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 | |
|---|---|---|---|---|---|---|---|---|---|
| 251 | Dylan Kemmish | 46.88 | 9 | A Min | AA: 45.79 (+1.09s | 2.3%) | Kentucky Aquatics | 04/25/2026 | 2026 Triton Derby Swim Festival | |
| 252 | Jackson Collier | 46.90 | 10 | A Min | AA: 45.79 (+1.11s | 2.4%) | Cypress Fairbanks Swim Club | 06/12/2026 | 2026 ST TXLA Texas Open Invite | |
| 253 | 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 | |
| 254 | Nicholas Medina | 46.92 | 9 | A Min | AA: 45.79 (+1.13s | 2.4%) | Laker Swim | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 255 | 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 | |
| 256 | Alexander Warren Moy | 46.95 | 10 | A Min | AA: 45.79 (+1.16s | 2.5%) | Palo Alto Stanford Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 257 | Enrique Acosta | 46.95 | 10 | A Min | AA: 45.79 (+1.16s | 2.5%) | EL Paso Border Land Swim Team | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 258 | 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 | |
| 259 | Ryan Nesmith | 46.97 | 10 | A Min | AA: 45.79 (+1.18s | 2.5%) | Swim Florida | 04/17/2026 | 2026 GCST Spring Open | |
| 260 | Jayden Silveira | 46.97 | 10 | A Min | AA: 45.79 (+1.18s | 2.5%) | Fast Falcons | 06/25/2026 | 2026 FAST Independence Invitational | |
| 261 | 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 | |
| 262 | Yaroslav Biliavskyi | 46.97 | 10 | A Min | AA: 45.79 (+1.18s | 2.5%) | Tac Titans | 05/15/2026 | 2026 TAC TITANS Spring Fling Meet | |
| 263 | Owen Kramer | 46.99 | 10 | A Min | AA: 45.79 (+1.20s | 2.6%) | New Wave Swim Team | 06/13/2026 | 2026 MOR Liberty Meet | |
| 264 | Yusen Wang | 47.00 | 9 | A Min | AA: 45.79 (+1.21s | 2.6%) | Irvine Novaquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 265 | Owen Tan | 47.01 | 9 | A Min | AA: 45.79 (+1.22s | 2.6%) | Hawaii Swimming Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 266 | Austin Xue | 47.01 | 9 | A Min | AA: 45.79 (+1.22s | 2.6%) | Waterloo Swimming | 06/19/2026 | 2026 ST ASC Firecracker | |
| 267 | Patrick Liu | 47.01 | 10 | A Min | AA: 45.79 (+1.22s | 2.6%) | Tac Titans | 05/15/2026 | 2026 TAC TITANS Spring Fling Meet | |
| 268 | Ari Mobasseri | 47.02 | 8 | A Min | AA: 45.79 (+1.23s | 2.6%) | Aquazot Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 269 | Axton Santiago | 47.02 | 10 | A Min | AA: 45.79 (+1.23s | 2.6%) | Pearl City Aquatics | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 270 | Sebastian McNary | 47.03 | 10 | A Min | AA: 45.79 (+1.24s | 2.6%) | Tiger Aquatics | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 271 | Jackson Staples | 47.04 | 10 | A Min | AA: 45.79 (+1.25s | 2.7%) | Las Cruces Aquatic Team | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 272 | Owen Yuk | 47.05 | 10 | A Min | AA: 45.79 (+1.26s | 2.7%) | Nation\\\\\\'s Capital Swim Club | 06/05/2026 | HNVR Storm Surge 2026 | |
| 273 | 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 | |
| 274 | Aiden Du | 47.06 | 9 | A Min | AA: 45.79 (+1.27s | 2.7%) | Unattached | 07/16/2025 | 2025 Texas Age Group Championships | |
| 275 | Winston Du | 47.07 | 10 | A Min | AA: 45.79 (+1.28s | 2.7%) | Aquajets Swim Team | 06/11/2026 | 2026 MN AQJT Aquajets Summer Spectacular | |
| 276 | 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 | |
