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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1201 | Liam Chen | 55.05 | 9 | B Min | BB: 49.29 (+5.76s | 10.5%) | San Ramon Valley Aquatics | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 1202 | Hugo Situ | 55.07 | 9 | B Min | BB: 49.29 (+5.78s | 10.5%) | Daly City Dolphins | 06/06/2025 | BAC C B A Meet | |
| 1203 | Lehai Li | 55.08 | 10 | B Min | BB: 49.29 (+5.79s | 10.5%) | Alto Swim Club | 04/27/2024 | Alto Spring Jam | |
| 1204 | Henry Choi | 55.08 | 9 | B Min | BB: 49.29 (+5.79s | 10.5%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 1205 | Huck Foster | 55.12 | 8 | B Min | BB: 49.29 (+5.83s | 10.6%) | Velocity Swimming | 05/28/2026 | 2026 IE VS Apple Capital | |
| 1206 | Felix Cera | 55.14 | 10 | B Min | BB: 49.29 (+5.85s | 10.6%) | Olympic Cascade Aquatics | 05/29/2026 | 2026 TRI CITY INVITATIONAL | |
| 1207 | Colt Melton | 55.15 | 7 | B Min | BB: 49.29 (+5.86s | 10.6%) | Velocity Swimming | 06/19/2026 | 2026 IE VS Starlight Open (USAS) | |
| 1208 | Linkon Malone | 55.17 | 9 | B Min | BB: 49.29 (+5.88s | 10.7%) | Sawtooth Aquatic Club | 05/16/2025 | 2025 Spring Fling LC Invitational | |
| 1209 | Mithren Vijay | 55.17 | 9 | B Min | BB: 49.29 (+5.88s | 10.7%) | Valley Splash | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 1210 | Alec Henriques | 55.20 | 10 | B Min | BB: 49.29 (+5.91s | 10.7%) | Napa Valley Swim Team | 06/21/2025 | NVST Last Chance AG Champs Summer Plunge 2025 | |
| 1211 | Milan Varga | 55.23 | 5 | B Min | BB: 49.29 (+5.94s | 10.8%) | Terrapins Swim Team | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 1212 | Gordon Tai | 55.23 | 10 | B Min | BB: 49.29 (+5.94s | 10.8%) | Otter Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 1213 | Noah Kim | 55.26 | 10 | B Min | BB: 49.29 (+5.97s | 10.8%) | North Coast Aquatics | 06/06/2026 | 2026 SI JBST SPLASH DASH MAX | |
| 1214 | Tang Li | 55.27 | 9 | B Min | BB: 49.29 (+5.98s | 10.8%) | Denver Swim Academy | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 1215 | Quinn Carton | 55.29 | 10 | B: 44.49 (+10.80s | 19.5%) | Longmont Swim Club | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | ||
| 1216 | Brayden Kramer | 55.29 | 8 | B Min | BB: 49.29 (+6.00s | 10.9%) | Fort Collins Area Swim Team | 04/11/2026 | 2026 CO FAST Vs CUDA Dua; | |
| 1217 | Darian van Gemeren | 55.29 | 9 | B Min | BB: 49.29 (+6.00s | 10.9%) | Multnomah Athletic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 1218 | Mark Tulchinskiy | 55.31 | 10 | B Min | BB: 49.29 (+6.02s | 10.9%) | Jbarracudas Swim Team | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 1219 | Silas Roland | 55.32 | 9 | B Min | BB: 49.29 (+6.03s | 10.9%) | Univ. of Denver Hilltoppers | 07/12/2025 | 2025 CO TOPS SBL Summer Sizzler | |
| 1220 | Santiago Buitrago | 55.32 | 9 | B Min | BB: 49.29 (+6.03s | 10.9%) | Northglenn Fusion Swim Club | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 1221 | Zeke Rosete | 55.33 | 9 | B Min | BB: 49.29 (+6.04s | 10.9%) | Island Aquatics | 05/30/2026 | 2026 MAGSA LCM A 2 Meet | |
| 1222 | Charles Kozina | 55.34 | 8 | B Min | BB: 49.29 (+6.05s | 10.9%) | Front Range Barracudas | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 1223 | Gabriel Dunn | 55.35 | 9 | B Min | BB: 49.29 (+6.06s | 10.9%) | Multnomah Athletic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 1224 | Quintus Cheung | 55.37 | 8 | B Min | BB: 49.29 (+6.08s | 11.0%) | Milpitas Aquatic Club | 07/19/2025 | Alto Last Splash | |
