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 | Lynden Feaste | 46.78 | 9 | A Min | AA: 45.79 (+0.99s | 2.1%) | Can Mississauga Aquatic Club | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 102 | Christopher Porembka | 46.93 | 9 | A Min | AA: 45.79 (+1.14s | 2.4%) | Fast Fins Elite | 07/16/2025 | 2025 Texas Age Group Championships | |
| 103 | Harry Zhou | 46.98 | 10 | A Min | AA: 45.79 (+1.19s | 2.5%) | Aquajets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 104 | Aiden Du | 47.06 | 9 | A Min | AA: 45.79 (+1.27s | 2.7%) | Unattached | 07/16/2025 | 2025 Texas Age Group Championships | |
| 105 | Andrew Lin | 47.07 | 10 | A Min | AA: 45.79 (+1.28s | 2.7%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 106 | Nicholas Liu | 47.08 | 9 | A Min | AA: 45.79 (+1.29s | 2.7%) | Alto Swim Club | 06/27/2025 | Alto Summer Swelter | |
| 107 | Parker Warren | 47.10 | 10 | A Min | AA: 45.79 (+1.31s | 2.8%) | Southwest Stars Swim Club | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 108 | Jayden Liu | 47.10 | 9 | A Min | AA: 45.79 (+1.31s | 2.8%) | Pacific Dragons Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 109 | Nathan Campbell | 47.12 | 8 | A Min | AA: 45.79 (+1.33s | 2.8%) | Southwestern Aquatics Team - S | 07/16/2025 | 2025 Texas Age Group Championships | |
| 110 | Jonathan Nelson | 47.12 | 9 | A Min | AA: 45.79 (+1.33s | 2.8%) | Utah Valley Aquatics | 06/18/2025 | 2025 UT CHAT INVITATIONAL | |
| 111 | Ari Thorne | 47.16 | 9 | A Min | AA: 45.79 (+1.37s | 2.9%) | Sarasota Sharks | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 112 | Kota Whitman | 47.18 | 10 | A Min | AA: 45.79 (+1.39s | 2.9%) | North Bay Aquatics | 06/21/2025 | NVST Last Chance AG Champs Summer Plunge 2025 | |
| 113 | Joseph Ragsdale | 47.21 | 10 | A Min | AA: 45.79 (+1.42s | 3.0%) | Aquastar | 07/16/2025 | 2025 Texas Age Group Championships | |
| 114 | Abraham Cheng | 47.23 | 9 | A Min | AA: 45.79 (+1.44s | 3.0%) | Aquazot Swim Club | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 115 | Daniel Zhao | 47.28 | 10 | A Min | AA: 45.79 (+1.49s | 3.2%) | Unattached | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 116 | Anthony Ma | 47.28 | 9 | A Min | AA: 45.79 (+1.49s | 3.2%) | Cottonwood Heights Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 117 | Matias Cardona | 47.28 | 9 | A Min | AA: 45.79 (+1.49s | 3.2%) | SwimFast | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 118 | Thomas Sayer | 47.38 | 9 | A Min | AA: 45.79 (+1.59s | 3.4%) | Foxjets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 119 | Dylan Deahn | 47.43 | 8 | A Min | AA: 45.79 (+1.64s | 3.5%) | Unattached | 07/31/2025 | 2025 Central Zone 14 Under Championship Mee | |
| 120 | Jason Ye | 47.43 | 9 | A Min | AA: 45.79 (+1.64s | 3.5%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 121 | Mason Ryu | 47.43 | 9 | A Min | AA: 45.79 (+1.64s | 3.5%) | Klg Sports Swim Team | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 122 | Hamilton Rule | 47.44 | 10 | A Min | AA: 45.79 (+1.65s | 3.5%) | Unattached | 08/06/2025 | 2025 Summer Elite Showcase | |
| 123 | Kamran Clapp | 47.46 | 10 | A Min | AA: 45.79 (+1.67s | 3.5%) | Unattached | 08/06/2025 | 2025 Western Zone Age Group Championships | |
| 124 | Andy Wang | 47.50 | 9 | A Min | AA: 45.79 (+1.71s | 3.6%) | Tualatin Hills Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 125 | 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 | |
