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 | |
|---|---|---|---|---|---|---|---|---|---|
| 951 | Mark Antonucci | 44.26 | 10 | BB Min | A: 42.09 (+2.17s | 4.9%) | Rhode Island Aquatic Club | 03/13/2026 | 2026 Shawmut NE Cup Championship | |
| 952 | Jackson Luding | 44.26 | 8 | BB Min | A: 42.09 (+2.17s | 4.9%) | Asphalt Green Unified Aquatics | 01/17/2026 | 2026 MR AGUA MLK Invitational | |
| 953 | Nicholas Mosendz | 44.26 | 10 | BB Min | A: 42.09 (+2.17s | 4.9%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 954 | Lucas Saavedra | 44.27 | 10 | BB Min | A: 42.09 (+2.18s | 4.9%) | Swim Streamline at Northampton | 12/20/2024 | 2024 Gulf Fall Champs (TASC) | |
| 955 | Owen Schulte | 44.28 | 10 | BB Min | A: 42.09 (+2.19s | 4.9%) | South Shore Sails | 01/17/2025 | 2025 TWST Speedo Winter Classic Invitational | |
| 956 | Noah Nabity | 44.28 | 10 | BB Min | A: 42.09 (+2.19s | 4.9%) | Blair YMCA Swim Team | 01/31/2026 | 2026 MW App NYA January YMCA Meet | |
| 957 | Thomas Sedano | 44.28 | 10 | BB Min | A: 42.09 (+2.19s | 4.9%) | Monterey Bay Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 958 | Savelii Dorofieiev | 44.29 | 10 | BB Min | A: 42.09 (+2.20s | 5.0%) | Saint Petersburg Aquatics | 02/06/2026 | 2026 TBAC Winter Meet Copied | |
| 959 | Zubin Reuter | 44.30 | 10 | BB Min | A: 42.09 (+2.21s | 5.0%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 960 | Nolan Chan | 44.30 | 10 | BB Min | A: 42.09 (+2.21s | 5.0%) | Phoenix Swimming | 11/21/2025 | 2025 NE ABF Nov Trials And Final Meet | |
| 961 | Yirui Qiao | 44.30 | 9 | BB Min | A: 42.09 (+2.21s | 5.0%) | YMCA Fairfax County Reston | 02/07/2026 | 2026 MAKO QUALIFIER | |
| 962 | Joseph Olson | 44.31 | 10 | BB Min | A: 42.09 (+2.22s | 5.0%) | Caldera | 02/14/2025 | 2025 OR HS 5a 4 | |
| 963 | Cayden Willamowski | 44.31 | 9 | BB Min | A: 42.09 (+2.22s | 5.0%) | Lima Family YMCA Swim Team | 03/12/2026 | 2026 OH SC Junior Championships | |
| 964 | Arlo Holland | 44.31 | 10 | BB Min | A: 42.09 (+2.22s | 5.0%) | Excel Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 3 Approved | |
| 965 | Evan Tomizawa | 44.32 | 10 | BB Min | A: 42.09 (+2.23s | 5.0%) | Kamehameha Swim Club | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 966 | Eugene Grechukhin | 44.32 | 10 | BB Min | A: 42.09 (+2.23s | 5.0%) | Empire Swimming | 02/20/2026 | 2026 MR Silvers North Championship YMID | |
| 967 | Michael Fan | 44.32 | 10 | BB Min | A: 42.09 (+2.23s | 5.0%) | High Performance Aquatic Club | 02/13/2026 | 2026 ST HPAC STX Champs South | |
| 968 | Mason Lam | 44.33 | 9 | BB Min | A: 42.09 (+2.24s | 5.1%) | Eagle Swim Team Inc. | 11/14/2025 | 2025 NBAC Thanksgiving Meet | |
| 969 | Ethan Gaffin | 44.35 | 9 | BB Min | A: 42.09 (+2.26s | 5.1%) | Unattached | 04/10/2026 | 2026 ST SASA Sombrero Series Showdown | |
| 970 | Fyodor Manokhin | 44.35 | 10 | BB Min | A: 42.09 (+2.26s | 5.1%) | Bravo Swim Team | 02/20/2026 | 2026 FG SCY BB Championships SOUTH | |
| 971 | Christian Briscoe | 44.36 | 10 | BB Min | A: 42.09 (+2.27s | 5.1%) | Marlins Of Raleigh | 02/13/2026 | Speedo 2026 MOR Short Course Qualifier Meet | |
| 972 | Adam Jiang | 44.37 | 10 | BB Min | A: 42.09 (+2.28s | 5.1%) | Waterloo Swimming | 02/06/2026 | 2026 ST AQTX STX Champs North | |
| 973 | Vance Schildknecht | 44.38 | 9 | BB Min | A: 42.09 (+2.29s | 5.2%) | Ransom Everglades Aquatic Club | 10/10/2025 | 2025 Gulliver Fall Classic | |
| 974 | Christian Hernandez | 44.38 | 10 | BB Min | A: 42.09 (+2.29s | 5.2%) | Walnut Creek Aquabears | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 975 | Ibrahim Ghanem | 44.38 | 9 | BB Min | A: 42.09 (+2.29s | 5.2%) | Romulus Torpedoes Swim Club | 01/31/2026 | 2026 Guppy Bowl | |
