Pacific Northwest Swimming Boys 10 & under - 50 M Back
These rankings show the swimmers' placement within their Local Swimming Committee (LSC).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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Oliver Bao | 17.92 | 9 | AAAA Min | Seattle Metropolitan Aquatic C | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | ||
| 2 | Hanping Wang | 37.36 | 10 | AAA Min | AAAA: 36.99 (+0.37s | 1.0%) | Wave Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 3 | David Goldenberg | 38.29 | 9 | AAA Min | AAAA: 36.99 (+1.30s | 3.4%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 4 | Feifan Gong | 38.79 | 10 | AAA Min | AAAA: 36.99 (+1.80s | 4.6%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 5 | Spencer Slowik | 39.31 | 10 | AA Min | AAA: 38.99 (+0.32s | 0.8%) | Bainbridge Island Swim Club | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 6 | Matvey Fadeev | 39.73 | 9 | AA Min | AAA: 38.99 (+0.74s | 1.9%) | Issaquah Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 7 | Fedor Ryndin | 39.77 | 10 | AA Min | AAA: 38.99 (+0.78s | 2.0%) | Bellevue Club Swim Team | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 8 | Aiden Dong | 39.84 | 10 | AA Min | AAA: 38.99 (+0.85s | 2.1%) | Pacific Dragons Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 9 | Harrison Millard | 39.99 | 10 | AA Min | AAA: 38.99 (+1.00s | 2.5%) | Bellingham Bay Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 10 | Allen Chen | 40.18 | 9 | AA Min | AAA: 38.99 (+1.19s | 3.0%) | Seattle Metropolitan Aquatic C | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 11 | Kamran Clapp | 40.22 | 10 | AA Min | AAA: 38.99 (+1.23s | 3.1%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 12 | Andrew Lin | 40.43 | 10 | AA Min | AAA: 38.99 (+1.44s | 3.6%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 13 | Colin Brown | 40.66 | 10 | AA Min | AAA: 38.99 (+1.67s | 4.1%) | Issaquah Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 14 | Derek Xu | 40.71 | 10 | AA Min | AAA: 38.99 (+1.72s | 4.2%) | Pacific Dragons Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 15 | Alex Deng | 41.12 | 10 | A Min | AA: 41.09 (+0.03s | 0.1%) | Issaquah Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 16 | Leonardo DeSimone | 41.29 | 10 | A Min | AA: 41.09 (+0.20s | 0.5%) | Valley Aquatics | 05/02/2025 | 2025 PN BC May Flowers | |
| 17 | George Morrison | 41.45 | 10 | A Min | AA: 41.09 (+0.36s | 0.9%) | West Coast Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 18 | Ryley Robinson | 41.54 | 10 | A Min | AA: 41.09 (+0.45s | 1.1%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 19 | Liam Houchin | 42.20 | 10 | A Min | AA: 41.09 (+1.11s | 2.6%) | Issaquah Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 20 | William Wang | 42.26 | 10 | A Min | AA: 41.09 (+1.17s | 2.8%) | Pacific Dragons Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 21 | Kenshin Yokoyama | 42.45 | 10 | A Min | AA: 41.09 (+1.36s | 3.2%) | Wave Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 22 | Castle Cline | 42.83 | 9 | A Min | AA: 41.09 (+1.74s | 4.1%) | Seattle Metropolitan Aquatic C | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 23 | Hao-En Wu | 42.86 | 10 | A Min | AA: 41.09 (+1.77s | 4.1%) | Pro Swimming | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 24 | Brennan Garr | 42.88 | 10 | A Min | AA: 41.09 (+1.79s | 4.2%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 25 | Nikoloz Zhorzholiani | 43.01 | 8 | A Min | AA: 41.09 (+1.92s | 4.5%) | Seattle Metropolitan