Western Zone Zone Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2151 | Cole Smith | 53.35 | 10 | B: 48.29 (+5.06s | 9.5%) | Voltage Aquatics | 07/12/2025 | 2025 Mashed Potato Dash | ||
| 2152 | Dexter Gratton | 53.35 | 10 | B: 48.29 (+5.06s | 9.5%) | SwimTLC-Parker Phenomena Swim | 04/11/2026 | 2026 CO Falfins Summer Series #1 | ||
| 2153 | Rivaansh Shah | 53.36 | 10 | B: 48.29 (+5.07s | 9.5%) | Milpitas Aquatic Club | 11/09/2024 | Alto Go The Distance | ||
| 2154 | Joshua Chun | 53.36 | 10 | B: 48.29 (+5.07s | 9.5%) | Seattle Metropolitan Aquatic C | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | ||
| 2155 | Pi Cheng | 53.37 | 10 | B: 48.29 (+5.08s | 9.5%) | Los Altos Mountain View Aquati | 03/28/2026 | LAMV C B A+ Meet | ||
| 2156 | George Hitraya-Low | 53.37 | 10 | B: 48.29 (+5.08s | 9.5%) | Rancho San Dieguito | 06/07/2025 | 2025 SI JBST Splash Dash Max | ||
| 2157 | Parker Elgin | 53.40 | 9 | B: 48.29 (+5.11s | 9.6%) | Aloha Aquatics Association | 11/09/2025 | OSL A+ SCY Meet | ||
| 2158 | Colin Huang | 53.41 | 10 | B: 48.29 (+5.12s | 9.6%) | Otter Swim Club | 03/28/2026 | LAMV C B A+ Meet | ||
| 2159 | Reid Rector | 53.41 | 8 | B: 48.29 (+5.12s | 9.6%) | Falfins Swimming | 03/14/2026 | 2026 CO Zone 5 Championships | ||
| 2160 | Jeremy Liu | 53.42 | 9 | B: 48.29 (+5.13s | 9.6%) | Cascadia Swimming | 12/12/2025 | 2025 OR TTSC Holiday Invitational Meet | ||
| 2161 | Cohen Gould | 53.43 | 8 | B: 48.29 (+5.14s | 9.6%) | Pikes Peak Athletics | 07/11/2025 | 2025 CO AP Rocky Mountain State Games | ||
| 2162 | Jaxon Smiley | 53.44 | 7 | B: 48.29 (+5.15s | 9.6%) | Spokane Waves Aquatic Team | 11/21/2025 | 2025 Adam England Memorial Fall Splash | ||
| 2163 | Clark York | 53.46 | 10 | B: 48.29 (+5.17s | 9.7%) | Life Time Oregon Swim Team | 01/03/2025 | 2025 CST Shark Chase Invitational | ||
| 2164 | Callum Willis | 53.47 | 9 | B: 48.29 (+5.18s | 9.7%) | Olympic Cascade Aquatics | 01/25/2025 | 2025 PN PDST Winter Invitational | ||
| 2165 | Alexander Zhang | 53.48 | 10 | B: 48.29 (+5.19s | 9.7%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | ||
| 2166 | Yuvaan Vennela | 53.48 | 8 | B: 48.29 (+5.19s | 9.7%) | Storm Aquatics Swim Team | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | ||
| 2167 | Harrison Tanner | 53.48 | 10 | B: 48.29 (+5.19s | 9.7%) | North Coast Aquatics | 11/02/2025 | 2025 SI SEA Rising Stars Series Meet 1 | ||
| 2168 | Ping Yang | 53.49 | 10 | B: 48.29 (+5.20s | 9.7%) | Wave Aquatics | 03/15/2025 | 2025 PN MMSC Marlins Madness | ||
| 2169 | Lucas Chen | 53.49 | 9 | B: 48.29 (+5.20s | 9.7%) | Vacaville Swim Club | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | ||
| 2170 | Asher Winn | 53.50 | 7 | B: 48.29 (+5.21s | 9.7%) | Cali Piranha Swim Team | 02/21/2026 | 2026 SI JBST Age Group Champs Max | ||
| 2171 | Kai Toyama | 53.50 | 10 | B: 48.29 (+5.21s | 9.7%) | Maui Dolphins Swim Club | 01/10/2026 | NEW YEAR S MAGSA SCY Meet | ||
| 2172 | Theodore Storum | 53.51 | 9 | B: 48.29 (+5.22s | 9.8%) | Sebastopol Sea Serpents | 12/06/2025 | FeSSStive FroSSSt CBA+ 2025 | ||
| 2173 | Anthony Raffetto | 53.52 | 10 | B: 48.29 (+5.23s | 9.8%) | Mission Aurora Colorado Swimmi | 01/04/2025 | 2025 CO MACS Winter Invitational | ||
| 2174 | Oliver Sarrow | 53.53 | 5 | B: 48.29 (+5.24s | 9.8%) | Napa Valley Swim Team | 11/15/2025 | NVST Swimming Into Fall 2025 | ||
| 2175 | Harvey Machado | 53.53 | 10 | B: 48.29 (+5.24s | 9.8%) | Valley Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | ||
