USA Boys 10 & under - 50 M Breast
These rankings show the swimmers' placement within the United States.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 101 | Zhengran Shao | 46.85 | 10 | A Min | AA: 45.79 (+1.06s | 2.3%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 102 | Jaden Shin | 46.85 | 10 | A Min | AA: 45.79 (+1.06s | 2.3%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 103 | Haoran Cong | 46.87 | 10 | A Min | AA: 45.79 (+1.08s | 2.3%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 104 | Ryan Chen | 46.91 | 10 | A Min | AA: 45.79 (+1.12s | 2.4%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 105 | 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 | |
| 106 | Nicholas Medina | 46.92 | 9 | A Min | AA: 45.79 (+1.13s | 2.4%) | Laker Swim | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 107 | 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 | |
| 108 | Emmett Curry | 46.97 | 10 | A Min | AA: 45.79 (+1.18s | 2.5%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 109 | Ryan Nesmith | 46.97 | 10 | A Min | AA: 45.79 (+1.18s | 2.5%) | Swim Florida | 04/17/2026 | 2026 GCST Spring Open | |
| 110 | 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 | |
| 111 | Kyu Bae | 47.00 | 9 | A Min | AA: 45.79 (+1.21s | 2.6%) | Waterloo Swimming | 04/18/2026 | 2026 ST ASC LC Kickoff | |
| 112 | Max Ong | 47.06 | 10 | A Min | AA: 45.79 (+1.27s | 2.7%) | Pacific Swim | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 113 | Aiden Du | 47.06 | 9 | A Min | AA: 45.79 (+1.27s | 2.7%) | Unattached | 07/16/2025 | 2025 Texas Age Group Championships | |
| 114 | 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 | |
| 115 | Nicholas Liu | 47.08 | 9 | A Min | AA: 45.79 (+1.29s | 2.7%) | Alto Swim Club | 06/27/2025 | Alto Summer Swelter | |
| 116 | Lok Zhang | 47.09 | 10 | A Min | AA: 45.79 (+1.30s | 2.8%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 117 | Jonathan Nelson | 47.12 | 10 | A Min | AA: 45.79 (+1.33s | 2.8%) | Utah Valley Aquatics | 06/18/2025 | 2025 UT CHAT INVITATIONAL | |
| 118 | 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 | |
| 119 | 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 | |
| 120 | Abraham Cheng | 47.23 | 10 | A Min | AA: 45.79 (+1.44s | 3.0%) | Aquazot Swim Club | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 121 | 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 | |
| 122 | Anthony Ma | 47.28 | 10 | A Min | AA: 45.79 (+1.49s | 3.2%) | Cottonwood Heights Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 123 | Matias Cardona | 47.28 | 10 | A Min | AA: 45.79 (+1.49s | 3.2%) | SwimFast | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 124 | Thomas Sayer | 47.38 | 10 | A Min | AA: 45.79 (+1.59s | 3.4%) | Foxjets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 125 | 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 | |
| 126 | Dylan Deahn | 47.43 | 9 | A Min | AA: 45.79 (+1.64s | 3.5%) | Unattached | 07/31/2025 | 2025 Central Zone 14 Under Championship Mee | |
| 127 | Jason Ye | 47.43 | 10 | A Min | AA: 45.79 (+1.64s | 3.5%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 128 | Mason Ryu | 47.43 | 10 | A Min | AA: 45.79 (+1.64s | 3.5%) | Klg Sports Swim Team | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 129 | Hamilton Rule | 47.44 | 10 | A Min | AA: 45.79 (+1.65s | 3.5%) | Unattached | 08/06/2025 | 2025 Summer Elite Showcase | |
| 130 | Leonardo Henn | 47.45 | 10 | A Min | AA: 45.79 (+1.66s | 3.5%) | Eagles Swim Club | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 131 | Braylon Ward | 47.46 | 10 | A Min | AA: 45.79 (+1.67s | 3.5%) | Aquatex Swim & Water Polo Team | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 132 | Max Madera | 47.47 | 10 | A Min | AA: 45.79 (+1.68s | 3.5%) | Fast Falcons | 05/15/2026 | 2026 FAST May Invite | |
| 133 | Luca Tricano | 47.52 | 10 | A Min | AA: 45.79 (+1.73s | 3.6%) | Golden West Swim Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 134 | Owen Newton | 47.54 | 10 | A Min | AA: 45.79 (+1.75s | 3.7%) | SwimNation Aquatics Programs | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 135 | Aleksandr Rybin | 47.55 | 10 | A Min | AA: 45.79 (+1.76s | 3.7%) | King Aquatic Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 136 | Koku Saddawi-Banno | 47.57 | 9 | A Min | AA: 45.79 (+1.78s | 3.7%) | Jbarracudas Swim Team | 07/11/2025 | 2025 SI JBST All Ages NTS Meet | |
| 137 | Robert Richards | 47.59 | 10 | A Min | AA: 45.79 (+1.80s | 3.8%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 138 | Flynn Chen | 47.62 | 10 | A Min | AA: 45.79 (+1.83s | 3.8%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 139 | Conrad Chiu | 47.66 | 10 | A Min | AA: 45.79 (+1.87s | 3.9%) | Corvallis Aquatic Team | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 140 | Liam Kwak | 47.66 | 10 | A Min | AA: 45.79 (+1.87s | 3.9%) | Life Time Colorado Swim Club | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 141 | Yanbo Li | 47.71 | 9 | A Min | AA: 45.79 (+1.92s | 4.0%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 142 | Clayton Chester | 47.76 | 10 | A Min | AA: 45.79 (+1.97s | 4.1%) | Heartland Swim Assoc | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 143 | Owen Schulte | 47.76 | 10 | A Min | AA: 45.79 (+1.97s | 4.1%) | South Shore Sails | 07/16/2025 | 2025 Texas Age Group Championships | |
| 144 | Morgan Dasilva | 47.80 | 10 | A Min | AA: 45.79 (+2.01s | 4.2%) | Asphalt Green Unified Aquatics | 08/06/2025 | 2025 Summer Elite Showcase | |
| 145 | Angel Cordero | 47.81 | 10 | A Min | AA: 45.79 (+2.02s | 4.2%) | Equipo Natacion Encantada | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 146 | Kamden Love | 47.82 | 10 | A Min | AA: 45.79 (+2.03s | 4.2%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 147 | Allister Georgiou | 47.83 | 10 | A Min | AA: 45.79 (+2.04s | 4.3%) | McGrath Marlins Swim Team | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 148 | Peter Hofman | 47.86 | 10 | A Min | AA: 45.79 (+2.07s | 4.3%) | Cascade Swim Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 149 | Alexander Mekjian | 47.87 | 10 | A Min | AA: 45.79 (+2.08s | 4.3%) | North Coast Aquatics | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 150 | Enzo Harter | 47.89 | 10 | A Min | AA: 45.79 (+2.10s | 4.4%) | Beaverton Area Aquatics Club | 05/01/2026 | 2026 THSC Spring Invite | |
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.