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 | |
|---|---|---|---|---|---|---|---|---|---|
| 901 | Bennett Arguello | 43.40 | 9 | B Min | BB: 42.89 (+0.51s | 1.2%) | Greenwood Tiger Sharks | 12/12/2025 | 2025 CO NJ Blizzard Invite | |
| 902 | Maximus Coleman | 43.40 | 10 | B Min | BB: 42.89 (+0.51s | 1.2%) | Cottonwood Heights Aquatics | 11/14/2025 | 2025 UT HAST Fall Back Bash | |
| 903 | Alroy Conry | 43.42 | 7 | B Min | BB: 42.89 (+0.53s | 1.2%) | Aces Swim Club | 01/23/2026 | 2026 CO TOPS Colorado Open | |
| 904 | Soren Haas | 43.42 | 9 | B Min | BB: 42.89 (+0.53s | 1.2%) | Mesa Aquatics Club | 02/14/2025 | 33rd Annual Lost Dutchman Invitational | |
| 905 | Michael Sandmann | 43.43 | 9 | B Min | BB: 42.89 (+0.54s | 1.2%) | McMinnville Swim Club | 01/02/2026 | 2026 CST Shark Chase Invitational | |
| 906 | Adrian Mendoza | 43.43 | 9 | B Min | BB: 42.89 (+0.54s | 1.2%) | Front Range Barracudas | 12/06/2024 | 2024 CO CSI Pioneer Open | |
| 907 | Clark Wilson | 43.43 | 10 | B Min | BB: 42.89 (+0.54s | 1.2%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 908 | Paxton Padilla | 43.44 | 9 | B Min | BB: 42.89 (+0.55s | 1.3%) | Pueblo County Swim Team | 01/25/2026 | 2026 CO PSC Winter Sprints | |
| 909 | Caleb Taussig | 43.45 | 9 | B Min | BB: 42.89 (+0.56s | 1.3%) | Denver Swim Academy | 01/02/2026 | 2026 CO COSA New Year Open | |
| 910 | Levi Bowen | 43.46 | 9 | B Min | BB: 42.89 (+0.57s | 1.3%) | Portneuf Valley Swim Team | 10/25/2025 | Spook Splash 2025 | |
| 911 | Adrian Goo | 43.46 | 9 | B Min | BB: 42.89 (+0.57s | 1.3%) | Walnut Creek Aquabears | 07/26/2025 | Zone 2 Summer Championships | |
| 912 | Hudson Vieth | 43.47 | 10 | B Min | BB: 42.89 (+0.58s | 1.3%) | Cascade Swim Club | 11/16/2025 | 2025 PN CSC Distance Plus Intrasquad | |
| 913 | Caden Seiber | 43.47 | 9 | B Min | BB: 42.89 (+0.58s | 1.3%) | University Place Aquatic Club | 02/14/2025 | 2025 PN UPAC 4th Annual February Fly In | |
| 914 | Jeffrey Lou | 43.47 | 8 | B Min | BB: 42.89 (+0.58s | 1.3%) | Seattle Metropolitan Aquatic C | 10/04/2025 | 2025 PN SMAC Fall Kick Off Invitational | |
| 915 | Logan Yip | 43.48 | 10 | B Min | BB: 42.89 (+0.59s | 1.4%) | South San Francisco Aquatics | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | |
| 916 | Ryan Song | 43.49 | 8 | B Min | BB: 42.89 (+0.60s | 1.4%) | Wasc | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 917 | Zixin Cheng | 43.49 | 9 | B Min | BB: 42.89 (+0.60s | 1.4%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 918 | Owen Weber | 43.49 | 9 | B Min | BB: 42.89 (+0.60s | 1.4%) | CAC Stingrays Swim Team | 01/23/2026 | 2026 CO TOPS Colorado Open | |
| 919 | Aiden Tam | 43.51 | 10 | B Min | BB: 42.89 (+0.62s | 1.4%) | Sunnyvale Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 920 | Connor Lehman | 43.51 | 10 | B Min | BB: 42.89 (+0.62s | 1.4%) | Sea Lions Swim Team | 02/07/2026 | 2026 OR HEAT BC Blastoff | |
| 921 | Matthew Caldwell | 43.53 | 9 | B Min | BB: 42.89 (+0.64s | 1.5%) | Univ. of Denver Hilltoppers | 12/13/2024 | 2024 CO FAST Bill Spahn Mid Season Finale | |
| 922 | Henry Luevano | 43.53 | 7 | B Min | BB: 42.89 (+0.64s | 1.5%) | Aces Swim Club | 03/07/2025 | 2025 CO CSI Silver State Championships | |
| 923 | Kanoa Kikuta | 43.54 | 9 | B Min | BB: 42.89 (+0.65s | 1.5%) | Shasta YMCA Sharks | 11/21/2025 | 2025 Rogue Rapids Sofia Marks Invitational | |
| 924 | Calvin Kvamme | 43.55 | 10 | B Min | BB: 42.89 (+0.66s | 1.5%) | Fort Collins Area Swim Team | 01/10/2026 | 2026 CO FAST Vs TOPS Vs RIP | |
| 925 | Leo Yan | 43.56 | 10 | B Min | BB: 42.89 (+0.67s | 1.5%) | Eastside Aquatic Swim Team | 11/15/2025 | 2025 PN IST November Invitational | |