| 2176 | Cooper Conrad | 53.53 | 10 | B: 48.29 (+5.24s | 9.8%) | Livermore AquaCowboys | 07/26/2025 | Zone 2 Summer Championships | ||
| 2177 | Oscar Frey | 53.54 | 10 | B: 48.29 (+5.25s | 9.8%) | Sawtooth Aquatic Club | 10/11/2025 | 2025 Koudelka Memorial | ||
| 2178 | Van Schuster | 53.54 | 9 | B: 48.29 (+5.25s | 9.8%) | Swim Dogs | 01/03/2026 | 2026 CO MACS Winter Invitationak | ||
| 2179 | Everett Regula | 53.54 | 10 | B: 48.29 (+5.25s | 9.8%) | Aulea Swim Club | 03/07/2026 | 2026 HI Junior Age Group SCY Championship | ||
| 2180 | Samuel Brown | 53.57 | 9 | B: 48.29 (+5.28s | 9.9%) | Seattle Metropolitan Aquatic C | 10/20/2024 | 2024 PN VAST Fall Sprints | ||
| 2181 | Silas Mason | 53.57 | 8 | B: 48.29 (+5.28s | 9.9%) | Cortez Water Dragons | 06/27/2026 | 2026 CO Montrose Marlins Summer Open | ||
| 2182 | Declan Carter | 53.58 | 9 | B: 48.29 (+5.29s | 9.9%) | Palo Alto Stanford Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | ||
| 2183 | Nehemiah Petros | 53.58 | 10 | B: 48.29 (+5.29s | 9.9%) | Legacy Aquatics | 04/25/2026 | LA Spring Kickoff 2026 | ||
| 2184 | Cooper Choury | 53.60 | 10 | B: 48.29 (+5.31s | 9.9%) | SlipStream Aquatics | 02/01/2026 | 2026 CO FORM February Freeze | ||
| 2185 | Ryan Ye | 53.60 | 10 | B: 48.29 (+5.31s | 9.9%) | Walnut Creek Aquabears | 07/26/2025 | Zone 2 Summer Championships | ||
| 2186 | Mattias Portillo | 53.61 | 10 | B: 48.29 (+5.32s | 9.9%) | Utah Valley Aquatics | 09/24/2025 | 2025 UVRays September Intrasquad | ||
| 2187 | Logan Arndt | 53.62 | 8 | B: 48.29 (+5.33s | 9.9%) | Castle Rock Swimming | 02/14/2026 | 2026 CO ACES Winter Open | ||
| 2188 | Ian Strachan | 53.63 | 9 | B: 48.29 (+5.34s | 10.0%) | Issaquah Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | ||
| 2189 | Yao Yang | 53.63 | 8 | B: 48.29 (+5.34s | 10.0%) | DeAnza Cupertino Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | ||
| 2190 | Abraham Damian | 53.63 | 9 | B: 48.29 (+5.34s | 10.0%) | Ukiah Dolphins | 07/11/2026 | Willits Otters Hot Summer Swim | ||
| 2191 | Zachary Zhao | 53.64 | 9 | B: 48.29 (+5.35s | 10.0%) | Seattle Metropolitan Aquatic C | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | ||
| 2192 | Elden Lu | 53.65 | 9 | B: 48.29 (+5.36s | 10.0%) | San Ramon Valley Aquatics | 09/28/2024 | Orinda Aquatics SC C B BB+ Meet | ||
| 2193 | Jacob Beebe | 53.65 | 10 | B: 48.29 (+5.36s | 10.0%) | Hickam Hurricanes | 10/19/2025 | Aulea Fall Frenzy Meet | ||
| 2194 | Gabriel Mas | 53.67 | 9 | B: 48.29 (+5.38s | 10.0%) | Rancho San Dieguito | 05/04/2025 | 2025 SI FAST 14U NTS | ||
| 2195 | Huck Ling | 53.68 | 8 | B: 48.29 (+5.39s | 10.0%) | The Olympic Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | ||
| 2196 | Joshua Steadman | 53.69 | 9 | B: 48.29 (+5.40s | 10.1%) | Kona Dolphins Swim Club | 02/07/2026 | BIG ISLAND SWIMMING @ KCAC | ||
| 2197 | Duke Winiarski | 53.72 | 10 | B: 48.29 (+5.43s | 10.1%) | Aces Swim Club | 12/13/2024 | 2024 CO Falfins Holiday Open | ||
| 2198 | Angus McInnes | 53.72 | 10 | B: 48.29 (+5.43s | 10.1%) | The Dalles Swim Team | 03/08/2025 | 2025 McMinnville Season Finale Invitational | ||
| 2199 | Arton Toloczko | 53.73 | 9 | B: 48.29 (+5.44s | 10.1%) | Lake Oswego Swim Club | 02/06/2026 | 2026 Forest Grove Coast Range Qualifier | ||
| 2200 | Finn Zeilman | 53.74 | 10 | B: 48.29 (+5.45s | 10.1%) | Gunnison Stingrays | 06/13/2025 | 2025 CO Gunnison Invitational | ||
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.