Western Zone Zone Boys 10 & under - 50 Y Breast
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 | Reef McDonald | 49.72 | 10 | B Min | BB: 47.69 (+2.03s | 4.1%) | Burlingame Aquatics | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | |
| 902 | Demid Mozgov | 49.72 | 10 | B Min | BB: 47.69 (+2.03s | 4.1%) | Bure-Aqua Academy | 03/07/2025 | 2025 CO CSI Silver State Championships | |
| 903 | Daniel Gerasimov | 49.72 | 8 | B Min | BB: 47.69 (+2.03s | 4.1%) | Los Gatos Swim Club | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 904 | Wesley Clemens | 49.72 | 9 | B Min | BB: 47.69 (+2.03s | 4.1%) | Bay Club Aquatics | 02/21/2026 | 2026 SI JBST Age Group Champs Max | |
| 905 | Avyan Bajpai | 49.74 | 9 | B Min | BB: 47.69 (+2.05s | 4.1%) | Hillsboro Swim Team | 12/13/2025 | 2025 OR HEAT Winter Invitational | |
| 906 | Rasmus Andrews | 49.75 | 10 | B Min | BB: 47.69 (+2.06s | 4.1%) | Beast | 09/21/2024 | 2024 CO DGO Big Mountain Invite | |
| 907 | Lance Coyne | 49.78 | 9 | B Min | BB: 47.69 (+2.09s | 4.2%) | Mission Aurora Colorado Swimmi | 02/13/2026 | 2026 CO Loveland Last Chance Sweetheart Meet | |
| 908 | Theodore Gerber | 49.78 | 10 | B Min | BB: 47.69 (+2.09s | 4.2%) | Wave Aquatics | 12/06/2025 | 2025 PN Fall Divisionals, Division 3 WAVE | |
| 909 | Edmund Lin | 49.79 | 9 | B Min | BB: 47.69 (+2.10s | 4.2%) | California Dolphins Swim Team | 09/27/2025 | PC LAC C B BB | |
| 910 | Gabriel Saldanha | 49.80 | 9 | B Min | BB: 47.69 (+2.11s | 4.2%) | Wasatch Front Fish Market | 12/04/2025 | 2025 Holiday Swim Festival | |
| 911 | Henry Reed | 49.80 | 9 | B Min | BB: 47.69 (+2.11s | 4.2%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 912 | Sol Murdach | 49.81 | 9 | B Min | BB: 47.69 (+2.12s | 4.3%) | Port Angeles Swim Club | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 913 | Lucas Liu | 49.81 | 9 | B Min | BB: 47.69 (+2.12s | 4.3%) | Bellevue Club Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 914 | Timur Shafigulin | 49.82 | 10 | B Min | BB: 47.69 (+2.13s | 4.3%) | Wave Aquatics | 11/01/2025 | 2025 PN Bob Miller Sprint Distance Classic | |
| 915 | Benjamin Robinson | 49.82 | 9 | B Min | BB: 47.69 (+2.13s | 4.3%) | Neptune Swimming | 07/26/2025 | 2025 REAL Championships | |
| 916 | Leo Miyamoto | 49.83 | 10 | B Min | BB: 47.69 (+2.14s | 4.3%) | Napa Valley Swim Team | 11/15/2025 | NVST Swimming Into Fall 2025 | |
| 917 | Patrick Bennett | 49.83 | 9 | B Min | BB: 47.69 (+2.14s | 4.3%) | Olympus Aquatics | 12/18/2025 | 2025 OA IMR II Copied | |
| 918 | Theodore Maxfield | 49.84 | 9 | B Min | BB: 47.69 (+2.15s | 4.3%) | Pikes Peak Athletics | 03/06/2026 | 2026 CO 14 U Silver State | |
| 919 | Gavin Liu | 49.84 | 9 | B Min | BB: 47.69 (+2.15s | 4.3%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 920 | Joseph Leach | 49.85 | 9 | B Min | BB: 47.69 (+2.16s | 4.3%) | Highlands Ranch Aquatics | 03/13/2026 | Mile High Championship Invitational | |
| 921 | Cash Storm | 49.85 | 10 | B Min | BB: 47.69 (+2.16s | 4.3%) | Beast | 12/04/2025 | 2025 Holiday Swim Festival | |
| 922 | Leonardo Garcia | 49.85 | 9 | B Min | BB: 47.69 (+2.16s | 4.3%) | Caldwell Swim Club | 12/06/2025 | Reindeer Games 2025 | |
| 923 | Marcus Chistol | 49.88 | 10 | B Min | BB: 47.69 (+2.19s | 4.4%) | Livermore AquaCowboys | 09/27/2025 | PC LAC C B BB | |
| 924 | Owen Sullivan | 49.91 | 9 | B Min | BB: 47.69 (+2.22s | 4.4%) | Clackamas | 02/13/2026 | 2026 OR HS 6A 4 | |
| 925 | Calvin Kvamme | 49.91 | 10 | B Min | BB: 47.69 (+2.22s | 4.4%) | Fort Collins Area Swim Team | 01/10/2026 | 2026 CO FAST Vs TOPS Vs RIP | |
