Southern Zone Zone Boys 10 & under - 50 M Back
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 | Tate Robinson | 36.52 | 10 | AAAA Min | Eagle Swimming Association | 07/16/2025 | 2025 Texas Age Group Championships | ||
| 2 | Andres Sierra Rivera | 37.10 | 10 | AAA Min | AAAA: 36.99 (+0.11s | 0.3%) | Pompano Beach Piranhas | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 3 | Isen Wolfe | 37.20 | 10 | AAA Min | AAAA: 36.99 (+0.21s | 0.6%) | Saint Petersburg Aquatics | 06/19/2025 | 2025 Shark Open | |
| 4 | Cameron Ehrlich | 37.36 | 10 | AAA Min | AAAA: 36.99 (+0.37s | 1.0%) | Pompano Beach Piranhas | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 5 | Michael Laurence | 37.62 | 9 | AAA Min | AAAA: 36.99 (+0.63s | 1.7%) | Gulliver Swim Club | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 6 | Nico Bausher | 37.85 | 10 | AAA Min | AAAA: 36.99 (+0.86s | 2.3%) | Southwest Stars Swim Club | 04/11/2026 | 2026 Ron Nardozzi Pre Derby Sprint Invite C | |
| 7 | Micah Vargas | 38.07 | 10 | AAA Min | AAAA: 36.99 (+1.08s | 2.8%) | Dallas Mustangs | 07/16/2025 | 2025 Texas Age Group Championships | |
| 8 | Jayden Liu | 38.10 | 10 | AAA Min | AAAA: 36.99 (+1.11s | 2.9%) | Katy Aquatic Team For Youth | 07/16/2025 | 2025 Texas Age Group Championships | |
| 9 | Carson Swift | 38.10 | 10 | AAA Min | AAAA: 36.99 (+1.11s | 2.9%) | Nitro Swimming | 05/09/2026 | 2026 ST NTRO LC School S Out | |
| 10 | Sebastian Horn-Rios | 38.31 | 10 | AAA Min | AAAA: 36.99 (+1.32s | 3.4%) | T2 Aquatics | 04/17/2026 | 2026 GCST Spring Open | |
| 11 | Miguel Ramirez | 38.31 | 9 | AAA Min | AAAA: 36.99 (+1.32s | 3.4%) | Blue Wave Swimming | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 12 | Adam Aburas | 38.37 | 10 | AAA Min | AAAA: 36.99 (+1.38s | 3.6%) | First Colony Swim Team, Inc. | 07/16/2025 | 2025 Texas Age Group Championships | |
| 13 | Joshua Gilbert | 38.47 | 10 | AAA Min | AAAA: 36.99 (+1.48s | 3.8%) | Bolles School Sharks | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 14 | Leo Madera | 38.56 | 10 | AAA Min | AAAA: 36.99 (+1.57s | 4.1%) | Gulliver Swim Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 15 | Zachary Zeng | 38.64 | 10 | AAA Min | AAAA: 36.99 (+1.65s | 4.3%) | Waterloo Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 16 | Luke Gamino | 38.74 | 9 | AAA Min | AAAA: 36.99 (+1.75s | 4.5%) | Treasure Coast Aquatics | 05/23/2025 | 2025 Dr Aspi Doctor Memorial Invitational | |
| 17 | Henson Terrill | 38.86 | 10 | AAA Min | AAAA: 36.99 (+1.87s | 4.8%) | Hydro Elite Aquatic Team | 07/16/2025 | 2025 Texas Age Group Championships | |
| 18 | Heath Cobb | 38.93 | 9 | AAA Min | AAAA: 36.99 (+1.94s | 5.0%) | Metroplex Aquatics | 07/16/2025 | 2025 Texas Age Group Championships | |
| 19 | Lucius Leven | 38.96 | 10 | AAA Min | AAAA: 36.99 (+1.97s | 5.1%) | Alamo Area Aquatic Association | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 20 | Benjamin Balmaceda | 38.98 | 10 | AAA Min | AAAA: 36.99 (+1.99s | 5.1%) | Alamo Heights Aquatic Club ? A | 05/15/2026 | 2026 ST NIST Salute To The Troops | |
| 21 | Jaden Moy | 38.99 | 10 | AAA Min | AAAA: 36.99 (+2.00s | 5.1%) | Fast Falcons | 12/05/2025 | 2025 Speedo Gator Holiday Classic | |
| 22 | Logan Glick | 39.04 | 10 | AA Min | AAA: 38.99 (+0.05s | 0.1%) | Texas Ford Aquatics | 07/16/2025 | 2025 Texas Age Group Championships | |
| 23 | Finn McGuire | 39.41 | 10 | AA Min | AAA: 38.99 (+0.42s | 1.1%) | Swim Florida | 04/17/2026 | 2026 GCST Spring Open | |
| 24 | Mason Lankford | 39.57 | 10 | AA Min | AAA: 38.99 (+0.58s | 1.5%) | Hydro Swim Club | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 25 | Wayne Sun | 39.59 | 10 | AA Min | AAA: 38.99 (+0.60s | 1.5%) | Katy Aquatic Team For Youth | 07/16/2025 | 2025 Texas Age Group Championships | |
