Pacific Northwest Swimming Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 201 | William MacDonald | 51.70 | 10 | B Min | BB: 47.69 (+4.01s | 7.8%) | Wave Aquatics | 01/24/2026 | 2026 PN WAVE Winter Invitational Approved | |
| 202 | Calder Pettersen | 51.73 | 9 | B Min | BB: 47.69 (+4.04s | 7.8%) | Cascade Swim Club | 11/16/2025 | 2025 PN CSC Distance Plus Intrasquad | |
| 203 | Dmitry Temkin | 51.74 | 9 | B Min | BB: 47.69 (+4.05s | 7.8%) | West Coast Aquatics | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 204 | Zihan Zhao | 51.77 | 9 | B Min | BB: 47.69 (+4.08s | 7.9%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 205 | William Lawrence | 51.78 | 8 | B Min | BB: 47.69 (+4.09s | 7.9%) | Pro Swimming | 01/23/2026 | 2026 PN Pro January Intrasquad Approved | |
| 206 | August Pittman | 51.79 | 9 | B Min | BB: 47.69 (+4.10s | 7.9%) | Issaquah Swim Team | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 207 | Alexander Stepania | 51.85 | 9 | B Min | BB: 47.69 (+4.16s | 8.0%) | Bellevue Club Swim Team | 11/07/2025 | 2025 THSC November Open | |
| 208 | Cooper Ly | 51.85 | 9 | B Min | BB: 47.69 (+4.16s | 8.0%) | Excel Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 209 | Yusuf Cavcic | 51.85 | 10 | B Min | BB: 47.69 (+4.16s | 8.0%) | Wave Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 210 | Charles Rao | 51.97 | 9 | B Min | BB: 47.69 (+4.28s | 8.2%) | Eastside Aquatic Swim Team | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 211 | Marcus Wang | 52.00 | 10 | B Min | BB: 47.69 (+4.31s | 8.3%) | Pacific Dragons Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 212 | William Chu | 52.03 | 9 | B Min | BB: 47.69 (+4.34s | 8.3%) | Pacific Dragons Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 213 | Ezekiel Tally | 52.03 | 10 | B Min | BB: 47.69 (+4.34s | 8.3%) | Thunderbird Aquatic Club | 05/15/2026 | 2026 PN TAC Spring Thunderbird Approved | |
| 214 | Dale Joyce | 52.04 | 10 | B Min | BB: 47.69 (+4.35s | 8.4%) | Puget Sound Swim Club | 02/27/2026 | 2026 PN February AGI, Div 3 Approved | |
| 215 | Dean Simmons | 52.05 | 10 | B Min | BB: 47.69 (+4.36s | 8.4%) | Seattle Metropolitan Aquatic C | 02/13/2026 | 2026 PN UPAC 4th Annual Feb Fly In Approved | |
| 216 | Jack Kutrovics | 52.07 | 10 | B Min | BB: 47.69 (+4.38s | 8.4%) | YMCA of Snohomish County Barra | 04/18/2026 | 2026 PN MMSC Marlins Madness Approved | |
| 217 | Milo Parrocha-Lambert | 52.09 | 9 | B Min | BB: 47.69 (+4.40s | 8.4%) | Seattle Metropolitan Aquatic C | 05/17/2026 | 2026 PN SMAC May Mini Meet Approved | |
| 218 | Moxon Fain | 52.10 | 10 | B Min | BB: 47.69 (+4.41s | 8.5%) | Seattle Metropolitan Aquatic C | 10/18/2025 | 2025 PN VAST Fall Classic | |
| 219 | Samuel Lopez Silva | 52.13 | 10 | B Min | BB: 47.69 (+4.44s | 8.5%) | Pro Swimming | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 220 | Christopher Chang | 52.23 | 10 | B Min | BB: 47.69 (+4.54s | 8.7%) | Bellingham Bay Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 3 Approved | |
| 221 | Reean Shen | 52.31 | 10 | B Min | BB: 47.69 (+4.62s | 8.8%) | Pro Swimming | 01/23/2026 | 2026 PN Pro January Intrasquad Approved | |
| 222 | Owen Thompson | 52.38 | 9 | B Min | BB: 47.69 (+4.69s | 9.0%) | Mighty Marlins Swim Club | 06/06/2026 | 2026 PN TAC Summer Pentathlon Dist APPROVED | |
| 223 | Lucas Sussman | 52.41 | 10 | B Min | BB: 47.69 (+4.72s | 9.0%) | Cascade Swim Club | 02/01/2026 | 2026 PN CSC February Mini Meet Approved | |
| 224 | John Knudsen | 52.44 | 10 | B Min | BB: 47.69 (+4.75s | 9.1%) | Puget Sound Swim Club | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 225 | Andrii Ivanov | 52.58 | 10 | B Min | BB: 47.69 (+4.89s | 9.3%) | Valley Aquatics | 03/21/2026 | 2026 PN OSTSEAL Kaholo Island ClassicApproved | |
