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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
351 Yihong Xiang 46.18 10 BB Min A: 43.09 (+3.09s | 6.7%) Tualatin Hills Swim Club 05/02/2025 2025 THSC Spring Invitational
352 Liam Pennisi 46.20 10 BB Min A: 43.09 (+3.11s | 6.7%) Aquazot Swim Club 07/24/2025 2025 CA SCS RAA Summer A G Champs
353 Lichen Chi 46.22 9 BB Min A: 43.09 (+3.13s | 6.8%) Tualatin Hills Swim Club 07/12/2025 2025 OSI Arena Summer LC 10 U Championships
354 Bryant Stringham 46.22 10 BB Min A: 43.09 (+3.13s | 6.8%) Olympus Aquatics 07/17/2025 2025 UTAGS LC Championships
355 Reid Kelly 46.28 9 BB Min A: 43.09 (+3.19s | 6.9%) Front Range Barracudas 07/11/2025 2025 CO NCS Gold District Championships
356 Nolan Giannini 46.28 9 BB Min A: 43.09 (+3.19s | 6.9%) Puma Aquatic Team 07/16/2025 Renee And Jim Patterson Meet 2025
25 Back
46.28
46.28
50 Back
0.00
46.28
50 Back
46.28
357 Landon Wang 46.28 10 BB Min A: 43.09 (+3.19s | 6.9%) Seattle Metropolitan Aquatic C 05/29/2025 2025 IE VS Apple Capital
358 Ethan Rana 46.30 10 BB Min A: 43.09 (+3.21s | 6.9%) Highlands Ranch Aquatics 07/25/2025 2025 CO CSI Age Group Championships
359 Henry Goddard 46.30 10 BB Min A: 43.09 (+3.21s | 6.9%) Cascadia Swimming 05/30/2025 LA OPEN 2025
360 Shenukha Alahakoon 46.34 10 BB Min A: 43.09 (+3.25s | 7.0%) Tualatin Hills Swim Club 05/02/2025 2025 THSC Spring Invitational
361 Emmett Olsen 46.37 9 BB Min A: 43.09 (+3.28s | 7.1%) Edina Swim Club 07/23/2025 2025 MN NSAC 10 U LC State Championship
362 Louis Yu 46.38 8 BB Min A: 43.09 (+3.29s | 7.1%) Santa Clara Swim Club 07/19/2025 Santa Clara Valley Splash Block Party
363 Noah Wu 46.39 10 BB Min A: 43.09 (+3.30s | 7.1%) Milpitas Aquatic Club 05/23/2025 Zone 1 South May Firecracker 500
364 Federico Cocchiglia 46.44 10 BB Min A: 43.09 (+3.35s | 7.2%) Mercy HealthPlex Sea Wolves 08/06/2025 2025 Summer Elite Showcase
365 Henry Luevano 46.45 8 BB Min A: 43.09 (+3.36s | 7.2%) Aces Swim Club 06/27/2025 2025 CO Zone 2 VMAC Meet
366 Sebastian Horn-Rios 46.46 10 BB Min A: 43.09 (+3.37s | 7.3%) T2 Aquatics 04/11/2025 2025 GCST Spring Invite
367 Alfie Mobbs 46.48 9 BB Min A: 43.09 (+3.39s | 7.3%) Lake Oswego Swim Club 07/12/2025 2025 OSI Arena Summer LC 10 U Championships
368 Samuel Wacek 46.48 10 BB Min A: 43.09 (+3.39s | 7.3%) Alexandria Swim Club 07/18/2025 2025 MN TUNA Minnesota Regional Championship
369 George Peters 46.50 10 BB Min A: 43.09 (+3.41s | 7.3%) Rochester Swim Club 07/18/2025 2025 MN MTKA Minnesota Regional Championship
370 Eames Meek 46.50 10 BB Min A: 43.09 (+3.41s | 7.3%) Highlander Aquatic Club 06/12/2025 2025 RAFC Summer Solstice
371 Brayden Blaine 46.50 10 BB Min A: 43.09 (+3.41s | 7.3%) Montrose Marlins Swim Club 07/25/2025 2025 CO CSI Age Group Championships
372 Enzo Harter 46.51 10 BB Min A: 43.09 (+3.42s | 7.4%) Beaverton Area Aquatics Club 05/30/2025 LA OPEN 2025
373 Idhaant Kamat 46.52 10 BB Min A: 43.09 (+3.43s | 7.4%) Horizon Swimming 07/16/2025 Renee And Jim Patterson Meet 2025
25 Back
46.52
46.52
50 Back
0.00
46.52
50 Back
46.52
374 Jeremy Zhao 46.52 9 BB Min A: 43.09 (+3.43s | 7.4%) Quicksilver Swimming 06/27/2025 Valley Splash
