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 | |
|---|---|---|---|---|---|---|---|---|---|
| 3351 | Matthew Ha | 55.39 | 9 | B Min | BB: 49.29 (+6.10s | 11.0%) | Occoquan Swimming | 05/01/2026 | Speedo Spring Splash | |
| 3352 | Alexander Vonberger | 55.39 | 10 | B Min | BB: 49.29 (+6.10s | 11.0%) | Arena Club Aquatics | 05/29/2026 | 2026 FOX Speedo Summer Spectacular Meet | |
| 3353 | Jacob Yong | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | Seattle Metropolitan Aquatic C | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | ||
| 3354 | Peter Mitchell | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | Huntsville Swim Association | 06/26/2026 | 2026 HSA June Invitational | ||
| 3355 | Derek Tang | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | Amherst Tritons Swim Team | 06/20/2026 | 2026 NE NSSC Invitational Springfield College | ||
| 3356 | John MacLean | 55.40 | 8 | B: 55.39 (+0.01s | 0.0%) | Lakeside Swim Team | 05/15/2026 | 2026 Triton Summer Launch | ||
| 3357 | Isaac Welmerink | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | Lakeridge Swim Team | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | ||
| 3358 | Cimon Bunuan | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | South San Francisco Aquatics | 05/02/2026 | Alto Spring Jam CBA | ||
| 3359 | Jack Spaugy | 55.41 | 8 | B: 55.39 (+0.02s | 0.0%) | Multnomah Athletic Club | 05/01/2026 | 2026 THSC Spring Invite | ||
| 3360 | Everett Funk | 55.41 | 8 | B: 55.39 (+0.02s | 0.0%) | Rogue Rapids | 06/26/2026 | 2026 TEAM Summer Invitational | ||
| 3361 | Isaac Pearce | 55.43 | 8 | B: 55.39 (+0.04s | 0.1%) | Aces Swim Club | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | ||
| 3362 | Jason Ma | 55.43 | 10 | B: 55.39 (+0.04s | 0.1%) | Palo Alto Stanford Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | ||
| 3363 | Zeke Mallory | 55.43 | 9 | B: 55.39 (+0.04s | 0.1%) | Alamo Area Aquatic Association | 06/20/2025 | 2025 ST AAAA NS George Block Invite | ||
| 3364 | Gray Phillips | 55.44 | 9 | B: 55.39 (+0.05s | 0.1%) | Black Team | 04/11/2026 | Spring Showdown 2026 | ||
| 3365 | Mohamed Mohamed | 55.44 | 10 | B: 55.39 (+0.05s | 0.1%) | Saint Andrew\\\\\\'s Aquatics | 05/22/2026 | 2026 Terrapin Invite | ||
| 3366 | Enzo Manzi | 55.44 | 9 | B: 55.39 (+0.05s | 0.1%) | Pompano Beach Piranhas | 05/01/2026 | Jesse Vasallo Swimming Invitational | ||
| 3367 | Mark Lazarev | 55.46 | 10 | B: 55.39 (+0.07s | 0.1%) | Swim Fort Lauderdale | 05/15/2026 | 2026 Gulliver LCM Summer Classic | ||
| 3368 | Carter Pyron | 55.46 | 10 | B: 55.39 (+0.07s | 0.1%) | Aquawolves Swimming | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | ||
| 3369 | Benjamin Modglin | 55.47 | 10 | B: 55.39 (+0.08s | 0.1%) | Circle C Select Swim Team | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | ||
| 3370 | Briggs Kelley | 55.47 | 10 | B: 55.39 (+0.08s | 0.1%) | Aquawolves Swimming | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | ||
| 3371 | Hudson Smith | 55.48 | 7 | B: 55.39 (+0.09s | 0.2%) | Gulf Coast Swim Team | 04/17/2026 | 2026 GCST Spring Open | ||
| 3372 | Eric Lourenco | 55.49 | 7 | B: 55.39 (+0.10s | 0.2%) | McCallie-GPS Aquatics | 06/18/2026 | 2026 Tennessee Aquatics June Invitational | ||
| 3373 | Trisztan Makkai-Dutchievici | 55.49 | 8 | B: 55.39 (+0.10s | 0.2%) | Front Range Barracudas | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | ||
| 3374 | Marshall Patton | 55.49 | 8 | B: 55.39 (+0.10s | 0.2%) | Alamo Heights Aquatic Club ? A | 05/15/2026 | 2026 ST NIST Salute To The Troops | ||
