USA Boys 10 & under - 50 M Back
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 | William Yao | 45.79 | 10 | BB Min | A: 43.09 (+2.70s | 5.9%) | Fontana Aquatics Club | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 1152 | Aden Sun | 45.79 | 10 | BB Min | A: 43.09 (+2.70s | 5.9%) | Burlingame Aquatics | 06/20/2026 | Alto Summer Swelter | |
| 1153 | Jameson Leung | 45.80 | 10 | BB Min | A: 43.09 (+2.71s | 5.9%) | Trident Aquatic Club | 08/06/2025 | 2025 Summer Elite Showcase | |
| 1154 | Ellis Bell | 45.81 | 9 | BB Min | A: 43.09 (+2.72s | 5.9%) | Stingrays Swim Team | 05/01/2026 | 2026 Helen Wang Sunflower Classic | |
| 1155 | Jackson Hopkins | 45.81 | 10 | BB Min | A: 43.09 (+2.72s | 5.9%) | Blue Dolfins | 05/15/2026 | 2026 PA Long Course Invite | |
| 1156 | Caleb Ingraham | 45.81 | 10 | BB Min | A: 43.09 (+2.72s | 5.9%) | Alamo Area Aquatic Association | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 1157 | Quentyn Boerboom | 45.81 | 10 | BB Min | A: 43.09 (+2.72s | 5.9%) | Southwest Swim Club | 06/13/2026 | VAST Splash | |
| 1158 | Anthony Yanik | 45.82 | 10 | BB Min | A: 43.09 (+2.73s | 6.0%) | Kentucky Aquatics | 07/16/2026 | 2026 Kentucky Swimming LC Championship 2 Co | |
| 1159 | Leo Steege | 45.82 | 10 | BB Min | A: 43.09 (+2.73s | 6.0%) | Unattached | 06/19/2026 | 2026 MultiCultural Zones | |
| 1160 | Caleb Pan | 45.82 | 10 | BB Min | A: 43.09 (+2.73s | 6.0%) | West Coast Aquatics | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 1161 | Marcus Wang | 45.82 | 10 | BB Min | A: 43.09 (+2.73s | 6.0%) | Pacific Dragons Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 1162 | Eddie Bi | 45.82 | 10 | BB Min | A: 43.09 (+2.73s | 6.0%) | California Dolphins Swim Team | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 1163 | Zachary Morrish | 45.82 | 9 | BB Min | A: 43.09 (+2.73s | 6.0%) | Just Care Aquatics Tritons | 06/26/2026 | 2026 BD EPAP Jack White Memorial Classic | |
| 1164 | Chen Lin | 45.83 | 9 | BB Min | A: 43.09 (+2.74s | 6.0%) | Gator Swim Club | 06/05/2026 | 2026 Sunshine State Games | |
| 1165 | Hudson Kipp | 45.83 | 9 | BB Min | A: 43.09 (+2.74s | 6.0%) | Buckeye Swim Club | 07/23/2026 | 2026 OH LC Junior Championships | |
| 1166 | Elliott Linsmeier | 45.83 | 10 | BB Min | A: 43.09 (+2.74s | 6.0%) | Ramona Swim Team | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 1167 | James Dyatlovitsky | 45.83 | 8 | BB Min | A: 43.09 (+2.74s | 6.0%) | Excel Aquatics | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 1168 | Oliver Aires | 45.85 | 9 | BB Min | A: 43.09 (+2.76s | 6.0%) | Elk Grove Aquatics Club | 05/24/2025 | 2025 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 1169 | Maddox Fish | 45.85 | 9 | BB Min | A: 43.09 (+2.76s | 6.0%) | Pikes Peak Athletics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 1170 | Samuel Pratt | 45.85 | 9 | BB Min | A: 43.09 (+2.76s | 6.0%) | United Swim Club | 06/18/2026 | 2026 June Classic | |
| 1171 | James Ballard | 45.86 | 10 | BB Min | A: 43.09 (+2.77s | 6.0%) | Rochester Swim Club | 07/17/2026 | 2026 MN MTKA Minnesota Regional Championship | |
| 1172 | Truman Moderski | 45.86 | 8 | BB Min | A: 43.09 (+2.77s | 6.0%) | Evergreen Hurricanes | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 1173 | James Allen | 45.87 | 9 | BB Min | A: 43.09 (+2.78s | 6.1%) | Bolles School Sharks | 06/18/2026 | 2026 June Classic | |
| 1174 | Gideon Bernard | 45.88 | 9 | BB Min | A: 43.09 (+2.79s | 6.1%) | Sea Devils | 05/28/2026 | 2026 MN WOLF HUFF N PUFF INVITE | |
| 1175 | Elias Walker | 45.88 | 8 | BB Min | A: 43.09 (+2.79s | 6.1%) | North Baltimore Aquatic Club | 07/24/2026 | 2026 Maryland Long Course Junior Championship | |