375 Rylan Brill 46.54 9 BB Min A: 43.09 (+3.45s | 7.4%) CAC Stingrays Swim Team 07/25/2025 2025 CO CSI Age Group Championships
376 Thomas Shearer 46.54 10 BB Min A: 43.09 (+3.45s | 7.4%) Sailfish 04/05/2025 2025 ST TXLA 10 U Long Course Kick Off
377 Darren Zhao 46.54 9 BB Min A: 43.09 (+3.45s | 7.4%) Santa Clara Swim Club 06/27/2025 Valley Splash
378 Andrew Knol 46.55 10 BB Min A: 43.09 (+3.46s | 7.4%) Pacific Swim 07/24/2025 2025 SI LC AG CHAMPS
379 Adrian Pascu 46.56 9 BB Min A: 43.09 (+3.47s | 7.5%) Gold\\\\\\'s Aquatics Club (Camas) 07/12/2025 2025 OSI Arena Summer LC 10 U Championships
380 Oliver Morris 46.57 9 BB Min A: 43.09 (+3.48s | 7.5%) Lake Oswego Swim Club 07/12/2025 2025 OSI Arena Summer LC 10 U Championships
381 John Stetson 46.57 10 BB Min A: 43.09 (+3.48s | 7.5%) Bolles School Sharks 07/25/2025 2025 Area 1 LCM Championships
382 James Zanutto 46.57 8 BB Min A: 43.09 (+3.48s | 7.5%) Burlingame Aquatics 05/18/2024 Alto May Cray Invitational
383 Parker Sampson 46.57 10 BB Min A: 43.09 (+3.48s | 7.5%) Denver Swim Academy 06/19/2025 2025 CO ACES Summer Invite
384 Mario Aoki 46.59 9 BB Min A: 43.09 (+3.50s | 7.5%) Falfins Swimming 06/20/2025 2025 Falfins Long Course Open
385 Andrew Szalay 46.63 10 BB Min A: 43.09 (+3.54s | 7.6%) Austin Swim Club 06/27/2025 2025 ST HPAC Long Course STX Championship
386 Owen Nguyen 46.64 9 BB Min A: 43.09 (+3.55s | 7.6%) Mission Viejo Nadadores 06/12/2025 2025 SCS June AG Invite @ La Mirada Armada
387 Adrian Mendoza 46.64 10 BB Min A: 43.09 (+3.55s | 7.6%) Front Range Barracudas 06/21/2024 2024 RST Rushmore Classic Swim Meet
388 Jackson Volpe 46.64 10 BB Min A: 43.09 (+3.55s | 7.6%) Lake Erie Silver Dolphins 07/12/2025 LSSC Avon Classic
389 Hunter Perfect 46.67 10 BB Min A: 43.09 (+3.58s | 7.7%) River Falls Swim Club 07/18/2025 2025 MN STRM Minnesota Regional Championship
390 Ransom Schwartz 46.68 10 BB Min A: 43.09 (+3.59s | 7.7%) Swim Florida 06/21/2025 2025 T2 June Saturday Showcase
391 Liam Reyes 46.70 10 BB Min A: 43.09 (+3.61s | 7.7%) Sparks Piranhas Swim Team 05/23/2025 2025 Intermountain Classic Long Course Meet
392 Jonathan Li 46.73 8 BB Min A: 43.09 (+3.64s | 7.8%) Brea Aquatics 07/23/2025 2025 CA SCS Summer A G Champs
393 Ethan Gaffin 46.73 9 BB Min A: 43.09 (+3.64s | 7.8%) Alamo Area Aquatic Association 05/02/2025 2025 ST 22nd Annual Cinco De Mayo
394 Luke Ready 46.73 10 BB Min A: 43.09 (+3.64s | 7.8%) Kennebec Valley YMCA 07/11/2024 2024 ME 3rd Annual LCM Championships
395 William Toole 46.74 10 BB Min A: 43.09 (+3.65s | 7.8%) Pro Swimming 07/11/2025 2025 PN OCA July Jamboree Invitational
396 Logan Liew 46.76 10 BB Min A: 43.09 (+3.67s | 7.8%) Streamliner Aquatics 07/18/2025 2025 LCM Summer Championships
397 Dean Deliessche 46.76 10 BB Min A: 43.09 (+3.67s | 7.8%) Trident Aquatic Club 08/06/2025 2025 Summer Elite Showcase
398 Daniel Heilman 46.76 10 BB Min A: 43.09 (+3.67s | 7.8%) San Francisco Seals Swim Team 06/07/2025 2025 06 07 CDST LC C B BB+ Meet
399 Luca Fu 46.77 9 BB Min A: 43.09 (+3.68s | 7.9%) Lakeridge Swim Team 07/12/2025 2025 Silver State Championships
400 David Rivera 46.77 10 BB Min A: 43.09 (+3.68s | 7.9%) Almaden Riptide 05/23/2025 Zone 1 South May Firecracker 500

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.