USA Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1151 | Myer Tan | 45.00 | 9 | BB Min | A: 42.09 (+2.91s | 6.5%) | Three Village Swim Club | 03/27/2026 | 2026 MR Bronze Championship South LIE | |
| 1152 | Henry Jarchow | 45.01 | 9 | BB Min | A: 42.09 (+2.92s | 6.5%) | St Croix Swim Club | 02/27/2026 | 2026 MN MAN Minnesota Regional Championship | |
| 1153 | Maxwell Yao | 45.01 | 9 | BB Min | A: 42.09 (+2.92s | 6.5%) | Gilroy Gators Swim Team | 10/25/2025 | GGST Spooktacular 2025 | |
| 1154 | John Murray | 45.01 | 10 | BB Min | A: 42.09 (+2.92s | 6.5%) | Greater Lowell Family YMCA | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 1155 | Nathan Plymale | 45.01 | 10 | BB Min | A: 42.09 (+2.92s | 6.5%) | Bowling Green Swim Club | 02/19/2026 | 2026 OH SOS SC Regional Championships | |
| 1156 | Caleb Stone | 45.01 | 10 | BB Min | A: 42.09 (+2.92s | 6.5%) | Bellingham Bay Swim Team | 05/15/2026 | 2026 PN TAC Spring Thunderbird Approved | |
| 1157 | Leo Yang | 45.02 | 10 | BB Min | A: 42.09 (+2.93s | 6.5%) | YMCA Fairfax County Reston | 02/07/2026 | 2026 MAKO QUALIFIER | |
| 1158 | Thomas Balban | 45.02 | 9 | BB Min | A: 42.09 (+2.93s | 6.5%) | Phoenix Aquatic Club | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1159 | George Howe | 45.03 | 9 | BB Min | A: 42.09 (+2.94s | 6.5%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 12/06/2025 | SLA Holiday Blast | |
| 1160 | Hei Chan | 45.03 | 10 | BB Min | A: 42.09 (+2.94s | 6.5%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 1161 | Ivan Smarshchok | 45.03 | 9 | BB Min | A: 42.09 (+2.94s | 6.5%) | King Aquatic Club | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 1162 | Xander Liu | 45.04 | 10 | BB Min | A: 42.09 (+2.95s | 6.5%) | Sailfish | 03/28/2026 | 2026 ST SGA Spring Fling Meet | |
| 1163 | Austin Pham | 45.04 | 10 | BB Min | A: 42.09 (+2.95s | 6.5%) | Foothills Swim Team | 03/06/2026 | 2026 CO 14 U Silver State | |
| 1164 | Ethan Zhong | 45.05 | 9 | BB Min | A: 42.09 (+2.96s | 6.6%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 1165 | Nicholas Nagy | 45.05 | 10 | BB Min | A: 42.09 (+2.96s | 6.6%) | Northeast CT Aquatics | 04/10/2026 | 2026 GTSA TYR Spring Championship | |
| 1166 | William Mager | 45.05 | 9 | BB Min | A: 42.09 (+2.96s | 6.6%) | Green Bay Swim Club | 03/29/2025 | 2025 MN MYAS Midwest Regional Swim Meet | |
| 1167 | Robert Liu | 45.06 | 9 | BB Min | A: 42.09 (+2.97s | 6.6%) | Csp Tideriders | 02/27/2026 | Ozark Division I Championship | |
| 1168 | Troy Dabaj | 45.07 | 9 | BB Min | A: 42.09 (+2.98s | 6.6%) | Tac Titans | 06/07/2026 | 2026 TAC TITANS June SCY Intrasquad Meet | |
| 1169 | Sebastian Machado | 45.07 | 9 | BB Min | A: 42.09 (+2.98s | 6.6%) | South Florida Stallions | 06/20/2026 | NMST BMHG June Summer Invite 26 (SCY) Cop | |
| 1170 | Benson Lao | 45.07 | 9 | BB Min | A: 42.09 (+2.98s | 6.6%) | Long Island Aquatic Club | 10/25/2025 | 2025 MR LIAC Chappy S Invitational | |
| 1171 | Declan Sederholm | 45.08 | 10 | BB Min | A: 42.09 (+2.99s | 6.6%) | Hilltop Aquatic Swim Team | 03/05/2025 | 2025 Short Course UTAGS Championships | |
| 1172 | Wolf Smith | 45.08 | 10 | BB Min | A: 42.09 (+2.99s | 6.6%) | Atlantis Swimming | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | |
| 1173 | Theodore Janson | 45.08 | 10 | BB Min | A: 42.09 (+2.99s | 6.6%) | Central Minnesota Aquatics | 02/27/2026 | 2026 MN MTKA Minnesota Regional Championship | |
| 1174 | Henry Sundberg | 45.08 | 8 | BB Min | A: 42.09 (+2.99s | 6.6%) | Univ. of Denver Hilltoppers | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 1175 | Julian Chan | 45.09 | 10 | BB Min | A: 42.09 (+3.00s | 6.7%) | Nitro Swimming | 01/31/2026 | 2026 ST NTRO Fiery Flames | |
