Western Zone Zone Boys 10 & under - 50 M Back
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 | Russell Choy | 38.34 | 10 | AAA Min | AAAA: 36.99 (+1.35s | 3.5%) | Aquazot Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 52 | Mason Nguyen | 38.34 | 10 | AAA Min | AAAA: 36.99 (+1.35s | 3.5%) | Aquazot Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 53 | Aurelius Lien | 38.53 | 9 | AAA Min | AAAA: 36.99 (+1.54s | 4.0%) | Santa Clara Swim Club | 07/30/2026 | Long Course Far Westerns | |
| 54 | Caleb Stone | 38.55 | 10 | AAA Min | AAAA: 36.99 (+1.56s | 4.0%) | Bellingham Bay Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 55 | Chase Witt | 38.56 | 10 | AAA Min | AAAA: 36.99 (+1.57s | 4.1%) | Gold\\\\\\'s Aquatics Club (Camas) | 04/25/2026 | GACC Spring Invitational | |
| 56 | Owen Newton | 38.70 | 10 | AAA Min | AAAA: 36.99 (+1.71s | 4.4%) | SwimNation Aquatics Programs | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 57 | Aiden Chung | 38.75 | 10 | AAA Min | AAAA: 36.99 (+1.76s | 4.5%) | Patriot Swim Club | 07/30/2026 | Long Course Far Westerns | |
| 58 | Kai Hawkes | 38.75 | 10 | AAA Min | AAAA: 36.99 (+1.76s | 4.5%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 59 | Branimir Petkov | 38.82 | 10 | AAA Min | AAAA: 36.99 (+1.83s | 4.7%) | Evolution Racing Club | 06/11/2026 | 2026 SCS June AG Invite | |
| 60 | Dongxin Xian | 38.83 | 10 | AAA Min | AAAA: 36.99 (+1.84s | 4.7%) | Arcadia Riptides Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 61 | Yuning Huang | 38.87 | 10 | AAA Min | AAAA: 36.99 (+1.88s | 4.8%) | Rose Bowl Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 62 | Tatsumasa Sekine | 38.87 | 9 | AAA Min | AAAA: 36.99 (+1.88s | 4.8%) | Santa Clara Swim Club | 07/30/2026 | Long Course Far Westerns | |
| 63 | Paxton Marvray | 38.89 | 10 | AAA Min | AAAA: 36.99 (+1.90s | 4.9%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 64 | Leon Escarcega Hernandez | 38.90 | 10 | AAA Min | AAAA: 36.99 (+1.91s | 4.9%) | Halcones Marinos Capn | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 65 | Brayden Nguyen | 38.95 | 10 | AAA Min | AAAA: 36.99 (+1.96s | 5.0%) | San Jose Goosemonkeys | 07/30/2026 | Long Course Far Westerns | |
| 66 | Jerry Ji | 38.98 | 10 | AAA Min | AAAA: 36.99 (+1.99s | 5.1%) | Brea Aquatics | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 67 | Wyatt Larson | 38.99 | 10 | AAA Min | AAAA: 36.99 (+2.00s | 5.1%) | Denver Swim Academy | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 68 | Luke Ford | 39.06 | 10 | AA Min | AAA: 38.99 (+0.07s | 0.2%) | The Claremont Club | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 69 | Jacob Liu | 39.09 | 10 | AA Min | AAA: 38.99 (+0.10s | 0.3%) | Aquazot Swim Club | 07/16/2026 | 2026 SCS ELITE Age Group LCM Championship | |
| 70 | Qifan Gong | 39.13 | 9 | AA Min | AAA: 38.99 (+0.14s | 0.4%) | Bellevue Club Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 71 | Yixuan Zhu | 39.24 | 10 | AA Min | AAA: 38.99 (+0.25s | 0.6%) | Pleasanton Seahawks | 07/30/2026 | Long Course Far Westerns | |