| 277 | Sebastian Reilly | 47.09 | 10 | A Min | AA: 45.79 (+1.30s | 2.8%) | Nation\\\\\\'s Capital Swim Club | 05/01/2026 | Speedo Spring Splash | |
| 278 | Christian Bertram | 47.09 | 10 | A Min | AA: 45.79 (+1.30s | 2.8%) | Naval Academy Aquatic Club | 06/12/2026 | 2026 SwimRVA Summer Invitational | |
| 279 | Yihong Xiang | 47.10 | 10 | A Min | AA: 45.79 (+1.31s | 2.8%) | Tualatin Hills Swim Club | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 280 | Max Madera | 47.10 | 10 | A Min | AA: 45.79 (+1.31s | 2.8%) | Fast Falcons | 06/25/2026 | 2026 FAST Independence Invitational | |
| 281 | Ethan Wang | 47.11 | 9 | A Min | AA: 45.79 (+1.32s | 2.8%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 282 | Jaxson Ransom | 47.11 | 10 | A Min | AA: 45.79 (+1.32s | 2.8%) | Valley Swim Team Phoenix | 05/29/2026 | 2026 SwimRVA Success Bell | |
| 283 | Nikoloz Zhorzholiani | 47.11 | 10 | A Min | AA: 45.79 (+1.32s | 2.8%) | Seattle Metropolitan Aquatic C | 05/28/2026 | 2026 IE VS Apple Capital | |
| 284 | Jonathan Nelson | 47.12 | 10 | A Min | AA: 45.79 (+1.33s | 2.8%) | Utah Valley Aquatics | 06/18/2025 | 2025 UT CHAT INVITATIONAL | |
| 285 | Yangyang Xu | 47.13 | 10 | A Min | AA: 45.79 (+1.34s | 2.8%) | Pacific Dragons Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 286 | Leo Blubaugh | 47.13 | 10 | A Min | AA: 45.79 (+1.34s | 2.8%) | Nova of Virginia | 06/11/2026 | NOVA 2026 Virginia Commonwealth Games | |
| 287 | Frans van Wagenberg | 47.13 | 10 | A Min | AA: 45.79 (+1.34s | 2.8%) | Huntsville Swim Association | 04/18/2026 | HSA April LC Meet | |
| 288 | August Baikauskas | 47.14 | 9 | A Min | AA: 45.79 (+1.35s | 2.9%) | Loyola Blakefield Aquatics | 04/11/2026 | 2026 Fox April Long Course Invitational | |
| 289 | Chayton Zhou | 47.15 | 9 | A Min | AA: 45.79 (+1.36s | 2.9%) | Pleasanton Seahawks | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 290 | Noah Thomas | 47.17 | 9 | A Min | AA: 45.79 (+1.38s | 2.9%) | Longhorn Aquatics | 06/26/2026 | 2026 NEAT Long Course STX Championship | |
| 291 | Brooks Nemeth | 47.18 | 9 | A Min | AA: 45.79 (+1.39s | 2.9%) | SwimRVA | 04/18/2026 | 2026 SwimRVA Carnation Clash | |
| 292 | Jacob Fischer | 47.19 | 9 | A Min | AA: 45.79 (+1.40s | 3.0%) | Greater Pensacola Aquatic Club | 06/05/2026 | 2026 GPAC Tom Lalor Invitational | |
| 293 | Luke Xu | 47.19 | 10 | A Min | AA: 45.79 (+1.40s | 3.0%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 294 | Jed El Abed | 47.19 | 10 | A Min | AA: 45.79 (+1.40s | 3.0%) | H2o Swim Team | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 295 | Cayden Lin | 47.22 | 10 | A Min | AA: 45.79 (+1.43s | 3.0%) | Rosemead Rapids | 06/11/2026 | 2026 SCS June AG Invite | |
| 296 | Jake McNair | 47.22 | 9 | A Min | AA: 45.79 (+1.43s | 3.0%) | Bellevue Club Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 297 | Reyansh Dhwajad | 47.23 | 10 | A Min | AA: 45.79 (+1.44s | 3.0%) | SwimMAC Carolina | 06/19/2026 | GSA 70th Annual Eastern Invitational | |
| 298 | 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 | |
| 299 | Hudson Rowlands | 47.23 | 10 | A Min | AA: 45.79 (+1.44s | 3.0%) | Mecklenburg Swim Association | 06/13/2026 | 2026 BSC Model City Invitational | |
| 300 | Evan Yue | 47.24 | 10 | A Min | AA: 45.79 (+1.45s | 3.1%) | Nation\\\\\\'s Capital Swim Club | 05/01/2026 | Speedo Spring Splash | |
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.