| 926 | Renzhe Li | 49.93 | 10 | B Min | BB: 47.69 (+2.24s | 4.5%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 927 | Lucas Sun | 49.93 | 9 | B Min | BB: 47.69 (+2.24s | 4.5%) | Alto Swim Club | 12/19/2025 | ALTO Candy Cane Classic | |
| 928 | George Bilyk | 49.93 | 8 | B Min | BB: 47.69 (+2.24s | 4.5%) | Issaquah Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 929 | Wilson Ellsworth | 49.95 | 10 | B Min | BB: 47.69 (+2.26s | 4.5%) | Thurston Olympians Swim Club | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 930 | Benjamin Tanner | 49.96 | 9 | B Min | BB: 47.69 (+2.27s | 4.5%) | Cedar Swim Club | 09/26/2025 | Stingrays Fall Fling Sep 2025 | |
| 931 | Nolan Harley | 49.96 | 10 | B Min | BB: 47.69 (+2.27s | 4.5%) | Aulea Swim Club | 03/07/2026 | 2026 HI Junior Age Group SCY Championship | |
| 932 | Maxx Yu | 49.97 | 10 | B Min | BB: 47.69 (+2.28s | 4.6%) | Burlingame Aquatics | 03/07/2026 | BAC Race To AGCs | |
| 933 | Owen Laidlaw | 49.97 | 8 | B Min | BB: 47.69 (+2.28s | 4.6%) | Island Aquatics | 12/06/2025 | 2025 MAGSA SCY B3 Meet | |
| 934 | Reid Barylski | 49.99 | 10 | B Min | BB: 47.69 (+2.30s | 4.6%) | Neptune Swimming | 09/27/2025 | Neptune Swimming Fall Classic | |
| 935 | Elliott Lee Chan Kam | 49.99 | 9 | B Min | BB: 47.69 (+2.30s | 4.6%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 936 | Brendan Stork | 50.00 | 10 | B Min | BB: 47.69 (+2.31s | 4.6%) | Clovis Swim Club | 01/10/2026 | 2026 Clovis Swim Club Winter Open | |
| 937 | Mingzuo Cheng | 50.00 | 10 | B Min | BB: 47.69 (+2.31s | 4.6%) | Rancho San Dieguito | 01/10/2026 | 2026 SI BAY 14U Rising Stars 3 | |
| 938 | Arie Allred | 50.01 | 10 | B Min | BB: 47.69 (+2.32s | 4.6%) | South Davis Aquatics Team | 11/21/2025 | 2025 MAC Thanksgiving Invitational | |
| 939 | Holden Hanna | 50.01 | 10 | B Min | BB: 47.69 (+2.32s | 4.6%) | Mission Aurora Colorado Swimmi | 01/09/2026 | 2026 CO NJ Narwhal Invitational | |
| 940 | Tej Bennett | 50.01 | 10 | B Min | BB: 47.69 (+2.32s | 4.6%) | Cascade Swim Club | 12/06/2025 | 2025 PN Fall Divisionals, Division 2 | |
| 941 | Finn Swarts | 50.03 | 7 | B Min | BB: 47.69 (+2.34s | 4.7%) | North Jeffco Swim Team | 03/13/2026 | Mile High Championship Invitational | |
| 942 | Andreas Kwiram | 50.03 | 9 | B Min | BB: 47.69 (+2.34s | 4.7%) | Hills Hurricane Swimming | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 943 | River Narus | 50.04 | 8 | B Min | BB: 47.69 (+2.35s | 4.7%) | Gold Medal Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 944 | Cimon Bunuan | 50.05 | 9 | B Min | BB: 47.69 (+2.36s | 4.7%) | South San Francisco Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 945 | Kenneth Green | 50.06 | 9 | B Min | BB: 47.69 (+2.37s | 4.7%) | Pro Swimming | 03/06/2026 | 2026 PN PRO March Last Chance Intra Apprived | |
| 946 | Lewis Paragas | 50.07 | 9 | B Min | BB: 47.69 (+2.38s | 4.8%) | Excel Aquatics | 10/18/2025 | 2025 PN IST Fall Open | |
| 947 | Chenrui Cui | 50.07 | 8 | B Min | BB: 47.69 (+2.38s | 4.8%) | Stingray Swim Team | 11/15/2025 | 2025 PN IST November Invitational | |
| 948 | Owen Lee | 50.07 | 9 | B Min | BB: 47.69 (+2.38s | 4.8%) | Chinook Aquatic Club | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 949 | Lionel Sudduth | 50.07 | 8 | B Min | BB: 47.69 (+2.38s | 4.8%) | Excel Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 950 | Jason Ma | 50.08 | 9 | B Min | BB: 47.69 (+2.39s | 4.8%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
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.