Western Zone Zone Boys 10 & under - 50 M Free
These rankings show the swimmers' placement within their Zone.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 301 | Mateo Tinoco Iraheta | 37.43 | 9 | BB Min | A: 35.69 (+1.74s | 4.6%) | Walla Walla Swim Club | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 302 | Kolten Graver | 37.43 | 10 | BB Min | A: 35.69 (+1.74s | 4.6%) | Life Time Colorado Swim Club | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 303 | Brandon Son | 37.45 | 9 | BB Min | A: 35.69 (+1.76s | 4.7%) | Columbia River Swim Team | 06/05/2026 | 2026 CST Summer Invitational | |
| 304 | Jeremiah Lee | 37.47 | 10 | BB Min | A: 35.69 (+1.78s | 4.8%) | Chinook Aquatic Club | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 305 | Mingke Ding | 37.50 | 10 | BB Min | A: 35.69 (+1.81s | 4.8%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 306 | Jeffrey Crouse | 37.50 | 10 | BB Min | A: 35.69 (+1.81s | 4.8%) | Livermore AquaCowboys | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 307 | Arick Yuan | 37.51 | 10 | BB Min | A: 35.69 (+1.82s | 4.9%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 308 | Easton Fairbank | 37.52 | 8 | BB Min | A: 35.69 (+1.83s | 4.9%) | Flatiron Athletic Club | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 309 | Miles Wang | 37.54 | 9 | BB Min | A: 35.69 (+1.85s | 4.9%) | Pleasanton Seahawks | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 310 | Leo Grace | 37.55 | 8 | BB Min | A: 35.69 (+1.86s | 5.0%) | Unattached | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 311 | Edwin Fernando | 37.56 | 10 | BB Min | A: 35.69 (+1.87s | 5.0%) | Cerritos Aquatic Club | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 312 | Sebastian Alfonso | 37.56 | 10 | BB Min | A: 35.69 (+1.87s | 5.0%) | Walnut Creek Aquabears | 06/27/2026 | NVST Summer Plunge 2026 | |
| 313 | Jose Ramos Morales | 37.57 | 10 | BB Min | A: 35.69 (+1.88s | 5.0%) | Denver Triton Swim Team | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 314 | Mario Aoki | 37.61 | 9 | BB Min | A: 35.69 (+1.92s | 5.1%) | Falfins Swimming | 06/20/2025 | 2025 Falfins Long Course Open | |
| 315 | Eddie Bi | 37.61 | 10 | BB Min | A: 35.69 (+1.92s | 5.1%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 316 | Bennett Arguello | 37.65 | 9 | BB Min | A: 35.69 (+1.96s | 5.2%) | Greenwood Tiger Sharks | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 317 | Dmitrii Kiselev | 37.65 | 8 | BB Min | A: 35.69 (+1.96s | 5.2%) | Royal Swim Team | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 318 | Watson She | 37.65 | 10 | BB Min | A: 35.69 (+1.96s | 5.2%) | Bellevue Club Swim Team | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 319 | Adrian Goo | 37.66 | 10 | BB Min | A: 35.69 (+1.97s | 5.2%) | Walnut Creek Aquabears | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 320 | Ethan Wang | 37.70 | 9 | BB Min | A: 35.69 (+2.01s | 5.3%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 321 | Liam Park | 37.70 | 10 | BB Min | A: 35.69 (+2.01s | 5.3%) | Punahou Aquatics Institute | 07/16/2026 | 2026 HISI LCM Championships | |