| 926 | Wesley Lang | 43.58 | 9 | B Min | BB: 42.89 (+0.69s | 1.6%) | River Road Swim Team | 11/01/2025 | 2025 AAA Turkey Dive Invitational | |
| 927 | Alexandru Varga | 43.58 | 10 | B Min | BB: 42.89 (+0.69s | 1.6%) | Terrapins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 928 | Cameron Lee | 43.58 | 9 | B Min | BB: 42.89 (+0.69s | 1.6%) | Usf Youth Swimming | 09/27/2025 | Neptune Swimming Fall Classic | |
| 929 | John Telischak | 43.59 | 10 | B Min | BB: 42.89 (+0.70s | 1.6%) | Palo Alto Stanford Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | |
| 930 | George Bolt | 43.59 | 10 | B Min | BB: 42.89 (+0.70s | 1.6%) | Beaverton Area Aquatics Club | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 931 | Jack Youree | 43.60 | 10 | B Min | BB: 42.89 (+0.71s | 1.6%) | Kamehameha Swim Club | 10/25/2025 | 2025 HI 25th Annual Bill Smith Invitational | |
| 932 | Aurik Ghosh Moulick | 43.61 | 9 | B Min | BB: 42.89 (+0.72s | 1.7%) | Milpitas Aquatic Club | 02/08/2025 | Swim South Bay | |
| 933 | Aarav Narayan | 43.61 | 8 | B Min | BB: 42.89 (+0.72s | 1.7%) | California Gold | 01/13/2024 | 2024 Tiger Aquatics C B BB+ | |
| 934 | Aaron Wang | 43.62 | 9 | B Min | BB: 42.89 (+0.73s | 1.7%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 935 | Matteo Vargas | 43.63 | 10 | B Min | BB: 42.89 (+0.74s | 1.7%) | Life Time Fitness Utah Swim Te | 11/06/2025 | 2025 OA Thanksgiving Turkey Meet | |
| 936 | Jason Wang | 43.63 | 10 | B Min | BB: 42.89 (+0.74s | 1.7%) | Bellingham Bay Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 2 | |
| 937 | Maxwell Johnson | 43.63 | 9 | B Min | BB: 42.89 (+0.74s | 1.7%) | Excel Aquatics | 12/13/2025 | 2025 Ho Ho Ho Holiday 12 Under Meet | |
| 938 | Leo Beaver | 43.63 | 9 | B Min | BB: 42.89 (+0.74s | 1.7%) | Portland Aquatic Club | 10/17/2025 | 2025 THSC Fall Open | |
| 939 | Theodore McElderry | 43.63 | 9 | B Min | BB: 42.89 (+0.74s | 1.7%) | Utah Valley Aquatics | 07/02/2025 | 2025 14 Under Intrasquad | |
| 940 | Erik Shabdanov | 43.63 | 8 | B Min | BB: 42.89 (+0.74s | 1.7%) | Sunnyvale Swim Club | 10/25/2025 | 2025 SUNN Fall Classic | |
| 941 | Daniel Schad | 43.65 | 9 | B Min | BB: 42.89 (+0.76s | 1.7%) | Maui Dolphins Swim Club | 11/01/2025 | 2025 MAGSA B 2 SCY Meet | |
| 942 | Rhys Mehta | 43.66 | 9 | B Min | BB: 42.89 (+0.77s | 1.8%) | Tualatin Hills Swim Club | 01/16/2026 | 2026 THSC 14 U Winter Showcase | |
| 943 | Alex Chen | 43.66 | 7 | B Min | BB: 42.89 (+0.77s | 1.8%) | Aquazot Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 944 | Adam Kirk | 43.67 | 10 | B Min | BB: 42.89 (+0.78s | 1.8%) | Palo Alto Stanford Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 945 | Jackson Porter | 43.67 | 9 | B Min | BB: 42.89 (+0.78s | 1.8%) | Stingray Swim Team | 09/27/2025 | 2025 PN IST Sockeye Sprints | |
| 946 | Minjun Park | 43.68 | 10 | B Min | BB: 42.89 (+0.79s | 1.8%) | Chinook Aquatic Club | 11/22/2025 | 2025 PN November AGI Div 1 (PDST) | |
| 947 | Atlas Berkhaug | 43.69 | 10 | B Min | BB: 42.89 (+0.80s | 1.8%) | North Bay Aquatics | 09/20/2025 | WANV CBA+ Endless Summer Meet | |
| 948 | Marcus Wang | 43.70 | 9 | B Min | BB: 42.89 (+0.81s | 1.9%) | Pacific Dragons Swim Team | 01/24/2026 | 2026 PN PDST Winter Invitational Meet Approv | |
| 949 | Jonaz Valencia | 43.70 | 8 | B Min | BB: 42.89 (+0.81s | 1.9%) | Canyons Aquatic Club | 10/25/2025 | CANY Harry Potter Meet | |
| 950 | Oliver Ng | 43.70 | 9 | B Min | BB: 42.89 (+0.81s | 1.9%) | Life Time Oregon Swim Team | 10/17/2025 | 2025 CST Harvest Open | |
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.