| 26 | Timur Kolchin | 39.80 | 10 | AA Min | AAA: 38.99 (+0.81s | 2.0%) | Fast Lane Aquatics | 05/01/2026 | 2026 WFLA SPRING OPEN | |
| 27 | Joseph Tomicic | 39.84 | 10 | AA Min | AAA: 38.99 (+0.85s | 2.1%) | Katy Aquatic Team For Youth | 07/16/2025 | 2025 Texas Age Group Championships | |
| 28 | Johann Gomez Ugalde | 40.02 | 10 | AA Min | AAA: 38.99 (+1.03s | 2.6%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 29 | Noah Thomas | 40.24 | 9 | AA Min | AAA: 38.99 (+1.25s | 3.1%) | Longhorn Aquatics | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 30 | Simon Feldman | 40.27 | 9 | AA Min | AAA: 38.99 (+1.28s | 3.2%) | Fast Lane Aquatics | 05/15/2026 | 2026 PA Long Course Invite | |
| 31 | Andrei Emelianov | 40.33 | 9 | AA Min | AAA: 38.99 (+1.34s | 3.3%) | Nitro Swimming | 05/09/2026 | 2026 ST NTRO LC School S Out | |
| 32 | Greyson Huddleston | 40.36 | 9 | AA Min | AAA: 38.99 (+1.37s | 3.4%) | Patriot Aquatics | 05/15/2026 | 2026 PA Long Course Invite | |
| 33 | Andres Gomez | 40.43 | 10 | AA Min | AAA: 38.99 (+1.44s | 3.6%) | South Florida Aquatic Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 34 | Gleb Nikishin | 40.48 | 10 | AA Min | AAA: 38.99 (+1.49s | 3.7%) | SwimRight Team | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 35 | Lucas Ni | 40.50 | 9 | AA Min | AAA: 38.99 (+1.51s | 3.7%) | Makos Aquatics Club of Gainesv | 05/15/2026 | 2026 FAST May Invite | |
| 36 | Olin Beerens | 40.58 | 10 | AA Min | AAA: 38.99 (+1.59s | 3.9%) | Longhorn Aquatics | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 37 | Graham Greenblatt | 40.59 | 10 | AA Min | AAA: 38.99 (+1.60s | 3.9%) | Swim Streamline at Northampton | 07/16/2025 | 2025 Texas Age Group Championships | |
| 38 | Leonardo Maia | 40.73 | 10 | AA Min | AAA: 38.99 (+1.74s | 4.3%) | Swim Coral Springs | 04/18/2026 | SCS Under The Sun Invitational | |
| 39 | Zhengran Shao | 40.92 | 10 | AA Min | AAA: 38.99 (+1.93s | 4.7%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 40 | Nicholas Galvin | 41.12 | 10 | A Min | AA: 41.09 (+0.03s | 0.1%) | Sarasota Sharks | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 41 | Troy Cary | 41.14 | 10 | A Min | AA: 41.09 (+0.05s | 0.1%) | Alamo Heights Aquatic Club ? A | 05/15/2026 | 2026 ST NIST Salute To The Troops | |
| 42 | Nathan Campbell | 41.31 | 9 | A Min | AA: 41.09 (+0.22s | 0.5%) | Southwestern Aquatics Team - S | 07/16/2025 | 2025 Texas Age Group Championships | |
| 43 | Blake Hathorn | 41.34 | 10 | A Min | AA: 41.09 (+0.25s | 0.6%) | Com Aquatics | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 44 | Ari Thorne | 41.38 | 10 | A Min | AA: 41.09 (+0.29s | 0.7%) | Sarasota Sharks | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 45 | Aedan Allen | 41.56 | 10 | A Min | AA: 41.09 (+0.47s | 1.1%) | Unattached | 05/01/2026 | 2026 ST HCA Long Course Invitational | |
| 46 | Colt Sivells | 41.73 | 10 | A Min | AA: 41.09 (+0.64s | 1.5%) | Southwest Stars Swim Club | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 47 | Evan Wik | 41.75 | 9 | A Min | AA: 41.09 (+0.66s | 1.6%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 48 | Calvin Higgs | 41.95 | 10 | A Min | AA: 41.09 (+0.86s | 2.1%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 49 | Preston Cain | 42.00 | 10 | A Min | AA: 41.09 (+0.91s | 2.2%) | Streamline Aquatics | 04/17/2026 | 1st Annual SAW Vs Streamline Fiesta Showdown | |
| 50 | Archer Sewell | 42.04 | 10 | A Min | AA: 41.09 (+0.95s | 2.3%) | Longhorn Aquatics | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
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.