| 322 | David Chen | 37.71 | 10 | BB Min | A: 35.69 (+2.02s | 5.4%) | Tualatin Hills Swim Club | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 323 | Oleg Rassadin | 37.72 | 9 | BB Min | A: 35.69 (+2.03s | 5.4%) | Denver Swim Academy | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 324 | Niccolo Pantana | 37.73 | 10 | BB Min | A: 35.69 (+2.04s | 5.4%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 325 | Albert Zhao | 37.74 | 10 | BB Min | A: 35.69 (+2.05s | 5.4%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 326 | Ahaan Maknojia | 37.76 | 10 | BB Min | A: 35.69 (+2.07s | 5.5%) | Issaquah Swim Team | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 327 | Ryan Khalili | 37.77 | 10 | BB Min | A: 35.69 (+2.08s | 5.5%) | Highlands Ranch Aquatics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 328 | Archie McCallum | 37.80 | 8 | BB Min | A: 35.69 (+2.11s | 5.6%) | Poseidon Aquatic Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 329 | Ezekiel Cabanilla | 37.81 | 10 | BB Min | A: 35.69 (+2.12s | 5.6%) | Maui Swim Club | 06/13/2026 | 2026 MAGSA LCM B 2 Meet | |
| 330 | Henry Luevano | 37.81 | 9 | BB Min | A: 35.69 (+2.12s | 5.6%) | Aces Swim Club | 07/10/2026 | 2026 CO ACES DSA Summer Blast | |
| 331 | Julius Voigt | 37.83 | 10 | BB Min | A: 35.69 (+2.14s | 5.7%) | Island Aquatics | 07/03/2026 | 2026 MAGSA LCM LAST CHANCE Copied | |
| 332 | Conrad Shwe | 37.85 | 9 | BB Min | A: 35.69 (+2.16s | 5.7%) | Clovis Swim Club | 07/16/2025 | Renee And Jim Patterson Meet 2025 | |
| 333 | Cash Wellhoefer | 37.86 | 10 | BB Min | A: 35.69 (+2.17s | 5.7%) | Jcc Waves | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 334 | Milo Lanigan | 37.86 | 10 | BB Min | A: 35.69 (+2.17s | 5.7%) | Pikes Peak Athletics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 335 | Calder Brelsford-La Badie | 37.87 | 10 | BB Min | A: 35.69 (+2.18s | 5.8%) | Bainbridge Island Swim Club | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 336 | Ethan Baxter | 37.89 | 10 | BB Min | A: 35.69 (+2.20s | 5.8%) | Island Aquatics | 05/23/2026 | 50th Annual Coach Soichi Sakamoto Invitationa | |
| 337 | Henry Kyles | 37.89 | 10 | BB Min | A: 35.69 (+2.20s | 5.8%) | Bellingham Bay Swim Team | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 338 | Benjamin Barco | 37.91 | 9 | BB Min | A: 35.69 (+2.22s | 5.9%) | Portland Aquatic Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 339 | Rufus Tang | 37.91 | 10 | BB Min | A: 35.69 (+2.22s | 5.9%) | Pacific Dragons Swim Team | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 340 | Ivan Smarshchok | 37.92 | 9 | BB Min | A: 35.69 (+2.23s | 5.9%) | King Aquatic Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 341 | Charles Tan | 37.92 | 10 | BB Min | A: 35.69 (+2.23s | 5.9%) | Eastside Aquatic Swim Team | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 342 | Aiden Huang | 37.92 | 10 | BB Min | A: 35.69 (+2.23s | 5.9%) | DeAnza Cupertino Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 343 | Owen Bronson | 37.93 | 10 | BB Min | A: 35.69 (+2.24s | 5.9%) | Legacy Aquatics | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 344 | Harvey Bollefer | 37.94 | 9 | BB Min | A: 35.69 (+2.25s | 5.9%) | Aces Swim Club | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 345 | Justin Chi | 37.94 | 10 | BB Min | A: 35.69 (+2.25s | 5.9%) | DeAnza Cupertino Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 346 | Vincent Schremer | 37.96 | 9 | BB Min | A: 35.69 (+2.27s | 6.0%) | Life Time Oregon Swim Team | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 347 | Mikail Adlinsyah | 37.99 | 10 | BB Min | A: 35.69 (+2.30s | 6.1%) | Swim Excellence Academy | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 348 | Benjamin Robinson | 38.01 | 10 | BB Min | A: 35.69 (+2.32s | 6.1%) | Neptune Swimming | 06/12/2026 | Neptune Swimming June LC Meet | |
| 349 | Declan Sederholm | 38.06 | 10 | BB Min | A: 35.69 (+2.37s | 6.2%) | Hilltop Aquatic Swim Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 350 | Oliver Song Zhang | 38.07 | 10 | BB Min | A: 35.69 (+2.38s | 6.3%) | West Coast Aquatics | 05/29/2026 | 2026 TRI CITY 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.