| 72 | Elliott Lindley | 39.28 | 10 | AA Min | AAA: 38.99 (+0.29s | 0.7%) | Los Altos Mountain View Aquati | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 73 | Jensen Huang | 39.30 | 10 | AA Min | AAA: 38.99 (+0.31s | 0.8%) | Arcadia Riptides Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 74 | Preston Kerchusky | 39.31 | 10 | AA Min | AAA: 38.99 (+0.32s | 0.8%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 75 | Maxwell Dean | 39.31 | 10 | AA Min | AAA: 38.99 (+0.32s | 0.8%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 76 | Kai Kennedy | 39.33 | 10 | BB Min | A: 37.69 (+1.64s | 4.2%) | Academy Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 77 | Shaler Berry | 39.38 | 10 | AA Min | AAA: 38.99 (+0.39s | 1.0%) | San Diego Imperial All Star TM | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 78 | Marcus Lin | 39.39 | 9 | AA Min | AAA: 38.99 (+0.40s | 1.0%) | Aquazot Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 79 | Wesley Ho | 39.48 | 10 | AA Min | AAA: 38.99 (+0.49s | 1.2%) | Aspire Aquatics of Colorado | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 80 | Matthew Winn | 39.48 | 9 | AA Min | AAA: 38.99 (+0.49s | 1.2%) | Stingray Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 81 | Louis Yu | 39.49 | 8 | AA Min | AAA: 38.99 (+0.50s | 1.3%) | Santa Clara Swim Club | 07/30/2026 | Long Course Far Westerns | |
| 82 | Alex Joy | 39.51 | 10 | AA Min | AAA: 38.99 (+0.52s | 1.3%) | Los Altos Mountain View Aquati | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 83 | Riccardo Sardena | 39.53 | 10 | AA Min | AAA: 38.99 (+0.54s | 1.4%) | Swim Team of Placentia | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 84 | Aleksandr Rybin | 39.54 | 10 | AA Min | AAA: 38.99 (+0.55s | 1.4%) | King Aquatic Club | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 85 | Roddy Yang | 39.69 | 10 | AA Min | AAA: 38.99 (+0.70s | 1.8%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 86 | Cameron Boitano | 39.70 | 10 | AA Min | AAA: 38.99 (+0.71s | 1.8%) | Pleasanton Seahawks | 07/30/2026 | Long Course Far Westerns | |
| 87 | Orion Blue-Smith | 39.70 | 10 | AA Min | AAA: 38.99 (+0.71s | 1.8%) | Palo Alto Stanford Aquatics | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 88 | Castle Cline | 39.72 | 10 | AA Min | AAA: 38.99 (+0.73s | 1.8%) | Seattle Metropolitan Aquatic C | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 89 | Ray Yu | 39.73 | 10 | AA Min | AAA: 38.99 (+0.74s | 1.9%) | Aquazot Swim Club | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 90 | Ashton Chen | 39.80 | 10 | BB Min | A: 37.69 (+2.11s | 5.3%) | Brea Aquatics | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 91 | Kallen Joyce | 39.84 | 9 | AA Min | AAA: 38.99 (+0.85s | 2.1%) | Kamehameha Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 92 | Graeme Gorsche | 39.96 | 10 | AA Min | AAA: 38.99 (+0.97s | 2.4%) | Los Angeles Swim Club | 06/11/2026 | 2026 SCS June AG Invite | |
| 93 | Jaden Shin | 39.96 | 10 | AA Min | AAA: 38.99 (+0.97s | 2.4%) | Stingray Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 94 | Arthur Shackelton | 39.97 | 10 | AA Min | AAA: 38.99 (+0.98s | 2.5%) | Lakeridge Swim Team | 06/19/2026 | Reno Aquatic Club Gamble | |
| 95 | Charlie Wheeler | 39.98 | 10 | AA Min | AAA: 38.99 (+0.99s | 2.5%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 96 | Rowan Sargent | 40.04 | 9 | AA Min | AAA: 38.99 (+1.05s | 2.6%) | Flatiron Athletic Club | 06/12/2026 | 2026 CO CSI Long Course Open | |
| 97 | Sylas York | 40.05 | 10 | AA Min | AAA: 38.99 (+1.06s | 2.6%) | San Clemente Aquatic Team | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 98 | Axel Wortman | 40.06 | 10 | AA Min | AAA: 38.99 (+1.07s | 2.7%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 99 | Theodore Neese | 40.15 | 10 | AA Min | AAA: 38.99 (+1.16s | 2.9%) | Bend Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 100 | Eliott Jackson | 40.22 | 10 | AA Min | AAA: 38.99 (+1.23s | 3.1%) | Team Eugene Aquatics | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
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.