| 1176 | Bode McCollum | 45.88 | 10 | BB Min | A: 43.09 (+2.79s | 6.1%) | Aces Swim Club | 05/15/2026 | 2026 CO ACES Spring Invite | |
| 1177 | Gage Tucker | 45.89 | 9 | BB Min | A: 43.09 (+2.80s | 6.1%) | Nation\\\\\\'s Capital Swim Club | 06/05/2026 | HNVR Storm Surge 2026 | |
| 1178 | Owen Friedman | 45.89 | 9 | BB Min | A: 43.09 (+2.80s | 6.1%) | Legacy Aquatics | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 1179 | Cameron Mendelsohn | 45.92 | 9 | BB Min | A: 43.09 (+2.83s | 6.2%) | Life Time Minnesota Swim Team | 07/11/2026 | 2026 MN BAC Last Chance Invitational | |
| 1180 | Elias Lien | 45.93 | 8 | BB Min | A: 43.09 (+2.84s | 6.2%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 1181 | Romeo Ottaviano | 45.93 | 9 | BB Min | A: 43.09 (+2.84s | 6.2%) | Sarasota Sharks | 05/15/2026 | 2026 Kent B Holdren Memorial Meet | |
| 1182 | Mason Verwers | 45.94 | 9 | BB Min | A: 43.09 (+2.85s | 6.2%) | Unattached | 06/26/2026 | 2026 CO Zone 2 District Meet DU | |
| 1183 | Andrei Talalay | 45.95 | 9 | BB Min | A: 43.09 (+2.86s | 6.2%) | Tualatin Hills Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 1184 | Atharv Tiruke | 45.96 | 10 | BB Min | A: 43.09 (+2.87s | 6.2%) | Sunnyvale Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 1185 | Frans van Wagenberg | 45.96 | 10 | BB Min | A: 43.09 (+2.87s | 6.2%) | Huntsville Swim Association | 05/16/2026 | NAC LC May Classic | |
| 1186 | Cooper Francis | 45.97 | 9 | BB Min | A: 43.09 (+2.88s | 6.3%) | Nova of Virginia | 06/25/2026 | LC Central District Champs | |
| 1187 | Milan Gonzalez | 45.97 | 9 | BB Min | A: 43.09 (+2.88s | 6.3%) | Commerce Aquatics Swim Team | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 1188 | Ian Liu | 45.98 | 9 | BB Min | A: 43.09 (+2.89s | 6.3%) | Riptide Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1189 | Callahan Espiritu | 45.98 | 8 | BB Min | A: 43.09 (+2.89s | 6.3%) | Aquazot Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 1190 | Noah Odom | 45.98 | 9 | BB Min | A: 43.09 (+2.89s | 6.3%) | Greater Pensacola Aquatic Club | 04/18/2026 | 2026 CMSA First Chance LCM | |
| 1191 | Thomas Rice | 45.98 | 10 | BB Min | A: 43.09 (+2.89s | 6.3%) | Kentucky Aquatics | 07/16/2026 | 2026 Kentucky Swimming LC Championship 2 Co | |
| 1192 | Leo Beaver | 45.98 | 10 | BB Min | A: 43.09 (+2.89s | 6.3%) | Portland Aquatic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 1193 | Noah Olusanya | 46.00 | 10 | BB Min | A: 43.09 (+2.91s | 6.3%) | 07/09/2026 | 2026 FL Summer Age Group Championships | ||
| 1194 | Harvey Bollefer | 46.00 | 9 | BB Min | A: 43.09 (+2.91s | 6.3%) | Aces Swim Club | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 1195 | Ryan Gekht | 46.01 | 10 | BB Min | A: 43.09 (+2.92s | 6.3%) | North Baltimore Aquatic Club | 07/24/2026 | 2026 Maryland Long Course Junior Championship | |
| 1196 | Henry Chenier | 46.01 | 10 | BB Min | A: 43.09 (+2.92s | 6.3%) | Blues Aquatics Asheville | 05/15/2026 | 2026 NCAC Meet On The Hill | |
| 1197 | Walter Lientz | 46.01 | 9 | BB Min | A: 43.09 (+2.92s | 6.3%) | Occoquan Swimming | 06/05/2026 | HNVR Storm Surge 2026 | |
| 1198 | Richard Wu | 46.01 | 10 | BB Min | A: 43.09 (+2.92s | 6.3%) | Peddie Aquatic Association | 06/20/2026 | 2026 Hot Summer Nights | |
| 1199 | Lewis Wan | 46.01 | 10 | BB Min | A: 43.09 (+2.92s | 6.3%) | Tac Titans | 07/24/2026 | 2026 TAC TITANS Closeout Meet | |
| 1200 | Noah Wang | 46.01 | 10 | BB Min | A: 43.09 (+2.92s | 6.3%) | Flatiron Athletic Club | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
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.