Western Zone Zone Boys 10 & under - 50 Y Free
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 3701 | Kaisen Mou | 52.65 | 10 | B: 38.19 (+14.46s | 27.5%) | Otter Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | ||
| 3702 | Theodore Sitz | 52.71 | 9 | B: 38.19 (+14.52s | 27.5%) | Fallbrook Assoc Swim T | 06/28/2025 | 2025 SI FAST RISING STARS 2 | ||
| 3703 | Rowin Rajamoney | 52.72 | 9 | B: 38.19 (+14.53s | 27.6%) | Hood River Valley Swim Team | 05/09/2026 | 2026 Spring Sprinter Invitational | ||
| 3704 | Jonathan Podawiltz | 52.73 | 9 | B: 38.19 (+14.54s | 27.6%) | Mlst | 06/14/2025 | Bishop Invitational 2025 | ||
| 3705 | Warren Thompson | 52.74 | 10 | B: 38.19 (+14.55s | 27.6%) | Seattle Metropolitan Aquatic C | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | ||
| 3706 | Jude Lamontagne | 52.75 | 9 | B: 38.19 (+14.56s | 27.6%) | Heartland Swim Assoc | 11/02/2025 | 2025 SI SEA Rising Stars Series Meet 1 | ||
| 3707 | Ethan Ku | 52.75 | 9 | B: 38.19 (+14.56s | 27.6%) | San Ramon Valley Aquatics | 11/02/2024 | SRVA SCY CBBB+ | ||
| 3708 | Lucas Talbot | 52.77 | 8 | B: 38.19 (+14.58s | 27.6%) | San Jose Goosemonkeys | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | ||
| 3709 | Ryder Lewis | 52.78 | 10 | B: 38.19 (+14.59s | 27.6%) | Bishop Swim Team | 09/13/2024 | Molly Lahlum Memorial Autumn Freeze | ||
| 3710 | Charles Velkovski | 52.78 | 9 | B: 38.19 (+14.59s | 27.6%) | Team Sopris Swimming | 04/25/2026 | 2026 CO Aspen Spring Invite | ||
| 3711 | Alex Chen | 52.80 | 7 | B: 38.19 (+14.61s | 27.7%) | Cascadia Swimming | 02/06/2026 | Legacy Aquatics Spring Qualifier | ||
| 3712 | Jayden Yan | 52.80 | 9 | B: 38.19 (+14.61s | 27.7%) | Blue Dolphin Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | ||
| 3713 | Jacob Magy | 52.80 | 9 | B: 38.19 (+14.61s | 27.7%) | SwimTLC-Parker Phenomena Swim | 04/11/2026 | 2026 CO Falfins Summer Series #1 | ||
| 3714 | Spencer Lee | 52.81 | 9 | B: 38.19 (+14.62s | 27.7%) | The Olympic Club | 10/19/2024 | Pumpkin Plunge Invitational | ||
| 3715 | Ty Williams | 52.82 | 8 | B: 38.19 (+14.63s | 27.7%) | Hilltop Aquatic Swim Team | 06/25/2025 | 2025 UT HAST RWB Mini Meet | ||
| 3716 | Austin Ayres | 52.84 | 9 | B: 38.19 (+14.65s | 27.7%) | Flying Horse Aquatics Club | 07/11/2025 | 2025 CO AP Rocky Mountain State Games | ||
| 3717 | Marcus Zheng | 52.85 | 9 | B: 38.19 (+14.66s | 27.7%) | Pacifica Sea Lions | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | ||
| 3718 | Jon Cox | 52.86 | 10 | B: 38.19 (+14.67s | 27.8%) | Durango Swim Club | 04/17/2026 | 2026 CO Jolean Scott Memorial | ||
| 3719 | Brody Marinacci | 52.86 | 10 | B: 38.19 (+14.67s | 27.8%) | Valley Aquatics | 03/21/2026 | 2026 PN OSTSEAL Kaholo Island ClassicApproved | ||
| 3720 | Charles DeRienzo | 52.86 | 8 | B: 38.19 (+14.67s | 27.8%) | Piranha Swimming | 04/18/2026 | RP SWIM CLUB (PRNA) SPRING SWIM FEST! | ||
| 3721 | Benjamin Gyselbrecht | 52.86 | 7 | B: 38.19 (+14.67s | 27.8%) | Manta Ray Aquatics | 03/21/2026 | 2026 SI CAST All Ages NTS Meet South | ||
| 3722 | Kristopher-Calvin Speegle | 52.90 | 10 | B: 38.19 (+14.71s | 27.8%) | Academy Swim Club | 04/05/2026 | 2026 HI BIG ISLAND SWIMMING | ||
| 3723 | Neil Lezin | 52.91 | 6 | B: 38.19 (+14.72s | 27.8%) | Swim Lake City Legends | 12/13/2025 | 2025 UTAH Winter Classic | ||
| 3724 | Adrian Pierre | 52.91 | 9 | B: 38.19 (+14.72s | 27.8%) | Cascade Swim Club | 02/01/2026 | 2026 PN CSC February Mini Meet Approved | ||
| 3725 | Anton Ivanov | 52.94 | 8 | B: 38.19 (+14.75s | 27.9%) | Jbarracudas Swim Team | 10/24/2025 | 2025 SI JBST ALL AGES A BB MEET | ||