| 1225 | Daniel Titianu | 55.38 | 9 | B Min | BB: 49.29 (+6.09s | 11.0%) | Rogue Rapids | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 1226 | Jacob Yong | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | Seattle Metropolitan Aquatic C | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | ||
| 1227 | Isaac Welmerink | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | Lakeridge Swim Team | 05/22/2026 | 2026 Intermountain Classic Long Course Meet | ||
| 1228 | Cimon Bunuan | 55.40 | 9 | B: 55.39 (+0.01s | 0.0%) | South San Francisco Aquatics | 05/02/2026 | Alto Spring Jam CBA | ||
| 1229 | Jack Spaugy | 55.41 | 8 | B: 55.39 (+0.02s | 0.0%) | Multnomah Athletic Club | 05/01/2026 | 2026 THSC Spring Invite | ||
| 1230 | Everett Funk | 55.41 | 8 | B: 55.39 (+0.02s | 0.0%) | Rogue Rapids | 06/26/2026 | 2026 TEAM Summer Invitational | ||
| 1231 | Isaac Pearce | 55.43 | 8 | B: 55.39 (+0.04s | 0.1%) | Aces Swim Club | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | ||
| 1232 | Jason Ma | 55.43 | 10 | B: 55.39 (+0.04s | 0.1%) | Palo Alto Stanford Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | ||
| 1233 | Carter Pyron | 55.46 | 10 | B: 55.39 (+0.07s | 0.1%) | Aquawolves Swimming | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | ||
| 1234 | Briggs Kelley | 55.47 | 10 | B: 55.39 (+0.08s | 0.1%) | Aquawolves Swimming | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | ||
| 1235 | Trisztan Makkai-Dutchievici | 55.49 | 8 | B: 55.39 (+0.10s | 0.2%) | Front Range Barracudas | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | ||
| 1236 | Dax Lindsey | 55.50 | 9 | B: 55.39 (+0.11s | 0.2%) | Dart Swimming | 06/21/2024 | Reno Aquatic Club Gamble | ||
| 1237 | Andrew Chen | 55.51 | 7 | B: 55.39 (+0.12s | 0.2%) | Thunder Coast Aquatics | 06/12/2026 | Neptune Swimming June LC Meet | ||
| 1238 | Asher Ernest | 55.51 | 10 | B: 55.39 (+0.12s | 0.2%) | Four Corners Aquatic Team | 05/29/2026 | 2026 CO Cortez Summer Open | ||
| 1239 | Arthur Viray | 55.53 | 9 | B: 55.39 (+0.14s | 0.3%) | Daly City Dolphins | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | ||
| 1240 | Elliott Poe Brown | 55.55 | 8 | B: 55.39 (+0.16s | 0.3%) | Burlingame Aquatics | 05/02/2026 | Alto Spring Jam CBA | ||
| 1241 | Watson Xie | 55.56 | 10 | B: 55.39 (+0.17s | 0.3%) | Chinook Aquatic Club | 05/29/2025 | 2025 IE VS Apple Capital | ||
| 1242 | Micah Chiu | 55.56 | 8 | B: 55.39 (+0.17s | 0.3%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | ||
| 1243 | Amnay Cherik | 55.56 | 8 | B: 55.39 (+0.17s | 0.3%) | Tiger Aquatics | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | ||
| 1244 | Colton McKinnon | 55.57 | 10 | B: 55.39 (+0.18s | 0.3%) | Excel Aquatics | 05/28/2026 | 2026 IE VS Apple Capital | ||
| 1245 | Sam Ventura | 55.57 | 8 | B: 55.39 (+0.18s | 0.3%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | ||
| 1246 | Max Zhou | 55.58 | 8 | B: 55.39 (+0.19s | 0.3%) | Santa Clara Swim Club | 06/20/2026 | Zone 1 South Swim Under The Stars | ||
| 1247 | Jonathan Chen | 55.60 | 9 | B: 55.39 (+0.21s | 0.4%) | California Dolphins Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | ||
| 1248 | Marcus Chui | 55.61 | 9 | B: 55.39 (+0.22s | 0.4%) | South San Francisco Aquatics | 05/02/2026 | Alto Spring Jam CBA | ||
| 1249 | Callahan Ford | 55.61 | 9 | B: 55.39 (+0.22s | 0.4%) | Evergreen Hurricanes | 05/16/2025 | 2025 CO NJ Ken Kelley Invite | ||
| 1250 | Sam Zhang | 55.61 | 8 | B: 55.39 (+0.22s | 0.4%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | ||
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.