Western Zone Zone Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 51 | Ethan Wang | 39.76 | 9 | AA Min | AAA: 38.29 (+1.47s | 3.7%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 52 | Calvin Larkin | 39.81 | 9 | AA Min | AAA: 38.29 (+1.52s | 3.8%) | Bend Swim Club | 08/07/2026 | Bend Swim Club August Invitational | |
| 53 | Jensen Huang | 39.95 | 10 | AA Min | AAA: 38.29 (+1.66s | 4.2%) | Arcadia Riptides Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 54 | Liam Reyes | 39.95 | 10 | AA Min | AAA: 38.29 (+1.66s | 4.2%) | Reno Aquatic Club | 07/31/2026 | 2026 High Country Short Course Championship | |
| 55 | Jonathan Li | 40.06 | 8 | AA Min | AAA: 38.29 (+1.77s | 4.4%) | Brea Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 56 | Kyle Tang | 40.08 | 9 | AA Min | AAA: 38.29 (+1.79s | 4.5%) | Aquazot Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 57 | Mateo Cromeyer | 40.08 | 10 | AA Min | AAA: 38.29 (+1.79s | 4.5%) | Piranhas Aquatic Club | 10/03/2026 | Neptune Swimming Fall Classic | |
| 58 | Lok Zhang | 40.08 | 10 | AA Min | AAA: 38.29 (+1.79s | 4.5%) | Bellevue Club Swim Team | 10/03/2026 | 2026 PN CSC Fall Classic Invitational Approve | |
| 59 | Jack Armbruster | 40.13 | 10 | AA Min | AAA: 38.29 (+1.84s | 4.6%) | San Clemente Aquatic Team | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 60 | Daniel Heilman | 40.16 | 10 | AA Min | AAA: 38.29 (+1.87s | 4.7%) | San Francisco Seals Swim Team | 10/09/2026 | VJO S Sprint For The Golden Ticket 2026 C | |
| 61 | Ahaan Iragavarapu | 40.23 | 10 | A Min | AA: 40.19 (+0.04s | 0.1%) | Pro Swimming | 12/12/2025 | 2025 PN 14 Under Short Course Champs Approved | |
| 62 | Jason Yin | 40.24 | 9 | A Min | AA: 40.19 (+0.05s | 0.1%) | Quicksilver Swimming | 03/20/2026 | SCY Spring Age Group Championships | |
| 63 | Everett Muzzarelli | 40.33 | 8 | A Min | AA: 40.19 (+0.14s | 0.3%) | Woodbridge Swim Team | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 64 | Ashwin Tiwari | 40.33 | 9 | A Min | AA: 40.19 (+0.14s | 0.3%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 65 | Taeyul Heo | 40.34 | 10 | A Min | AA: 40.19 (+0.15s | 0.4%) | Pleasanton Seahawks | 10/10/2026 | SRVA SC C B BB+ Meet | |
| 66 | Adelynn Spurlin | 40.40 | 10 | A Min | AA: 40.19 (+0.21s | 0.5%) | North Jeffco Swim Team | 10/16/2026 | 2026 CO MACS Fall Invitational | |
| 67 | Ryan Xie | 40.41 | 10 | A Min | AA: 40.19 (+0.22s | 0.5%) | Cascadia Swimming | 09/26/2026 | FGSC 2026 Season Opener Pentathlon | |
| 68 | Dylan Tian | 40.45 | 9 | A Min | AA: 40.19 (+0.26s | 0.6%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 69 | Flynn Chen | 40.48 | 10 | A Min | AA: 40.19 (+0.29s | 0.7%) | DeAnza Cupertino Aquatics | 10/03/2026 | 2026 De Anza Cupertino Aquatics SC CBA Meet | |
| 70 | Louis Yu | 40.49 | 9 | A Min | AA: 40.19 (+0.30s | 0.7%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 71 | Oliver Panofsky | 40.54 | 9 | A Min | AA: 40.19 (+0.35s | 0.9%) | Slo Swim Club Seahawks | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 72 | Kai Thomas | 40.54 | 10 | A Min | AA: 40.19 (+0.35s | 0.9%) | Renegade Aquatics | 07/10/2026 | 2026 SI JBST All Ages Last Chance Meet | |
| 73 | Lucas Jiang | 40.70 | 10 | A Min | AA: 40.19 (+0.51s | 1.3%) | Santa Clara Swim Club | 03/20/2026 | SCY Spring Age Group Championships | |
| 74 | Luke Chai | 40.71 | 10 | A Min | AA: 40.19 (+0.52s | 1.3%) | Pleasanton Seahawks | 10/10/2026 | SRVA SC C B BB+ Meet | |
| 75 | Orion Blue-Smith | 40.72 | 10 | A Min | AA: 40.19 (+0.53s | 1.3%) | Palo Alto Stanford Aquatics | 10/03/2026 | PASA CBA+ SCY Meet Oct 2026 | |
