Southern 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1501 | Ethan Box | 48.22 | 10 | B Min | BB: 42.89 (+5.33s | 11.1%) | Unattached | 07/25/2026 | 2026 FL Summer Area 2 Championships Working | |
| 1502 | Travis Busch | 48.22 | 10 | B Min | BB: 42.89 (+5.33s | 11.1%) | Medina Valley Swim Club | 12/20/2024 | 2024 ST SASA Tis The Season | |
| 1503 | Colin Lan | 48.23 | 8 | B Min | BB: 42.89 (+5.34s | 11.1%) | Tnt Swimming | 01/16/2026 | 2026 GPAC Winter Invitational | |
| 1504 | Ethan Khassine | 48.23 | 8 | B Min | BB: 42.89 (+5.34s | 11.1%) | Nitro Swimming | 09/18/2026 | 2026 ST AQTX Round Rock Unclassified | |
| 1505 | Liam Brown | 48.23 | 8 | B Min | BB: 42.89 (+5.34s | 11.1%) | Northern KY Clippers | 10/23/2026 | 2026 CLPR Halloween Meet | |
| 1506 | Bentley Le | 48.24 | 9 | B Min | BB: 42.89 (+5.35s | 11.1%) | Aggie Swim Club | 02/09/2025 | Ags 020925 Intrasquad Meet | |
| 1507 | Anson Xu | 48.24 | 10 | B Min | BB: 42.89 (+5.35s | 11.1%) | Marlins Of Raleigh | 01/16/2026 | 2026 RSA Winter Tri | |
| 1508 | Aaron Castro | 48.24 | 9 | B Min | BB: 42.89 (+5.35s | 11.1%) | San Antonio Wave | 10/10/2025 | 2025 ST SASA Sombrero Series Dos Copied | |
| 1509 | Levi Roncone | 48.24 | 9 | B Min | BB: 42.89 (+5.35s | 11.1%) | Laker Swim | 10/17/2026 | 2026 Laker IMX Showdown | |
| 1510 | Declan Kana | 48.25 | 9 | B Min | BB: 42.89 (+5.36s | 11.1%) | First Colony Swim Team, Inc. | 11/08/2024 | Sharks November Invitational | |
| 1511 | Jason Gu | 48.26 | 9 | B Min | BB: 42.89 (+5.37s | 11.1%) | Waterloo Swimming | 10/18/2026 | 2026 ST TXLA 10 U Fall Kick Off Invite | |
| 1512 | Henry Nguyen | 48.26 | 10 | B Min | BB: 42.89 (+5.37s | 11.1%) | Aquatex Swim & Water Polo Team | 10/23/2026 | 2026 ST AQTX FNR 10232026 | |
| 1513 | Jackson Ferreras | 48.28 | 10 | B Min | BB: 42.89 (+5.39s | 11.2%) | Miami County Day Aquatic | 02/14/2026 | NMST BMHG February BC Invite 26 | |
| 1514 | Greyson Donolli | 48.29 | 9 | B Min | BB: 42.89 (+5.40s | 11.2%) | Swim Gym | 09/19/2026 | 2026 DSC Season Opener Invite | |
| 1515 | Bryan Moore | 48.30 | 10 | B: 48.29 (+0.01s | 0.0%) | Watauga Swim Team | 02/14/2026 | 12th Annual Chris Peterson Invitational | ||
| 1516 | Ethan Lai | 48.30 | 9 | B: 48.29 (+0.01s | 0.0%) | Nitro Swimming | 10/18/2026 | 2026 ST TXLA 10 U Fall Kick Off Invite | ||
| 1517 | John Kinahan | 48.31 | 10 | B: 48.29 (+0.02s | 0.0%) | Unattached | 12/13/2025 | 2025 T2 Candy Cane Meet | ||
| 1518 | Owen Boaz | 48.31 | 10 | B: 48.29 (+0.02s | 0.0%) | Cullman Swim Association | 10/03/2026 | 2026 SES WAKE CTA Spooky Splash | ||
| 1519 | Cole Rowley | 48.32 | 8 | B: 48.29 (+0.03s | 0.1%) | Mecklenburg Swim Association | 01/17/2026 | 2026 MSA January Invite | ||
| 1520 | Andrew Talstein | 48.33 | 10 | B: 48.29 (+0.04s | 0.1%) | Summerville Family YMCA | 03/19/2026 | 2026 USRY Short Course Champs | ||
| 1521 | Killian Gyovai | 48.33 | 9 | B: 48.29 (+0.04s | 0.1%) | Raleigh Swimming Association | 01/16/2026 | 2026 RSA Winter Tri | ||
| 1522 | Declan McNamara | 48.33 | 9 | B: 48.29 (+0.04s | 0.1%) | Nsea Swim | 05/29/2026 | 2026 NSEA Swim May Flowers WOW Dual Meet | ||
| 1523 | Earnest Ding | 48.33 | 10 | B: 48.29 (+0.04s | 0.1%) | Waterloo Swimming | 09/20/2026 | 2026 ST WLOO September Splash | ||
| 1524 | Martin Capdevila | 48.34 | 10 | B: 48.29 (+0.05s | 0.1%) | Cypress Fairbanks Swim Club | 02/21/2025 | MAC Hosted 2025 Gulf 12 Under Champs | ||
| 1525 | Samuel Baker | 48.34 | 7 | B: 48.29 (+0.05s | 0.1%) | Triton Swimming of Louisville | 10/16/2026 | 2026 SwimVille USA Jack Thompson Classic | ||
