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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1101 | Jeffrey Xin | 44.57 | 8 | B Min | BB: 42.89 (+1.68s | 3.8%) | Aquazot Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 1102 | Archer Sytsma | 44.57 | 10 | B Min | BB: 42.89 (+1.68s | 3.8%) | Univ. of Denver Hilltoppers | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 1103 | Dudu Du | 44.57 | 10 | B Min | BB: 42.89 (+1.68s | 3.8%) | Pacific Dragons Swim Team | 01/25/2025 | 2025 PN PDST Winter Invitational | |
| 1104 | Ryan Hu | 44.59 | 8 | B Min | BB: 42.89 (+1.70s | 3.8%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 1105 | Beau Connelly | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Los Gatos Swim Club | 02/08/2025 | Swim South Bay | |
| 1106 | Octavio Bejarano Barraza | 44.60 | 9 | B Min | BB: 42.89 (+1.71s | 3.8%) | Centro Acuatico Universitario | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 1107 | Killian Adams | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Stingray Swim Team | 09/27/2025 | 2025 PN IST Sockeye Sprints | |
| 1108 | Reece Donaldson | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Stingray Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | |
| 1109 | Adam Wanichek | 44.60 | 10 | B Min | BB: 42.89 (+1.71s | 3.8%) | Bellevue Club Swim Team | 03/06/2026 | 2026 BBST Seize The Day Invitational | |
| 1110 | William Frohnen | 44.61 | 9 | B Min | BB: 42.89 (+1.72s | 3.9%) | San Ramon Valley Aquatics | 11/08/2025 | Brentwood Seawolves SCY C B BB+ | |
| 1111 | Geva Shacham | 44.62 | 10 | B Min | BB: 42.89 (+1.73s | 3.9%) | Boulder Swim Team | 03/13/2026 | Mile High Championship Invitational | |
| 1112 | Charles Thomas | 44.64 | 9 | B Min | BB: 42.89 (+1.75s | 3.9%) | Excel Aquatics | 12/13/2025 | 2025 Ho Ho Ho Holiday 12 Under Meet | |
| 1113 | Declan Trainer | 44.64 | 7 | B Min | BB: 42.89 (+1.75s | 3.9%) | Socal Aquatics Association | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 1114 | Owen Bronson | 44.64 | 9 | B Min | BB: 42.89 (+1.75s | 3.9%) | Legacy Aquatics | 01/16/2026 | 2026 THSC 14 U Winter Showcase | |
| 1115 | Wesley Tong | 44.64 | 10 | B Min | BB: 42.89 (+1.75s | 3.9%) | Front Range Barracudas | 04/18/2025 | 2025 CO CUDA Pizza Meet | |
| 1116 | Bowman Smith | 44.64 | 9 | B Min | BB: 42.89 (+1.75s | 3.9%) | Thunderbird Aquatic Club | 03/28/2026 | 2026 PN Spring Showdown, Div 3 Approved | |
| 1117 | Cooper Casebolt | 44.65 | 9 | B Min | BB: 42.89 (+1.76s | 3.9%) | Life Time Colorado Swim Club | 02/01/2026 | 2026 CO FORM February Freeze | |
| 1118 | Itai Nadav | 44.66 | 9 | B Min | BB: 42.89 (+1.77s | 4.0%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 1119 | William Chu | 44.66 | 9 | B Min | BB: 42.89 (+1.77s | 4.0%) | Pacific Dragons Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 1120 | Mason Erickson | 44.66 | 10 | B Min | BB: 42.89 (+1.77s | 4.0%) | Tualatin Hills Swim Club | 10/17/2025 | 2025 THSC Fall Open | |
| 1121 | Eric Hu | 44.66 | 9 | B Min | BB: 42.89 (+1.77s | 4.0%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 1122 | William Lange | 44.66 | 10 | B Min | BB: 42.89 (+1.77s | 4.0%) | Seattle Metropolitan Aquatic C | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 1123 | Atharv Choubey | 44.67 | 9 | B Min | BB: 42.89 (+1.78s | 4.0%) | Olympic Cascade Aquatics | 02/27/2026 | 2026 PN February AGI, Div 3 Approved | |
| 1124 | Jacob Hernandez | 44.69 | 8 | B Min | BB: 42.89 (+1.80s | 4.0%) | Pikes Peak Athletics | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 1125 | Luke Atanasov | 44.72 | 8 | B Min | BB: 42.89 (+1.83s | 4.1%) | Tualatin Hills Swim Club | 01/16/2026 | 2026 THSC 14 U Winter Showcase | |
