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USA Boys 10 & under - 50 Y 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
8401 Kai Halasz 53.35 9 B: 48.29 (+5.06s | 9.5%) Capital Area Aquatics 09/19/2025 2025 ST AQTX Round Rock Unclassified
8402 Johnny Oussi 53.35 8 B: 48.29 (+5.06s | 9.5%) Unattached 04/11/2025 2025 Boys Girls Clubs National Swim Champs
8403 Isaac Jaurez 53.35 9 B: 48.29 (+5.06s | 9.5%) Kennebec Valley YMCA 02/27/2026 2026 NE Maine State Y Championships
8404 John Wright 53.35 9 B: 48.29 (+5.06s | 9.5%) Egra Waves 10/17/2025 2025 WMS Boo Bash
8405 Dexter Gratton 53.35 10 B: 48.29 (+5.06s | 9.5%) SwimTLC-Parker Phenomena Swim 04/11/2026 2026 CO Falfins Summer Series #1
8406 Cole Smith 53.35 10 B: 48.29 (+5.06s | 9.5%) Voltage Aquatics 07/12/2025 2025 Mashed Potato Dash
8407 Aariv Parekh 53.35 10 B: 48.29 (+5.06s | 9.5%) Jcc Bridgewater Tide 02/14/2026 2026 Will You BB Mine
8408 Ethan Amacker 53.35 8 B: 48.29 (+5.06s | 9.5%) Unattached 01/16/2026 2026 Pentathlon
8409 Jackson Butler 53.35 10 B: 48.29 (+5.06s | 9.5%) Cyclones Swim Team 08/22/2026 NMST Relay Invite 26
8410 Freddie Newman 53.36 9 B: 48.29 (+5.07s | 9.5%) Moraga Valley Pool 11/01/2025 Kati McDermott Memorial Fall Jamboree Invite
8411 Allen Marek 53.36 8 B: 48.29 (+5.07s | 9.5%) YMCA of Austin Swim Alliance 12/06/2025 2025 HPAC 5th Annual Festivus Winterfest
8412 Joshua Chun 53.36 10 B: 48.29 (+5.07s | 9.5%) Seattle Metropolitan Aquatic C 01/17/2026 2026 PN SMAC Winter Invitational Approved
8413 Drew Lamb 53.36 10 B: 48.29 (+5.07s | 9.5%) YMCA East Hampton Hurricanes 01/30/2026 2026 MR SSC Polar Bear Plunge
8414 Denzel Gray 53.36 6 B: 48.29 (+5.07s | 9.5%) Bayside Aquatics 03/21/2026 2026 Maryland 8 Under Championship Meet
8415 Calvin Wilson 53.36 9 B: 48.29 (+5.07s | 9.5%) Magnolia Aquatic Club 12/20/2024 MAC Hosted 2024 Gulf Fall Champs
8416 Vedant Deshmukh 53.36 9 B: 48.29 (+5.07s | 9.5%) YMCA of Greater Nashua Storm 05/09/2026 2026 NE STRM Spring Splash W Distance
8417 Justin Pang 53.37 9 B: 48.29 (+5.08s | 9.5%) Hazen 02/20/2026 2026 WIAA 4A Boys HS State Champs OB
8418 Ellis Del Verne 53.37 9 B: 48.29 (+5.08s | 9.5%) YMCA of the Triangle Area Swim 11/21/2025 2025 YOTA Arena Turkey Classic
8419 Decker Jacobs 53.37 9 B: 48.29 (+5.08s | 9.5%) Northern Lights Swimming Assoc 06/05/2026 2026 MN ALEX Pool Sprints Lake Swim
8420 Eli Schmiesing 53.37 9 B: 48.29 (+5.08s | 9.5%) Greater Columbus Swim Tm Of Oh 02/19/2026 2026 OH UASC SC Regional Championships
8421 Pi Cheng 53.37 10 B: 48.29 (+5.08s | 9.5%) Los Altos Mountain View Aquati 03/28/2026 LAMV C B A+ Meet
8422 Ethan Perez Eskenazi 53.38 9 B: 48.29 (+5.09s | 9.5%) Quince Orchard Swim Academy 11/08/2025 2025 Autumn Mini Meet
8423 Patrick Moore 53.38 8 B: 48.29 (+5.09s | 9.5%) Royal Swimming 11/22/2025 2025 Royal Fall Cup
8424 Sean Kim 53.38 8 B: 48.29 (+5.09s | 9.5%) H2okie Aquatics 02/07/2026 SW District 8 Under Championship
8425 Sammy Castro 53.39 9 B: 48.29 (+5.10s | 9.6%) Twisters Swim Club 02/28/2026 2026 MR QNS I Know I Can Invitational