Aquatic C | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 26 | Carter Hurl | 43.12 | 10 | BB Min | A: 43.09 (+0.03s | 0.1%) | Olympic Cascade Aquatics | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 27 | Grady Sontra | 43.39 | 10 | BB Min | A: 43.09 (+0.30s | 0.7%) | Cascade Swim Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 28 | William Winn | 43.65 | 10 | BB Min | A: 43.09 (+0.56s | 1.3%) | South Snohomish Co Dolphins | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 29 | Haoran Cong | 43.73 | 10 | BB Min | A: 43.09 (+0.64s | 1.5%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 30 | Matthew Winn | 43.87 | 8 | BB Min | A: 43.09 (+0.78s | 1.8%) | South Snohomish Co Dolphins | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 31 | Jayden Liu | 44.03 | 9 | BB Min | A: 43.09 (+0.94s | 2.1%) | Pacific Dragons Swim Team | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 32 | Hugo Linowski | 44.08 | 9 | BB Min | A: 43.09 (+0.99s | 2.2%) | Olympic Cascade Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 33 | Brandon Bai | 44.09 | 10 | BB Min | A: 43.09 (+1.00s | 2.3%) | Bellevue Club Swim Team | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 34 | Ziwen Luo | 44.12 | 9 | BB Min | A: 43.09 (+1.03s | 2.3%) | West Coast Aquatics | 04/27/2024 | 2024 PN SSCD Dick LaFave Classic [RESULTS] | |
| 35 | Abram Browning | 44.21 | 10 | BB Min | A: 43.09 (+1.12s | 2.5%) | Puget Sound Swim Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 36 | Caleb Stone | 44.24 | 9 | BB Min | A: 43.09 (+1.15s | 2.6%) | Bellingham Bay Swim Team | 04/25/2025 | 2025 PN KING Spring Derby | |
| 37 | Ollie Hale | 44.27 | 10 | BB Min | A: 43.09 (+1.18s | 2.7%) | Excel Swim Club | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 38 | Cody Sun | 44.50 | 10 | BB Min | A: 43.09 (+1.41s | 3.2%) | Olympic Cascade Aquatics | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 39 | Andrew Liu | 44.51 | 9 | BB Min | A: 43.09 (+1.42s | 3.2%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 40 | William Bao | 44.57 | 10 | BB Min | A: 43.09 (+1.48s | 3.3%) | Issaquah Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 41 | Yanbo LI | 44.69 | 8 | BB Min | A: 43.09 (+1.60s | 3.6%) | Seattle Metropolitan Aquatic C | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 42 | Ashwin Tiwari | 44.76 | 8 | BB Min | A: 43.09 (+1.67s | 3.7%) | Olympic Cascade Aquatics | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 43 | Tyler Zhang | 44.86 | 10 | BB Min | A: 43.09 (+1.77s | 3.9%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 44 | Ray Liu | 44.89 | 10 | BB Min | A: 43.09 (+1.80s | 4.0%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 45 | Guo-Shiun Gau | 44.96 | 9 | BB Min | A: 43.09 (+1.87s | 4.2%) | King Aquatic Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 46 | Jercey Zhao | 44.99 | 9 | BB Min | A: 43.09 (+1.90s | 4.2%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 47 | Aleksandr Rybin | 45.25 | 9 | BB Min | A: 43.09 (+2.16s | 4.8%) | King Aquatic Club | 04/25/2025 | 2025 PN KING Spring Derby | |
| 48 | Nolan Gu | 45.28 | 10 | BB Min | A: 43.09 (+2.19s | 4.8%) | Wave Aquatics | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 49 | Jensen Chamberlin | 45.32 | 10 | BB Min | A: 43.09 (+2.23s | 4.9%) | THUNDERBIRD AQUATIC CLUB | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 50 | Summit Boren | 45.35 | 10 | BB Min | A: 43.09 (+2.26s | 5.0%) | Storm Aquatics | 05/29/2025 | 2025 IE VS Apple Capital | |
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.