USA Girls 10 & under - 50 M Breast
These rankings show the swimmers' placement within the United States.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1551 | Lillie Marcus | 54.03 | 9 | BB Min | A: 48.79 (+5.24s | 9.7%) | West Florida Lightning Aquatic | 06/19/2026 | 2026 Lightning Invitational | |
| 1552 | Mira Halecki | 54.03 | 10 | BB Min | A: 48.79 (+5.24s | 9.7%) | Laker Swim | 04/11/2026 | 2026 Ron Nardozzi Pre Derby Sprint Invite C | |
| 1553 | Charlotte Struble | 54.03 | 8 | BB Min | A: 48.79 (+5.24s | 9.7%) | Sea Devils | 05/28/2026 | 2026 MN WOLF HUFF N PUFF INVITE | |
| 1554 | Lillian Shaffer | 54.03 | 10 | BB Min | A: 48.79 (+5.24s | 9.7%) | South Lake Aquatic Club | 07/25/2026 | SEA Pirate Plunge 2026 | |
| 1555 | Zoe Bowman | 54.03 | 10 | BB Min | A: 48.79 (+5.24s | 9.7%) | Pikes Peak Athletics | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 1556 | Sarah He | 54.04 | 10 | BB Min | A: 48.79 (+5.25s | 9.7%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 1557 | Khloe Rehbein | 54.04 | 8 | BB Min | A: 48.79 (+5.25s | 9.7%) | Stingrays Swim Team | 05/01/2026 | 2026 Helen Wang Sunflower Classic | |
| 1558 | Ellise Guillotel | 54.05 | 10 | BB Min | A: 48.79 (+5.26s | 9.7%) | Foxjets Swim Team | 06/11/2026 | 2026 MN AQJT Aquajets Summer Spectacular | |
| 1559 | Mary Laux | 54.05 | 10 | BB Min | A: 48.79 (+5.26s | 9.7%) | Nova of Virginia | 05/15/2026 | NOVA Spring Splash | |
| 1560 | Anyeline Hernandez Gonzalez | 54.05 | 10 | BB Min | A: 48.79 (+5.26s | 9.7%) | Lake Lytal Lightning | 06/05/2026 | 2026 TAMPA BAY SWIM CLASSIC | |
| 1561 | Penelope Arias | 54.05 | 9 | BB Min | A: 48.79 (+5.26s | 9.7%) | Seattle Metropolitan Aquatic C | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 1562 | Elizabeth Ferris | 54.06 | 10 | BB Min | A: 48.79 (+5.27s | 9.7%) | South Metro Storm | 07/17/2026 | 2026 MN STRM Minnesota Regional Championship | |
| 1563 | Isabelle Deal | 54.07 | 10 | BB Min | A: 48.79 (+5.28s | 9.8%) | Cincinnati Marlins | 06/05/2026 | 25th Annual CLPR David Webb Meet | |
| 1564 | Gabrielle Fankhauser | 54.07 | 10 | BB Min | A: 48.79 (+5.28s | 9.8%) | Greater Toledo Aquatic Club | 07/23/2026 | 2026 OH LC Junior Championships | |
| 1565 | Isabel Serrat | 54.07 | 10 | BB Min | A: 48.79 (+5.28s | 9.8%) | Thundering Herd Aquatics | 05/15/2026 | Kentucky Aquatics Derby Classic | |
| 1566 | Freya Carlson | 54.07 | 10 | BB Min | A: 48.79 (+5.28s | 9.8%) | Heart of Texas Swim Team | 05/08/2026 | 2026 ST ASC Cinco De Mayo | |
| 1567 | Lacey Durden | 54.08 | 10 | BB Min | A: 48.79 (+5.29s | 9.8%) | Riptide Aquatics | 06/06/2025 | 2025 TAMPA BAY SWIM CLASSIC | |
| 1568 | Ruby Zalewski | 54.08 | 9 | BB Min | A: 48.79 (+5.29s | 9.8%) | Univ. of Denver Hilltoppers | 07/11/2026 | 2026 CO SBL Summer Sizzler | |
| 1569 | Sonia Albarran | 54.08 | 8 | BB Min | A: 48.79 (+5.29s | 9.8%) | Fenix Swim Club | 07/10/2026 | 2026 FG LCM BB Champs South | |