| 1126 | Rocky Killingsworth | 44.72 | 10 | B Min | BB: 42.89 (+1.83s | 4.1%) | Lakeridge Swim Team | 01/17/2025 | 2025 Blizzard Blast Swim Meet | |
| 1127 | Nikshay Chandrasekar | 44.76 | 9 | B Min | BB: 42.89 (+1.87s | 4.2%) | Pro Swimming | 03/06/2026 | 2026 PN PRO March Last Chance Intra Apprived | |
| 1128 | Phillip Adams | 44.76 | 9 | B Min | BB: 42.89 (+1.87s | 4.2%) | Swim Team of Placentia | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 1129 | Ahaan Iragavarapu | 44.77 | 10 | B Min | BB: 42.89 (+1.88s | 4.2%) | Pro Swimming | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | |
| 1130 | Gabriel Martinez | 44.77 | 9 | B Min | BB: 42.89 (+1.88s | 4.2%) | Aces Swim Club | 12/12/2025 | 2025 CO NJ Blizzard Invite | |
| 1131 | Theodore Cook | 44.77 | 9 | B Min | BB: 42.89 (+1.88s | 4.2%) | SlipStream Aquatics | 03/13/2026 | Mile High Championship Invitational | |
| 1132 | Basil Erickson | 44.77 | 10 | B Min | BB: 42.89 (+1.88s | 4.2%) | Excel Aquatics | 11/22/2025 | 2025 PN November AGI Div 1 (PDST) | |
| 1133 | Caleb McGovern | 44.78 | 10 | B Min | BB: 42.89 (+1.89s | 4.2%) | Portland Aquatic Club | 09/27/2025 | FGSC 2025 Season Opener Pentathlon | |
| 1134 | Sven Kelley | 44.78 | 9 | B Min | BB: 42.89 (+1.89s | 4.2%) | North Jeffco Swim Team | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 1135 | Kai Vo | 44.79 | 9 | B Min | BB: 42.89 (+1.90s | 4.2%) | Splash Aquatics | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 1136 | Theodore Johnson | 44.81 | 10 | B Min | BB: 42.89 (+1.92s | 4.3%) | North Jeffco Swim Team | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 1137 | Mason Verwers | 44.83 | 9 | B Min | BB: 42.89 (+1.94s | 4.3%) | Unattached | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 1138 | Van Ewing | 44.83 | 10 | B Min | BB: 42.89 (+1.94s | 4.3%) | Tahoe Swim Club | 02/06/2026 | 2026 Valentines Day Age Group Open | |
| 1139 | Adam Jablonski | 44.83 | 10 | B Min | BB: 42.89 (+1.94s | 4.3%) | Elevation Athletics | 01/16/2026 | 2026 CO CUDA Classic | |
| 1140 | Rasmus Andrews | 44.84 | 10 | B Min | BB: 42.89 (+1.95s | 4.3%) | Beast | 09/21/2024 | 2024 CO DGO Big Mountain Invite | |
| 1141 | Callan Purcell | 44.84 | 10 | B Min | BB: 42.89 (+1.95s | 4.3%) | Life Time Colorado Swim Club | 02/13/2026 | 2026 CO Valentine Open | |
| 1142 | Benjamin Pho | 44.87 | 10 | B Min | BB: 42.89 (+1.98s | 4.4%) | Gold\\\\\\'s Aquatics Club | 11/22/2025 | 2025 PN November AGI Div 1 (PDST) | |
| 1143 | Aiden Huang | 44.87 | 10 | B Min | BB: 42.89 (+1.98s | 4.4%) | DeAnza Cupertino Aquatics | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 1144 | Steven Ilbana | 44.87 | 9 | B Min | BB: 42.89 (+1.98s | 4.4%) | Spokane Waves Aquatic Team | 12/05/2025 | 2025 SWAT Winter Invite | |
| 1145 | Alexander Krapp | 44.87 | 9 | B Min | BB: 42.89 (+1.98s | 4.4%) | Thurston Olympians Swim Club | 03/21/2026 | 2026 PN OSTSEAL Kaholo Island ClassicApproved | |
| 1146 | Emmett McDonald | 44.87 | 10 | B Min | BB: 42.89 (+1.98s | 4.4%) | Highlands Ranch Aquatics | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 1147 | Milo Chan | 44.87 | 9 | B Min | BB: 42.89 (+1.98s | 4.4%) | Seattle Metropolitan Aquatic C | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 1148 | Kekalaholuokekaipueo Hanson | 44.89 | 9 | B Min | BB: 42.89 (+2.00s | 4.5%) | Punahou Aquatics Institute | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 1149 | Oliver Liu | 44.89 | 10 | B Min | BB: 42.89 (+2.00s | 4.5%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 1150 | Thomas Cooke | 44.90 | 9 | B Min | BB: 42.89 (+2.01s | 4.5%) | Aptos Cabrillo Swim Club | 10/04/2024 | SCSC Pacific Swimming Short Cours C B A+ Meet | |
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.