| 1176 | Dolan Carroll | 45.09 | 10 | BB Min | A: 42.09 (+3.00s | 6.7%) | Cincinnati Marlins | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1177 | Oliver Mearns | 45.10 | 10 | BB Min | A: 42.09 (+3.01s | 6.7%) | Greensboro Community YMCA | 01/23/2026 | GCY Winter Meet 2026 | |
| 1178 | Eric Ruan | 45.10 | 9 | BB Min | A: 42.09 (+3.01s | 6.7%) | South East Metro Sharks | 01/25/2026 | 2026 MN HURR January Invitational | |
| 1179 | Christopher Porembka | 45.11 | 10 | BB Min | A: 42.09 (+3.02s | 6.7%) | Fast Fins Elite | 10/19/2024 | 2024 LSST October Open Meet | |
| 1180 | Steven Kimeu | 45.11 | 10 | BB Min | A: 42.09 (+3.02s | 6.7%) | Rochester Swim Club | 02/27/2026 | 2026 MN RSC Minnesota Regional Championship | |
| 1181 | Caeden DaSalla | 45.11 | 10 | BB Min | A: 42.09 (+3.02s | 6.7%) | Long Island Aquatic Club | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 1182 | Sebastian Schnabl | 45.12 | 9 | BB Min | A: 42.09 (+3.03s | 6.7%) | Asphalt Green Unified Aquatics | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1183 | Ryan Hartmann | 45.13 | 9 | BB Min | A: 42.09 (+3.04s | 6.7%) | Lakewood Ranch Swim Associatio | 01/23/2026 | 2026 Hot Chocolate Invite | |
| 1184 | Holden Ling | 45.13 | 10 | BB Min | A: 42.09 (+3.04s | 6.7%) | Pacific Swimming Zone | 04/26/2026 | 2026 Pacific Swimming Zone All Star Meet | |
| 1185 | Ching-Hung Chou | 45.13 | 10 | BB Min | A: 42.09 (+3.04s | 6.7%) | Bulldog Aquatic Club | 03/07/2026 | 2026 Lake Erie Regional Meet | |
| 1186 | Carson Logar | 45.13 | 10 | BB Min | A: 42.09 (+3.04s | 6.7%) | Mecklenburg Swim Association | 03/20/2026 | 2026 STAR Tar Heel States | |
| 1187 | Charles Knigge | 45.13 | 10 | BB Min | A: 42.09 (+3.04s | 6.7%) | Spokane Waves Aquatic Team | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 1188 | Kai Jyawook | 45.13 | 10 | BB Min | A: 42.09 (+3.04s | 6.7%) | H2okie Aquatics | 12/04/2025 | 14th Annual Swim Tri Speedo Winter Champs | |
| 1189 | Joseph Lin | 45.14 | 10 | BB Min | A: 42.09 (+3.05s | 6.8%) | Madison Swimming Association | 02/06/2026 | 2026 SES Region 3 Champions | |
| 1190 | Tristan Au | 45.15 | 9 | BB Min | A: 42.09 (+3.06s | 6.8%) | Mason Manta Rays | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1191 | Charles Doran | 45.15 | 10 | BB Min | A: 42.09 (+3.06s | 6.8%) | Nova of Virginia | 01/09/2026 | NOVA New Year S Kick Off | |
| 1192 | Ishaan Malik | 45.15 | 10 | BB Min | A: 42.09 (+3.06s | 6.8%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 1193 | Lucas Romero | 45.16 | 8 | BB Min | A: 42.09 (+3.07s | 6.8%) | Long Island Aquatic Club | 02/20/2026 | 2026 MR Silvers Championship South HAUP | |
| 1194 | Oliver Gist-Pitts | 45.16 | 10 | BB Min | A: 42.09 (+3.07s | 6.8%) | Boulder Swim Team | 03/14/2025 | 2025 CO NJ Mile High Championships | |
| 1195 | Lukas Fort | 45.16 | 9 | BB Min | A: 42.09 (+3.07s | 6.8%) | Bainbridge Island Swim Club | 01/31/2026 | 2026 PN BISC Bluefin Invitational | |
| 1196 | Castle Cline | 45.18 | 10 | BB Min | A: 42.09 (+3.09s | 6.8%) | Seattle Metropolitan Aquatic C | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 1197 | Matt Borremans | 45.18 | 9 | BB Min | A: 42.09 (+3.09s | 6.8%) | YMCA of South Florida | 02/20/2026 | 2026 FG SCY BB Championships SOUTH | |
| 1198 | Daniel Reschke | 45.18 | 10 | BB Min | A: 42.09 (+3.09s | 6.8%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 1199 | Beck Merkle | 45.20 | 10 | BB Min | A: 42.09 (+3.11s | 6.9%) | Jersey Wahoos | 11/07/2025 | 2025 Mid Atlantic AG Championship Showdown | |
| 1200 | Seth Snyder | 45.20 | 10 | BB Min | A: 42.09 (+3.11s | 6.9%) | Lynchburg YMCA Swim Team | 02/27/2026 | 2026 SW District Champs 9 Over | |
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.