%) | Laker Swim | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 40 | Christopher Porembka | 46.93 | 10 | A Min | AA: 45.79 (+1.14s | 2.4%) | Fast Fins Elite | 07/16/2025 | 2025 Texas Age Group Championships | |
| 41 | Ryan Nesmith | 46.97 | 10 | A Min | AA: 45.79 (+1.18s | 2.5%) | Swim Florida | 04/17/2026 | 2026 GCST Spring Open | |
| 42 | Savelii Dorofieiev | 46.97 | 10 | A Min | AA: 45.79 (+1.18s | 2.5%) | Saint Petersburg Aquatics | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 43 | Kyu Bae | 47.00 | 9 | A Min | AA: 45.79 (+1.21s | 2.6%) | Waterloo Swimming | 04/18/2026 | 2026 ST ASC LC Kickoff | |
| 44 | Aiden Du | 47.06 | 9 | A Min | AA: 45.79 (+1.27s | 2.7%) | Unattached | 07/16/2025 | 2025 Texas Age Group Championships | |
| 45 | Vance Schildknecht | 47.07 | 9 | A Min | AA: 45.79 (+1.28s | 2.7%) | Gulliver Swim Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 46 | Nathan Campbell | 47.12 | 9 | A Min | AA: 45.79 (+1.33s | 2.8%) | Southwestern Aquatics Team - S | 07/16/2025 | 2025 Texas Age Group Championships | |
| 47 | Zachary Zeng | 47.19 | 10 | A Min | AA: 45.79 (+1.40s | 3.0%) | Waterloo Swimming | 05/08/2026 | 2026 ST ASC Cinco De Mayo | |
| 48 | Joseph James | 47.23 | 10 | A Min | AA: 45.79 (+1.44s | 3.0%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 49 | Matias Cardona | 47.28 | 10 | A Min | AA: 45.79 (+1.49s | 3.2%) | SwimFast | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 50 | Liam Bundick | 47.40 | 10 | A Min | AA: 45.79 (+1.61s | 3.4%) | Alamo Area Aquatic Association | 05/15/2026 | 2026 ST NIST Salute To The Troops | |
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.