| 226 | Samuel Holloway | 52.61 | 10 | B Min | BB: 47.69 (+4.92s | 9.4%) | Ohana Swim Team | 04/18/2026 | 2026 PN UPAC Mark Olson Classic Approved | |
| 227 | Cooper Dickie | 52.62 | 10 | B Min | BB: 47.69 (+4.93s | 9.4%) | Seattle Metropolitan Aquatic C | 11/16/2025 | 2025 PN PAC Q Meet | |
| 228 | Blake Robinson | 52.62 | 10 | B Min | BB: 47.69 (+4.93s | 9.4%) | Seattle Metropolitan Aquatic C | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 229 | Eason Chen | 52.72 | 7 | B Min | BB: 47.69 (+5.03s | 9.5%) | Pacific Dragons Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 230 | Mason Cotter | 52.74 | 10 | B Min | BB: 47.69 (+5.05s | 9.6%) | Bellingham Bay Swim Team | 05/15/2026 | 2026 PN TAC Spring Thunderbird Approved | |
| 231 | Everett Crawford | 52.74 | 9 | B Min | BB: 47.69 (+5.05s | 9.6%) | Bainbridge Island Swim Club | 04/18/2026 | 2026 PN UPAC Mark Olson Classic Approved | |
| 232 | Jaden Feng | 52.80 | 7 | B Min | BB: 47.69 (+5.11s | 9.7%) | Olympic Cascade Aquatics | 02/27/2026 | 2026 PN Feb Age Group Invite,Div 3 Approved | |
| 233 | Ethan Zhang | 52.85 | 10 | B Min | BB: 47.69 (+5.16s | 9.8%) | Wave Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 234 | Bennett Peiffer | 52.88 | 10 | B Min | BB: 47.69 (+5.19s | 9.8%) | Pacific Piranha Swim Team | 05/16/2026 | 2026 PN PASC Masters And Munchkins Approved | |
| 235 | Colt Rodeheaver | 52.90 | 9 | B Min | BB: 47.69 (+5.21s | 9.8%) | Seattle Metropolitan Aquatic C | 01/25/2025 | 2025 PN SMAC Winter Invitational | |
| 236 | Jeffrey Lou | 52.92 | 9 | B Min | BB: 47.69 (+5.23s | 9.9%) | Seattle Metropolitan Aquatic C | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 237 | Moses Wang | 52.96 | 10 | B Min | BB: 47.69 (+5.27s | 10.0%) | Bainbridge Island Swim Club | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 238 | Ethan Li | 53.04 | 10 | B Min | BB: 47.69 (+5.35s | 10.1%) | Chinook Aquatic Club | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 239 | Ryan Li | 53.07 | 9 | B Min | BB: 47.69 (+5.38s | 10.1%) | Seattle Metropolitan Aquatic C | 06/14/2026 | 2026 SMAC June Mini Meet Approved | |
| 240 | Cosmo McGrath | 53.09 | 10 | B Min | BB: 47.69 (+5.40s | 10.2%) | Bellingham Bay Swim Team | 01/24/2026 | 2026 PN BBST Aly Fell Memorial Approved | |
| 241 | Senran Boldiga | 53.14 | 9 | B Min | BB: 47.69 (+5.45s | 10.3%) | Chinook Aquatic Club | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 242 | Lincoln Zhang | 53.18 | 10 | B Min | BB: 47.69 (+5.49s | 10.3%) | Pro Swimming | 03/06/2026 | 2026 PN PRO March Last Chance Intra Apprived | |
| 243 | Nathaniel Chiang | 53.31 | 10 | B Min | BB: 47.69 (+5.62s | 10.5%) | Issaquah Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 244 | Gavin Tong | 53.42 | 7 | B: 53.39 (+0.03s | 0.1%) | Blue Dolphin Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | ||
| 245 | Charles Thomas | 53.44 | 9 | B: 53.39 (+0.05s | 0.1%) | Excel Aquatics | 12/13/2025 | 2025 Ho Ho Ho Holiday 12 Under Meet | ||
| 246 | Everett Adkins | 53.50 | 10 | B: 53.39 (+0.11s | 0.2%) | Excel Aquatics | 11/07/2025 | TNAQ 2025 FALL INVITATIONAL | ||
| 247 | Graham Wang | 53.51 | 10 | B: 53.39 (+0.12s | 0.2%) | Eastside Aquatic Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | ||
| 248 | Kai Chen | 53.60 | 9 | B: 53.39 (+0.21s | 0.4%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | ||
| 249 | Henry Menzies | 53.60 | 10 | B: 53.39 (+0.21s | 0.4%) | Mighty Marlins Swim Club | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | ||
| 250 | Derek Zhu | 53.61 | 9 | B: 53.39 (+0.22s | 0.4%) | Chinook Aquatic Club | 11/09/2025 | 2025 PN C Pentathlon | ||
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.