| 76 | Yuning Huang | 40.73 | 10 | A Min | AA: 40.19 (+0.54s | 1.3%) | Rose Bowl Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 77 | Owen Newton | 40.73 | 10 | A Min | AA: 40.19 (+0.54s | 1.3%) | SwimNation Aquatics Programs | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 78 | Ian Susanto | 40.76 | 10 | A Min | AA: 40.19 (+0.57s | 1.4%) | Legacy Aquatics | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 79 | Jeremy Zhao | 40.84 | 9 | A Min | AA: 40.19 (+0.65s | 1.6%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 80 | Marco Gonzalez | 40.89 | 10 | A Min | AA: 40.19 (+0.70s | 1.7%) | South Bay Aquatics | 10/03/2026 | 2026 SI CAST Pentathlon October 3 | |
| 81 | Shaler Berry | 40.90 | 10 | A Min | AA: 40.19 (+0.71s | 1.7%) | Pacific Swim | 10/17/2026 | 2026 SI SBA All Ages NTS Meet | |
| 82 | Elliott Ganancial | 40.91 | 10 | A Min | AA: 40.19 (+0.72s | 1.8%) | Hawaii Swimming Club | 09/05/2026 | OSL A+ Sprint Pentathlon Copied | |
| 83 | Eliott Jackson | 40.92 | 10 | A Min | AA: 40.19 (+0.73s | 1.8%) | Team Eugene Aquatics | 03/14/2026 | 2026 TEAM Shootout | |
| 84 | Elijah Hutagalung | 41.08 | 10 | A Min | AA: 40.19 (+0.89s | 2.2%) | Aspire Aquatics of Colorado | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 85 | Ryan Ferguson | 41.10 | 10 | A Min | AA: 40.19 (+0.91s | 2.2%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 86 | Vinh Bui | 41.13 | 10 | A Min | AA: 40.19 (+0.94s | 2.3%) | Excel Aquatics | 09/25/2026 | 2026 Excel Aquatics Fall Fest Invite | |
| 87 | Thomas Halford | 41.14 | 10 | A Min | AA: 40.19 (+0.95s | 2.3%) | Pikes Peak Athletics | 09/18/2026 | 2026 CO PPA September Kick Off | |
| 88 | Walker Lewis | 41.15 | 10 | A Min | AA: 40.19 (+0.96s | 2.3%) | Excel Aquatics | 09/25/2026 | 2026 Excel Aquatics Fall Fest Invite | |
| 89 | Hongjie Xiao | 41.19 | 9 | A Min | AA: 40.19 (+1.00s | 2.4%) | Irvine Novaquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 90 | Phinnaeus Johnson | 41.21 | 10 | A Min | AA: 40.19 (+1.02s | 2.5%) | South Valley Makos | 07/24/2026 | CVAL 2026 | |
| 91 | Matvey Fadeev | 41.25 | 10 | A Min | AA: 40.19 (+1.06s | 2.6%) | Issaquah Swim Team | 11/15/2025 | 2025 PN IST November Invitational | |
| 92 | Jayden Guo | 41.28 | 10 | A Min | AA: 40.19 (+1.09s | 2.6%) | Life Time Northern California | 10/17/2026 | Pumpkin Meet, Oct 2026 | |
| 93 | Bennett Arguello | 41.29 | 9 | A Min | AA: 40.19 (+1.10s | 2.7%) | Greenwood Tiger Sharks | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 94 | Aiden Huang | 41.34 | 10 | A Min | AA: 40.19 (+1.15s | 2.8%) | DeAnza Cupertino Aquatics | 10/24/2026 | PSL Pumpkin Spice Splash | |
| 95 | Ludwik Pawelski | 41.38 | 9 | A Min | AA: 40.19 (+1.19s | 2.9%) | Sparks Piranhas Swim Team | 10/16/2026 | 2026 KING OF THE HILL CHALLENGE | |
| 96 | Alexander Warren Moy | 41.39 | 10 | A Min | AA: 40.19 (+1.20s | 2.9%) | Palo Alto Stanford Aquatics | 10/24/2026 | SUNN Fall Classic 2026 | |
| 97 | Tatsumasa Sekine | 41.43 | 9 | A Min | AA: 40.19 (+1.24s | 3.0%) | Santa Clara Swim Club | 09/19/2026 | 2026 Milpitas Aquatic Club Season Kick Off | |
| 98 | Peter Hofman | 41.44 | 10 | A Min | AA: 40.19 (+1.25s | 3.0%) | Cascade Swim Club | 10/03/2026 | 2026 PN CSC Fall Classic Invitational Approve | |
| 99 | Eric Zeng | 41.46 | 9 | A Min | AA: 40.19 (+1.27s | 3.1%) | Canyons Aquatic Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 100 | Koa Maday | 41.46 | 10 | A Min | AA: 40.19 (+1.27s | 3.1%) | Kona Aquatics Club | 09/12/2026 | BIG ISLAND SWIMMING @ KCAC | |
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.