8426 Hudson Chiu 53.39 7 B: 48.29 (+5.10s | 9.6%) Asphalt Green Unified Aquatics 01/30/2026 2026 MR LIE Second Chance Invitational
8427 Theodore Harris 53.39 8 B: 48.29 (+5.10s | 9.6%) Naval Academy Aquatic Club 11/07/2025 2025 CAC 5th Annual Zachary Spain Memorial Me
8428 Alexander Rodiger 53.39 8 B: 48.29 (+5.10s | 9.6%) The Capitol Sea Devils 02/20/2026 2026 Machine Qualifier
8429 Allen Gao 53.39 7 B: 48.29 (+5.10s | 9.6%) Weymouth Club Waves 05/10/2026 2026 NE NSSC Invitational At BC High
8430 Kellen Lambrechts 53.39 9 B: 48.29 (+5.10s | 9.6%) Watertown Area Swim Club 02/20/2026 2026 SD 12 Under Short Course State A Champ
8431 Parker Elgin 53.40 9 B: 48.29 (+5.11s | 9.6%) Aloha Aquatics Association 11/09/2025 OSL A+ SCY Meet
8432 Elliott Greenwood 53.40 7 B: 48.29 (+5.11s | 9.6%) Cavalier Aquatics/Piedmont Fam 01/31/2026 LY Vs CA Y January Dual
8433 Gabriel Sukut 53.40 7 B: 48.29 (+5.11s | 9.6%) VC Sharks Swim Team 01/24/2026 2026 MN DRGN Fire And Ice Invite
8434 Benjamin Hobson 53.40 9 B: 48.29 (+5.11s | 9.6%) Edina Swim Club 10/10/2026 2026 MN EDI Gator Splash And Dash
8435 Camden Brooks 53.41 10 B: 48.29 (+5.12s | 9.6%) Cardinal and Gold Aquatics 11/14/2025 Harvest Festival 2025
8436 Grayson Peacock 53.41 10 B: 48.29 (+5.12s | 9.6%) Aquatic Club of Elkhorn 01/31/2026 2026 MW SCSC President S Day Meet
8437 Emerson Perry 53.41 8 B: 48.29 (+5.12s | 9.6%) Rockford Riptide 02/07/2026 2026 Grand Rapids Open
8438 Charles Metcalf 53.41 7 B: 48.29 (+5.12s | 9.6%) Arlington Aquatic Club 12/12/2025 2025 MAKO HOLIDAY INVITATIONAL
8439 Reid Rector 53.41 8 B: 48.29 (+5.12s | 9.6%) Falfins Swimming 03/14/2026 2026 CO Zone 5 Championships
8440 Garrett Jones 53.41 10 B: 48.29 (+5.12s | 9.6%) Unattached 08/23/2025 SPA TBAC AUGUST 23, 2025
8441 Everett Rainis 53.41 9 B: 48.29 (+5.12s | 9.6%) Manta Ray Aquatics 09/19/2026 2026 IE MRA Sprint Shootout Copied
25 Back
25.89
25.89
50 Back
27.52
53.41
50 Back
53.41
8442 Emery Xie 53.41 9 B: 48.29 (+5.12s | 9.6%) Wave Aquatics 08/01/2026 2026 PN WAVE Summer Pentathlon Invite Appr
8443 Benson Brewer 53.41 9 B: 48.29 (+5.12s | 9.6%) Sporting Jax Aquatic Club 11/15/2025 EAJ Fall Harvest 2025
8444 Cavan Threlkeld 53.42 9 B: 48.29 (+5.13s | 9.6%) Hampton Virginia Current 11/01/2025 ODAC Rising Stars Meet #2
8445 Micah Zhou 53.42 9 B: 48.29 (+5.13s | 9.6%) Katy Aquatic Team For Youth 09/21/2024 2024 Katy Purple Black White Meet
8446 Jeremy Liu 53.42 10 B: 48.29 (+5.13s | 9.6%) Cascadia Swimming 12/12/2025 2025 OR TTSC Holiday Invitational Meet
8447 Lee Armstrong 53.43 10 B: 48.29 (+5.14s | 9.6%) Life Time Colorado Swim Club 09/26/2026 2026 CO Gregg Gracheck Memorial
8448 Finn Spanel 53.43 9 B: 48.29 (+5.14s | 9.6%) Foxjets Swim Team 10/10/2026 2026 MN FOXJ Fall Invitational
8449 Axel Blomstedt 53.44 8 B: 48.29 (+5.15s | 9.6%) Club Husker 01/24/2026 2026 MW LSS Winterfest
8450 Harshith Paramaguru 53.44 9 B: 48.29 (+5.15s | 9.6%) Eastlake 02/20/2026 2026 WIAA 4A Boys HS State Champs OB

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.