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 | |
|---|---|---|---|---|---|---|---|---|---|
| 851 | William Martzke | 44.44 | 10 | BB Min | A: 42.09 (+2.35s | 5.3%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | |
| 852 | Lucas Nguyen | 44.45 | 10 | BB Min | A: 42.09 (+2.36s | 5.3%) | Valley Splash | 10/03/2026 | Quicksilver Santa Cruz Competencia 2026 | |
| 853 | Spencer Frickson | 44.46 | 9 | BB Min | A: 42.09 (+2.37s | 5.3%) | Mako Aquatics | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 854 | Michael Cheng | 44.46 | 9 | BB Min | A: 42.09 (+2.37s | 5.3%) | Brea Aquatics | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 855 | Michael Greenspan | 44.46 | 9 | BB Min | A: 42.09 (+2.37s | 5.3%) | New York Sharks Aquatics | 02/06/2026 | 2026 MR COND Last Chance Invitational | |
| 856 | Aaron Wei | 44.47 | 10 | BB Min | A: 42.09 (+2.38s | 5.4%) | Ensworth Aquatics | 10/10/2026 | Ensworth October Invite | |
| 857 | Bradley Strauss | 44.49 | 10 | BB Min | A: 42.09 (+2.40s | 5.4%) | Jersey Wahoos | 11/07/2025 | 2025 Mid Atlantic AG Championship Showdown | |
| 858 | Aaron Welch | 44.49 | 10 | BB Min | A: 42.09 (+2.40s | 5.4%) | Machine Aquatics | 03/20/2026 | March Madness 2026 | |
| 859 | Samuel Wacek | 44.49 | 10 | BB Min | A: 42.09 (+2.40s | 5.4%) | Alexandria Swim Club | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 860 | Apollo Van Brunt | 44.49 | 8 | BB Min | A: 42.09 (+2.40s | 5.4%) | Kona Aquatics Club | 08/29/2026 | 2026 BIG ISLAND SWIMMING PENTATHLON | |
| 861 | Michael Campbell | 44.49 | 10 | BB Min | A: 42.09 (+2.40s | 5.4%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | |
| 862 | Elliott Lesnau | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | Plymouth Canton Cruisers | 01/16/2026 | SLA Arctic Blast 2026 | |
| 863 | Noah Nabity | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | Blair YMCA Swim Team | 02/07/2026 | 2026 MW App HYAC February Y Meet | |
| 864 | Daniel Pope | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | WeAquatics | 02/13/2026 | 39th Black History Swim Meet | |
| 865 | Ryan Kashani | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | Houston Hydra | 02/21/2025 | 2025 Gulf 12 Under Champs (TASC) | |
| 866 | Matias Venturino | 44.50 | 9 | BB Min | A: 42.09 (+2.41s | 5.4%) | Rockville Montgomery Swim Club | 12/04/2025 | 2025 PV Turkey Claus Showdown | |
| 867 | James Ballard | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | Rochester Swim Club | 10/02/2026 | 2026 MN RSC Fall Pentathlon | |
| 868 | Elliott Linsmeier | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | Ramona Swim Team | 08/08/2026 | 2026 SI CAST All Ages August Wrap Up Meet C | |
| 869 | Adrian Goo | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | Walnut Creek Aquabears | 10/10/2026 | Orinda Aquatics PC SC C B BB+ | |
| 870 | Hendrix Kelly | 44.50 | 10 | BB Min | A: 42.09 (+2.41s | 5.4%) | Madison Swimming Association | 09/26/2026 | 2026 KONA ICE INVITATIONAL | |
| 871 | Grady Seeley | 44.51 | 8 | BB Min | A: 42.09 (+2.42s | 5.4%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 872 | Mikail Adlinsyah | 44.51 | 10 | BB Min | A: 42.09 (+2.42s | 5.4%) | Swim Excellence Academy | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 873 | Ethan Manning | 44.52 | 10 | BB Min | A: 42.09 (+2.43s | 5.5%) | Aces Swim Club | 03/06/2026 | 2026 CO 14 U Silver State | |
| 874 | Oliver Gurtowsky | 44.52 | 10 | BB Min | A: 42.09 (+2.43s | 5.5%) | Dexter Community Aquatic Club | 02/14/2026 | 2026 Best ValenTimes Meet | |
| 875 | Jacob Fischer | 44.52 | 9 | BB Min | A: 42.09 (+2.43s | 5.5%) | Greater Pensacola Aquatic Club | 02/13/2026 | 2026 SES Region 4 Championships | |