| 3726 | Falefatu Moaalii | 52.95 | 7 | B: 38.19 (+14.76s | 27.9%) | Utah Valley Aquatics | 10/23/2025 | Mike Harper Mini Meet | ||
| 3727 | Cassius Bui | 52.95 | 8 | B: 38.19 (+14.76s | 27.9%) | Front Range Barracudas | 01/16/2026 | 2026 CO CUDA Classic | ||
| 3728 | Isaac Nguyen | 52.97 | 9 | B: 38.19 (+14.78s | 27.9%) | YMCA of Snohomish County Barra | 01/24/2026 | 2026 WA State Y Championship Meet | ||
| 3729 | Luke Glazer | 52.97 | 10 | B: 38.19 (+14.78s | 27.9%) | Kamehameha Swim Club | 10/19/2025 | Aulea Fall Frenzy Meet | ||
| 3730 | Fionn Morrow | 52.99 | 9 | B: 38.19 (+14.80s | 27.9%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | ||
| 3731 | William Shi | 52.99 | 9 | B: 38.19 (+14.80s | 27.9%) | Pacific Dragons Swim Team | 03/07/2026 | 2026 PDST Mar Pentathlon Last Chance Approved | ||
| 3732 | Matteo Balzarini | 53.00 | 7 | B: 38.19 (+14.81s | 27.9%) | Valley Aquatics | 04/18/2026 | 2026 PN UPAC Mark Olson Classic Approved | ||
| 3733 | Dmytro Nesterenko | 53.00 | 9 | B: 38.19 (+14.81s | 27.9%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | ||
| 3734 | Theodore Nozawa | 53.01 | 8 | B: 38.19 (+14.82s | 28.0%) | Valley Dolphins Swim Team | 07/11/2025 | 2025 CO AP Rocky Mountain State Games | ||
| 3735 | Ramana Kirk | 53.01 | 8 | B: 38.19 (+14.82s | 28.0%) | Academy Swim Club | 10/18/2025 | BIG ISLAND SWIMMING @ HPA | ||
| 3736 | Mason Tennant | 53.02 | 10 | B: 38.19 (+14.83s | 28.0%) | Palo Alto Stanford Aquatics | 02/22/2025 | 2025 Tri Venue Last Chance Meet PASA | ||
| 3737 | Patrick Woods | 53.04 | 9 | B: 38.19 (+14.85s | 28.0%) | Napa Valley Swim Team | 09/20/2025 | WANV CBA+ Endless Summer Meet | ||
| 3738 | Everett Platt | 53.04 | 9 | B: 38.19 (+14.85s | 28.0%) | Full Armour Swim Team | 05/17/2025 | 2025 CO PEAK Invite | ||
| 3739 | Henry Drumwright | 53.07 | 9 | B: 38.19 (+14.88s | 28.0%) | Silverthorne Tsunami | 05/16/2026 | 2026 CO Sopris FAST Challenge | ||
| 3740 | Ethan Chen | 53.09 | 9 | B: 38.19 (+14.90s | 28.1%) | Palo Alto Stanford Aquatics | 07/20/2025 | 2025 PASA Summer Palooza | ||
| 3741 | Daniel Castro | 53.09 | 10 | B: 38.19 (+14.90s | 28.1%) | Mission Aurora Colorado Swimmi | 11/24/2024 | 2024 CO HRA SBL Turket Trot | ||
| 3742 | Wing Chan | 53.10 | 10 | B: 38.19 (+14.91s | 28.1%) | East Bay Silver Dolphins | 09/13/2025 | East Bay Silver Dolphins Short Course C B BB+ | ||
| 3743 | Maxim Maslovskiy | 53.10 | 7 | B: 38.19 (+14.91s | 28.1%) | West Coast Aquatics | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | ||
| 3744 | Silas Jacobs | 53.11 | 9 | B: 38.19 (+14.92s | 28.1%) | Hilltop Aquatic Swim Team | 09/17/2025 | 2025 UT HAST Sprint Meet | ||
| 3745 | Noah Eskandon | 53.11 | 9 | B: 38.19 (+14.92s | 28.1%) | Unattached | 02/07/2025 | 2025 Valentines Day Age Group Open | ||
| 3746 | Prayan Shrestha | 53.13 | 9 | B: 38.19 (+14.94s | 28.1%) | Mission Aurora Colorado Swimmi | 11/01/2024 | 2024 CO ACES High Point Invite | ||
| 3747 | Goh Oliveira | 53.14 | 10 | B: 38.19 (+14.95s | 28.1%) | Chinook Aquatic Club | 03/07/2026 | 2026 PN C March Madness Approved | ||
| 3748 | Calvin Peek | 53.15 | 9 | B: 38.19 (+14.96s | 28.1%) | Pacific Dragons Swim Team | 03/07/2026 | 2026 PDST Mar Pentathlon Last Chance Approved | ||
| 3749 | Isaac Kantor | 53.16 | 10 | B: 38.19 (+14.97s | 28.2%) | AC Swim Club | 07/26/2025 | 2025 REAL Championships | ||
| 3750 | Mateo Flores | 53.17 | 9 | B: 38.19 (+14.98s | 28.2%) | San Ramon Valley Aquatics | 12/14/2024 | Richard Thorntorn Memorial Meet SCY CBBB+ | ||
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.