| 1526 | Mason King | 48.36 | 9 | B: 48.29 (+0.07s | 0.1%) | First Colony Swim Team, Inc. | 11/08/2024 | Sharks November Invitational | ||
| 1527 | Graham Carr | 48.36 | 8 | B: 48.29 (+0.07s | 0.1%) | Marlins Of Raleigh | 03/14/2026 | 2026 MOR Reagan Martin Rocks Swim Meet | ||
| 1528 | Gram Stone | 48.37 | 10 | B: 48.29 (+0.08s | 0.2%) | Wake Aquatics | 09/12/2026 | 2026 BSL SE Sprint Into Fall | ||
| 1529 | Ernesto Alvelais | 48.37 | 10 | B: 48.29 (+0.08s | 0.2%) | Celebration Cyclones | 09/19/2026 | 2026 Heart Of Florida Swim Meet | ||
| 1530 | Andrew Lyuts | 48.38 | 9 | B: 48.29 (+0.09s | 0.2%) | The Woodlands Swim Team | 10/25/2024 | 2024 TWST Halloween Meet | ||
| 1531 | Preston Perez | 48.38 | 10 | B: 48.29 (+0.09s | 0.2%) | Sarasota Tsunami Swim Team | 09/19/2026 | 2026 GCST FALL OPEN | ||
| 1532 | Landon Christopher | 48.39 | 9 | B: 48.29 (+0.10s | 0.2%) | Lakeland Country Club | 06/21/2025 | 2025 Riptide Aquatics Summer Open | ||
| 1533 | Mack Maynard | 48.40 | 9 | B: 48.29 (+0.11s | 0.2%) | Swimchester Sailfish | 12/05/2025 | 2025 Holiday Classic | ||
| 1534 | Aaron Chen | 48.40 | 10 | B: 48.29 (+0.11s | 0.2%) | SwimMAC Carolina | 01/02/2026 | 2026 SwimMAC IMX Winter Invite Copied | ||
| 1535 | Felipe Costa | 48.41 | 10 | B: 48.29 (+0.12s | 0.2%) | Unattached | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | ||
| 1536 | Henry Hu | 48.41 | 10 | B: 48.29 (+0.12s | 0.2%) | Gator Swim Club | 01/30/2026 | 2026 FAST February Helping Hands Invite | ||
| 1537 | Ryan Du | 48.42 | 9 | B: 48.29 (+0.13s | 0.3%) | First Colony Swim Team, Inc. | 01/19/2025 | 2025 FCST January Developmental Meet | ||
| 1538 | Hunter Nguyen | 48.42 | 8 | B: 48.29 (+0.13s | 0.3%) | Power for Life | 02/21/2025 | 2025 Gulf 12 Under Champs (KATY) | ||
| 1539 | Arjun Saripalle | 48.42 | 10 | B: 48.29 (+0.13s | 0.3%) | Nitro Swimming | 10/18/2026 | 2026 ST TXLA 10 U Fall Kick Off Invite | ||
| 1540 | Greyson Mullins | 48.43 | 8 | B: 48.29 (+0.14s | 0.3%) | Huntsville Swim Association | 10/17/2025 | 2025 HSA Fran Norris Meet | ||
| 1541 | Oliver Lawson-Boothby | 48.43 | 9 | B: 48.29 (+0.14s | 0.3%) | Haines City Tritons | 05/02/2026 | 2026 Berkeley May Day | ||
| 1542 | Jordan Mosbo | 48.44 | 8 | B: 48.29 (+0.15s | 0.3%) | Team Charlotte Swimming | 02/14/2026 | 2026 SwimMAC Qualifier Festival | ||
| 1543 | Keegan Song | 48.45 | 8 | B: 48.29 (+0.16s | 0.3%) | Tac Titans | 05/02/2026 | 2026 TAC TITANS Oceanus Challenge Meet | ||
| 1544 | Abram Hanna | 48.46 | 9 | B: 48.29 (+0.17s | 0.4%) | Jupiter Dragons Swim Team | 06/27/2026 | Firecracker Meet 2026 | ||
| 1545 | Thomas Leiby | 48.46 | 9 | B: 48.29 (+0.17s | 0.4%) | Planet Swim Aquatics | 09/20/2026 | 2026 Planet Swim Season Opener | ||
| 1546 | Platon Merkulov | 48.46 | 9 | B: 48.29 (+0.17s | 0.4%) | Bravo Swim Team | 10/10/2026 | NMST BMHG October Invite 26 | ||
| 1547 | Diego Lechuga | 48.47 | 8 | B: 48.29 (+0.18s | 0.4%) | EL Paso Border Land Swim Team | 09/20/2026 | 2026 BD Del Norte #1 | ||
| 1548 | Angel Munoz | 48.48 | 9 | B: 48.29 (+0.19s | 0.4%) | City of Miami Parks Swim Team | 08/22/2026 | NMST Relay Invite 26 | ||
| 1549 | Joseph Martin | 48.48 | 9 | B: 48.29 (+0.19s | 0.4%) | Nitro Swimming | 01/31/2026 | 2026 ST NTRO Fiery Flames | ||
| 1550 | Krithvik Rajaram | 48.48 | 6 | B: 48.29 (+0.19s | 0.4%) | Waterloo Swimming | 10/18/2026 | 2026 ST TXLA 10 U Fall Kick Off Invite | ||
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.