| 876 | Leo Ryley | 44.52 | 10 | BB Min | A: 42.09 (+2.43s | 5.5%) | Frederick Area Swim Team | 01/11/2026 | 2026 FOX January Distance Sprint Meet | |
| 877 | William Rickett | 44.53 | 9 | BB Min | A: 42.09 (+2.44s | 5.5%) | Northwest Georgia Aquatics | 01/09/2026 | 2026 MCC January Invite | |
| 878 | Levi Chong | 44.53 | 9 | BB Min | A: 42.09 (+2.44s | 5.5%) | Southwest Stars Swim Club | 09/12/2026 | 2026 Elizabeth Kazeck Fall Sprint | |
| 879 | Hunter Li | 44.54 | 9 | BB Min | A: 42.09 (+2.45s | 5.5%) | All Star Aquatics | 01/17/2026 | PVS January Open 2026 Fairland | |
| 880 | Caffrey Cooke-Ennis | 44.54 | 10 | BB Min | A: 42.09 (+2.45s | 5.5%) | South Shore YMCA Strypers | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 881 | Benjamin Idziak | 44.55 | 9 | BB Min | A: 42.09 (+2.46s | 5.5%) | Livonia Community Swim Club | 01/31/2026 | 2026 Guppy Bowl | |
| 882 | George He | 44.55 | 9 | BB Min | A: 42.09 (+2.46s | 5.5%) | Bellevue Club Swim Team | 10/03/2026 | 2026 PN CSC Fall Classic Invitational Approve | |
| 883 | Hudson Porter | 44.56 | 10 | BB Min | A: 42.09 (+2.47s | 5.5%) | Wave Aquatics | 10/03/2026 | 2026 PN Wave Rocktober Invitational Approved | |
| 884 | Ty Yetter | 44.57 | 9 | BB Min | A: 42.09 (+2.48s | 5.6%) | T2 Aquatics | 09/19/2026 | 2026 GCST FALL OPEN | |
| 885 | Jeremy Pei | 44.57 | 10 | BB Min | A: 42.09 (+2.48s | 5.6%) | Columbia River Swim Team | 10/10/2026 | LA Fall Kick Off 2026 | |
| 886 | Nedin Hadzic | 44.58 | 9 | BB Min | A: 42.09 (+2.49s | 5.6%) | Parkway-Rockwood Gateway Swim | 09/19/2026 | 2026 RCA Fall Classic | |
| 887 | ZhenLin Zhu | 44.59 | 9 | BB Min | A: 42.09 (+2.50s | 5.6%) | Seal Beach Swim Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 888 | Matthew Winn | 44.59 | 9 | BB Min | A: 42.09 (+2.50s | 5.6%) | Stingray Swim Team | 09/26/2026 | 2026 PN TAC Fall Pentathlon Distance Open App | |
| 889 | Adrian Pascu | 44.60 | 9 | BB Min | A: 42.09 (+2.51s | 5.6%) | Gold\\\\\\'s Aquatics Club (Camas) | 10/09/2026 | 2026 OR HEAT Fall Invitational | |
| 890 | Maxim Wirzburger | 44.61 | 10 | BB Min | A: 42.09 (+2.52s | 5.6%) | East Coast C-Cerpants | 11/14/2025 | ISCA Fall Classic Championship 2025 | |
| 891 | Isaac Davis | 44.61 | 10 | BB Min | A: 42.09 (+2.52s | 5.6%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 02/27/2026 | 2026 Junior Cup | |
| 892 | Thomas Louzao | 44.61 | 9 | BB Min | A: 42.09 (+2.52s | 5.6%) | Asphalt Green Unified Aquatics | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 893 | Marcus Lin | 44.61 | 9 | BB Min | A: 42.09 (+2.52s | 5.6%) | Aquazot Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 894 | Quentin Chan | 44.61 | 9 | BB Min | A: 42.09 (+2.52s | 5.6%) | Rio Del Oro Rapids | 09/26/2026 | 2026 CCA Spook Tacular | |
| 895 | Alexander Sheliagin | 44.62 | 9 | BB Min | A: 42.09 (+2.53s | 5.7%) | SwimRight Team | 06/06/2026 | NMST June Invite 26 | |
| 896 | Benjamin Turner | 44.62 | 10 | BB Min | A: 42.09 (+2.53s | 5.7%) | Nova of Virginia | 12/12/2025 | 2025 HVAC Winterfest Invitational | |
| 897 | Zacharia Labyed | 44.62 | 9 | BB Min | A: 42.09 (+2.53s | 5.7%) | North Coast Aquatics | 10/03/2026 | 2026 SI CAST Pentathlon October 3 | |
| 898 | Romeo Ottaviano | 44.62 | 9 | BB Min | A: 42.09 (+2.53s | 5.7%) | Sarasota Sharks | 09/18/2026 | 2026 Sharks IMX Challenge | |
| 899 | Shane Young | 44.63 | 8 | BB Min | A: 42.09 (+2.54s | 5.7%) | Tollefson Swimming | 12/06/2025 | 2025 Reindeer Mini Meet | |
| 900 | Isaac Li | 44.63 | 9 | BB Min | A: 42.09 (+2.54s | 5.7%) | Long Island Aquatic Club | 11/21/2025 | 2025 MR FA Patriot Games Invitational | |
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.