| 126 | Owen Newton | 47.54 | 9 | A Min | AA: 45.79 (+1.75s | 3.7%) | SwimNation Aquatics Programs | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 127 | Aleksandr Rybin | 47.55 | 9 | A Min | AA: 45.79 (+1.76s | 3.7%) | King Aquatic Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 128 | Koku Saddawi-Banno | 47.57 | 8 | A Min | AA: 45.79 (+1.78s | 3.7%) | Jbarracudas Swim Team | 07/11/2025 | 2025 SI JBST All Ages NTS Meet | |
| 129 | Jayden Duanmu | 47.59 | 10 | A Min | AA: 45.79 (+1.80s | 3.8%) | Aquajets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 130 | 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 | |
| 131 | Caleb Peykoff | 47.72 | 10 | A Min | AA: 45.79 (+1.93s | 4.0%) | San Clemente Aquatic Team | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 132 | Oscar Holler | 47.75 | 10 | A Min | AA: 45.79 (+1.96s | 4.1%) | Milpitas Aquatic Club | 07/19/2025 | Alto Last Splash | |
| 133 | Clayton Chester | 47.76 | 9 | A Min | AA: 45.79 (+1.97s | 4.1%) | Heartland Swim Assoc | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 134 | Owen Schulte | 47.76 | 9 | A Min | AA: 45.79 (+1.97s | 4.1%) | South Shore Sails | 07/16/2025 | 2025 Texas Age Group Championships | |
| 135 | Rory Cullen | 47.80 | 10 | A Min | AA: 45.79 (+2.01s | 4.2%) | Sarasota Sharks | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 136 | 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 | |
| 137 | Tyler Zhang | 47.85 | 10 | A Min | AA: 45.79 (+2.06s | 4.3%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 138 | Simon Feldman | 47.87 | 8 | A Min | AA: 45.79 (+2.08s | 4.3%) | Patriot Aquatics | 06/12/2025 | 2025 RAFC Summer Solstice | |
| 139 | Alexander Kovnatsky | 47.90 | 8 | BB Min | A: 47.89 (+0.01s | 0.0%) | Los Angeles Swim Club | 07/25/2024 | 2024 CA SCS BREA Summer A G Champs | |
| 140 | Zachary Zeng | 47.97 | 9 | BB Min | A: 47.89 (+0.08s | 0.2%) | Waterloo Swimming | 07/16/2025 | 2025 Texas Age Group Championships | |
| 141 | Dylan sun | 47.99 | 9 | BB Min | A: 47.89 (+0.10s | 0.2%) | Brea Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 142 | Toby Shen | 47.99 | 10 | BB Min | A: 47.89 (+0.10s | 0.2%) | South Pasadena Sea Tigers | 07/24/2025 | 2025 CA SCS Summer A G Champs CANY | |
| 143 | Hei Chan | 48.01 | 10 | BB Min | A: 47.89 (+0.12s | 0.2%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 144 | Eli Savitski | 48.04 | 10 | BB Min | A: 47.89 (+0.15s | 0.3%) | Highlander Aquatic Club | 06/12/2025 | 2025 RAFC Summer Solstice | |
| 145 | Dean Hunter | 48.04 | 9 | BB Min | A: 47.89 (+0.15s | 0.3%) | Sporting Jax Aquatic Club | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 146 | Paolo Fababaer | 48.04 | 10 | BB Min | A: 47.89 (+0.15s | 0.3%) | First Colony Swim Team, Inc. | 07/16/2025 | 2025 Texas Age Group Championships | |
| 147 | Joshua Bond | 48.09 | 9 | BB Min | A: 47.89 (+0.20s | 0.4%) | Socal Aquatics Association | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 148 | August Liao | 48.10 | 9 | BB Min | A: 47.89 (+0.21s | 0.4%) | Canyons Aquatic Club | 07/24/2025 | 2025 CA SCS Summer A G Champs CANY | |
| 149 | Boxuan Yu | 48.10 | 10 | BB Min | A: 47.89 (+0.21s | 0.4%) | Pacific Dragons Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 150 | Matvey Fadeev | 48.13 | 9 | BB Min | A: 47.89 (+0.24s | 0.5%) | Issaquah Swim Team | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
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.