| 976 | Wesley Lai | 44.39 | 10 | BB Min | A: 42.09 (+2.30s | 5.2%) | Harbor Seals | 02/28/2026 | 2026 MR QNS I Know I Can Invitational | |
| 977 | Samuel Torborg | 44.39 | 10 | BB Min | A: 42.09 (+2.30s | 5.2%) | Hawks Swimming Association | 11/14/2025 | 2025 MR VAC Viking Classic Invitational | |
| 978 | James Lorenzoni | 44.39 | 10 | BB Min | A: 42.09 (+2.30s | 5.2%) | Cavalier Aquatics/Piedmont Fam | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 979 | Michael Provenzano | 44.39 | 10 | BB Min | A: 42.09 (+2.30s | 5.2%) | Trident Aquatic Club | 02/28/2026 | 2026 MR QNS I Know I Can Invitational | |
| 980 | Holden Hammond | 44.40 | 10 | BB Min | A: 42.09 (+2.31s | 5.2%) | Silver Spring YMCA Piranhas | 12/20/2025 | 2025 Splash And Dash | |
| 981 | Eian Boscana | 44.40 | 9 | BB Min | A: 42.09 (+2.31s | 5.2%) | Summerville Family YMCA | 03/19/2026 | 2026 USRY Short Course Champs | |
| 982 | Colin Camacho | 44.40 | 10 | BB Min | A: 42.09 (+2.31s | 5.2%) | Mason Manta Rays | 03/12/2026 | 2026 OH SC Junior Championships | |
| 983 | Connor Lee | 44.40 | 8 | BB Min | A: 42.09 (+2.31s | 5.2%) | Condors Swim Club | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 984 | Caleb Taussig | 44.40 | 9 | BB Min | A: 42.09 (+2.31s | 5.2%) | Denver Swim Academy | 01/02/2026 | 2026 CO COSA New Year Open | |
| 985 | Jigdel Wangchuk | 44.41 | 9 | BB Min | A: 42.09 (+2.32s | 5.2%) | Twisters Swim Club | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 986 | Henry Chenier | 44.42 | 10 | BB Min | A: 42.09 (+2.33s | 5.2%) | YMCA OF Western North Carolina | 03/06/2026 | Jon Jolley GYSSA 2026 | |
| 987 | Caleb Pan | 44.42 | 10 | BB Min | A: 42.09 (+2.33s | 5.2%) | West Coast Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 3 Approved | |
| 988 | Sakuto Kaneko | 44.42 | 10 | BB Min | A: 42.09 (+2.33s | 5.2%) | North Shore Swim Club | 03/20/2026 | 2026 NE NSSC March Madness At MIT | |
| 989 | Keegan McIsaac-Smith | 44.43 | 10 | BB Min | A: 42.09 (+2.34s | 5.3%) | Crimson Aquatics | 01/09/2026 | 2026 NE CRIM Jan Team Specialty | |
| 990 | Brooks Vondersmith | 44.44 | 10 | BB Min | A: 42.09 (+2.35s | 5.3%) | Hanover Aquatics | 12/04/2025 | 2025 RAYS Nutcracker Classic Copied | |
| 991 | 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 | |
| 992 | Will Greene | 44.45 | 10 | BB Min | A: 42.09 (+2.36s | 5.3%) | Charles River Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 993 | 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 | |
| 994 | David Yakubov | 44.46 | 10 | BB Min | A: 42.09 (+2.37s | 5.3%) | Matchpoint Nyc | 10/10/2025 | 2025 MR LIE Octoberfest Invitational | |
| 995 | 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 | |
| 996 | Paxton Goldsborough | 44.46 | 10 | BB Min | A: 42.09 (+2.37s | 5.3%) | Academy Swim Club | 10/25/2025 | 2025 HI 25th Annual Bill Smith Invitational | |
| 997 | Jayke Hung | 44.46 | 10 | BB Min | A: 42.09 (+2.37s | 5.3%) | Bellevue Club Swim Team | 02/27/2026 | 2026 PN February AGI, Div 3 Approved | |
| 998 | Michael Cheng | 44.46 | 9 | BB Min | A: 42.09 (+2.37s | 5.3%) | Brea Aquatics | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 999 | Ty Hoggard | 44.46 | 10 | BB Min | A: 42.09 (+2.37s | 5.3%) | Blue Dolfins | 10/25/2025 | 2025 Halloween Spooktacular | |
| 1000 | Anthony Yegorov | 44.49 | 10 | BB Min | A: 42.09 (+2.40s | 5.4%) | Scorpion Swim Club | 01/30/2026 | 2026 NE GS Silver Championships | |
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.