| 3375 | Dax Lindsey | 55.50 | 9 | B: 55.39 (+0.11s | 0.2%) | Dart Swimming | 06/21/2024 | Reno Aquatic Club Gamble | ||
| 3376 | Julian Melson | 55.50 | 8 | B: 55.39 (+0.11s | 0.2%) | Fox Swim Club | 04/11/2026 | 2026 Fox April Long Course Invitational | ||
| 3377 | Andrew Chen | 55.51 | 7 | B: 55.39 (+0.12s | 0.2%) | Thunder Coast Aquatics | 06/12/2026 | Neptune Swimming June LC Meet | ||
| 3378 | Asher Ernest | 55.51 | 10 | B: 55.39 (+0.12s | 0.2%) | Four Corners Aquatic Team | 05/29/2026 | 2026 CO Cortez Summer Open | ||
| 3379 | Alex Borz | 55.51 | 10 | B: 55.39 (+0.12s | 0.2%) | Indian River Aquatics | 05/23/2025 | 2025 Dr Aspi Doctor Memorial Invitational | ||
| 3380 | Sam Duran | 55.52 | 10 | B: 55.39 (+0.13s | 0.2%) | Cyclones Swim Team | 06/26/2026 | 2026 Michael Lohberg Invitational | ||
| 3381 | Jackson Sheppard | 55.52 | 9 | B: 55.39 (+0.13s | 0.2%) | Greensboro Community YMCA | 06/12/2026 | 2026 GCY Sprint And Distance | ||
| 3382 | Joseph Wheeler | 55.53 | 10 | B: 55.39 (+0.14s | 0.3%) | Battlefield Area Star Swimmers | 05/02/2026 | BASS Jim Frye Memorial Invitational May 2026 | ||
| 3383 | Lucas Moiso John | 55.53 | 10 | B: 55.39 (+0.14s | 0.3%) | Hydro Swim Club | 06/26/2026 | 2026 SwimRise Season Finale | ||
| 3384 | Gregory Landes | 55.53 | 9 | B: 55.39 (+0.14s | 0.3%) | Bluefish Swim Club | 06/26/2026 | 2026 NE YNS June Prelims Finals Meet | ||
| 3385 | Arthur Viray | 55.53 | 9 | B: 55.39 (+0.14s | 0.3%) | Daly City Dolphins | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | ||
| 3386 | Alexander Mizell | 55.53 | 9 | B: 55.39 (+0.14s | 0.3%) | Huntsville Swim Association | 04/18/2026 | HSA April LC Meet | ||
| 3387 | Alden Bratton | 55.53 | 8 | B: 55.39 (+0.14s | 0.3%) | Hillsborough Aquatic Club | 04/25/2026 | 2026 NCAC Quad Meet | ||
| 3388 | Elliott Poe Brown | 55.55 | 8 | B: 55.39 (+0.16s | 0.3%) | Burlingame Aquatics | 05/02/2026 | Alto Spring Jam CBA | ||
| 3389 | Watson Xie | 55.56 | 10 | B: 55.39 (+0.17s | 0.3%) | Chinook Aquatic Club | 05/29/2025 | 2025 IE VS Apple Capital | ||
| 3390 | Micah Chiu | 55.56 | 8 | B: 55.39 (+0.17s | 0.3%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | ||
| 3391 | Dominick Baldock | 55.56 | 9 | B: 55.39 (+0.17s | 0.3%) | Apex Aquatic Club | 04/11/2026 | 2026 Fox April Long Course Invitational | ||
| 3392 | Amnay Cherik | 55.56 | 8 | B: 55.39 (+0.17s | 0.3%) | Tiger Aquatics | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | ||
| 3393 | Colton McKinnon | 55.57 | 10 | B: 55.39 (+0.18s | 0.3%) | Excel Aquatics | 05/28/2026 | 2026 IE VS Apple Capital | ||
| 3394 | Sam Ventura | 55.57 | 8 | B: 55.39 (+0.18s | 0.3%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | ||
| 3395 | Reed Song | 55.57 | 9 | B: 55.39 (+0.18s | 0.3%) | Columbia Aquatics Association | 06/13/2026 | 2026 CAC Schools Out For Summer LCM Swim Meet | ||
| 3396 | Elijah Weller | 55.57 | 8 | B: 55.39 (+0.18s | 0.3%) | The Western Mass Aquadogs | 05/09/2026 | 2026 NE NSSC Specialty At Springfield College | ||
| 3397 | Max Zhou | 55.58 | 8 | B: 55.39 (+0.19s | 0.3%) | Santa Clara Swim Club | 06/20/2026 | Zone 1 South Swim Under The Stars | ||
| 3398 | Jace Flores | 55.60 | 9 | B: 55.39 (+0.21s | 0.4%) | Waterloo Swimming | 06/06/2026 | 2026 ST ASC June Bug | ||
| 3399 | Vincent Paavola | 55.60 | 8 | B: 55.39 (+0.21s | 0.4%) | SwimMAC Carolina | 05/01/2026 | 2026 NC SwimMAC Spring Splash | ||
| 3400 | James Hall | 55.60 | 9 | B: 55.39 (+0.21s | 0.4%) | Unattached | 06/11/2026 | 2026 RAFC Summer Solstice 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.