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 | 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 | |
| 3 | 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 | |
| 4 | 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 | |
| 5 | 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 | |
| 6 | 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 | |
| 7 | 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 | |
| 8 | 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 | |
| 9 | 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 | |
| 10 | 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 | |
| 11 | 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 | |
| 12 | 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 | |
| 13 | 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 | |
| 14 | 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 | |
| 15 | 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 | |
| 16 | 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 | |
| 17 | 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 | |
| 18 | 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 | |
| 19 | 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 | |
| 20 | 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 | |
| 21 | 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 | |
| 22 | 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 | |
| 23 | 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 | |
| 24 | 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 | |
| 25 | Miles Kavanaugh | 46.02 | 9 | BB Min | A: 43.09 (+2.93s | 6.4%) | University Place Aquatic Club | 06/20/2025 | 2025 IE VS Starlight Open | |
| 26 | Landon Wang | 46.28 | 9 | BB Min | A: 43.09 (+3.19s | 6.9%) | Seattle Metropolitan Aquatic C | 05/29/2025 | 2025 IE VS Apple Capital | |
| 27 | Raihan Echevarria | 46.37 | 10 | B: 44.49 (+1.88s | 4.1%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | ||
| 28 | Boxuan Yu | 46.48 | 10 | BB Min | A: 43.09 (+3.39s | 7.3%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 29 | Sebastian Uy | 46.63 | 10 | BB Min | A: 43.09 (+3.54s | 7.6%) | King Aquatic Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 30 | William Toole | 46.74 | 10 | BB Min | A: 43.09 (+3.65s | 7.8%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 31 | Peter Brandt | 46.78 | 10 | BB Min | A: 43.09 (+3.69s | 7.9%) | Issaquah Swim Team | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 32 | Calder Brelsford-La Badie | 46.86 | 8 | BB Min | A: 43.09 (+3.77s | 8.0%) | Bainbridge Island Swim Club | 05/02/2025 | 2025 PN BC May Flowers | |
| 33 | Emerson Vivion | 46.98 | 10 | BB Min | A: 43.09 (+3.89s | 8.3%) | Olympic Cascade Aquatics | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 34 | Jay Kowren | 47.02 | 9 | BB Min | A: 43.09 (+3.93s | 8.4%) | Bainbridge Island Swim Club | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 35 | Saien Wu | 47.12 | 9 | BB Min | A: 43.09 (+4.03s | 8.6%) | Bellevue Club Swim Team | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 36 | Qifan Gong | 47.19 | 8 | BB Min | A: 43.09 (+4.10s | 8.7%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 37 | Brooks Switaj | 47.32 | 8 | BB Min | A: 43.09 (+4.23s | 8.9%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 38 | Jayden Huang | 47.53 | 9 | BB Min | A: 43.09 (+4.44s | 9.3%) | Harbor Aquatics Club | 05/02/2025 | 2025 PN BC May Flowers | |
| 39 | Mason Sovich | 47.55 | 8 | BB Min | A: 43.09 (+4.46s | 9.4%) | Olympic Cascade Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 40 | Young Sun | 47.62 | 8 | BB Min | A: 43.09 (+4.53s | 9.5%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 41 | Alexander Stepania | 47.62 | 8 | BB Min | A: 43.09 (+4.53s | 9.5%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 42 | Vincent Nan | 47.65 | 9 | BB Min | A: 43.09 (+4.56s | 9.6%) | Pacific Dragons Swim Team | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 43 | Lok Zhang | 47.67 | 9 | BB Min | A: 43.09 (+4.58s | 9.6%) | Pacific Dragons Swim Team | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 44 | Wesley Wei | 47.72 | 9 | BB Min | A: 43.09 (+4.63s | 9.7%) | Seattle Metropolitan Aquatic C | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 45 | Jonathan Lan | 47.76 | 10 | BB Min | A: 43.09 (+4.67s | 9.8%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 46 | Greyson Eatherly | 47.77 | 9 | BB Min | A: 43.09 (+4.68s | 9.8%) | Cascade Swim Club | 09/20/2025 | 2025 PN CSC September Shakeout | |
| 47 | Leon Ye | 47.99 | 9 | BB Min | A: 43.09 (+4.90s | 10.2%) | Issaquah Swim Team | 06/14/2025 | 2025 IST June Invtational | |
| 48 | Austin Mitchell | 48.00 | 9 | BB Min | A: 43.09 (+4.91s | 10.2%) | Valley Aquatics | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 49 | Archie McCallum | 48.03 | 6 | BB Min | A: 43.09 (+4.94s | 10.3%) | Poseidon Aquatic Club | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 50 | Oliver Song Zhang | 48.13 | 9 | BB Min | A: 43.09 (+5.04s | 10.5%) | Stingray Swim Team | 04/25/2025 | 2025 PN KING Spring Derby | |
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.