| 1570 | Harper Nguyen | 54.09 | 8 | BB Min | A: 48.79 (+5.30s | 9.8%) | Columbia Aquatics Association | 07/17/2026 | 2026 MD Long Course Last Chance Meet | |
| 1571 | Peyton Zhou | 54.09 | 10 | BB Min | A: 48.79 (+5.30s | 9.8%) | Waterloo Swimming | 04/18/2026 | 2026 ST ASC LC Kickoff | |
| 1572 | Catherine Ye | 54.10 | 10 | BB Min | A: 48.79 (+5.31s | 9.8%) | Commonwealth Swimming | 05/16/2026 | 2026 NE CS Spring Fever | |
| 1573 | Molly Schewe | 54.10 | 10 | BB Min | A: 48.79 (+5.31s | 9.8%) | Lakeside Swim Team | 06/04/2026 | 98th Ohio Valley Championships 2026 | |
| 1574 | Sophia Bogan | 54.10 | 10 | BB Min | A: 48.79 (+5.31s | 9.8%) | Retriever Aquatic Club | 07/24/2026 | 2026 Maryland Long Course Junior Championship | |
| 1575 | Sterling Sayce | 54.10 | 10 | BB Min | A: 48.79 (+5.31s | 9.8%) | Commonwealth Swimming | 06/12/2026 | 2026 NE CS Summer Solstice | |
| 1576 | Jihyeon Yoon | 54.11 | 10 | BB Min | A: 48.79 (+5.32s | 9.8%) | Auburn Aquatics | 06/26/2026 | 2026 SE Richard Quick Invitational | |
| 1577 | Adley Walsh | 54.11 | 10 | BB Min | A: 48.79 (+5.32s | 9.8%) | Revolution Swim Club | 06/12/2026 | 2026 NE CS Summer Solstice | |
| 1578 | Madelyn McNellis | 54.11 | 9 | BB Min | A: 48.79 (+5.32s | 9.8%) | Missoula YMCA Swim Team | 07/10/2026 | 2026 MT HLST Last Chance Invitational | |
| 1579 | Reese Storey | 54.11 | 9 | BB Min | A: 48.79 (+5.32s | 9.8%) | Blue Dolfins | 05/15/2026 | 2026 PA Long Course Invite | |
| 1580 | Kirsten Peredo | 54.11 | 9 | BB Min | A: 48.79 (+5.32s | 9.8%) | South San Francisco Aquatics | 06/12/2026 | BAC Long Course | |
| 1581 | Eloise Chau | 54.12 | 10 | BB Min | A: 48.79 (+5.33s | 9.8%) | Sarasota Tsunami Swim Team | 06/07/2025 | 2025 SRQ SUMMER AGE GROUP MEET | |
| 1582 | Sunny Schwarts | 54.12 | 9 | BB Min | A: 48.79 (+5.33s | 9.8%) | Tac Titans | 07/24/2026 | 2026 TAC TITANS Closeout Meet | |
| 1583 | Lauren Hunter | 54.12 | 9 | BB Min | A: 48.79 (+5.33s | 9.8%) | Loyola Blakefield Aquatics | 07/29/2026 | 2026 MD LSC LC Championship | |
| 1584 | Ella Melancon | 54.13 | 10 | BB Min | A: 48.79 (+5.34s | 9.9%) | Coronado Swim -team Elite | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 1585 | Norah Lee | 54.13 | 9 | BB Min | A: 48.79 (+5.34s | 9.9%) | City of Mobile Swim Associatio | 06/13/2026 | Spirit Of Mobile | |
| 1586 | Peyton Lintereur | 54.14 | 9 | BB Min | A: 48.79 (+5.35s | 9.9%) | Riptide Swim Team | 06/05/2026 | 2026 MN NSAC Summer Invite | |
| 1587 | Riley Wonderly | 54.15 | 9 | BB Min | A: 48.79 (+5.36s | 9.9%) | Tsunami Swimming | 05/01/2026 | 2026 Helen Wang Sunflower Classic | |
| 1588 | Mae White | 54.15 | 10 | BB Min | A: 48.79 (+5.36s | 9.9%) | Racers Swim Club | 05/30/2025 | Hydro4 Summer Open | |
| 1589 | Isabel Kibler | 54.15 | 9 | BB Min | A: 48.79 (+5.36s | 9.9%) | Battlefield Area Star Swimmers | 06/26/2026 | 2026 VSI LC Northern District Champs | |
| 1590 | Jane Cheng | 54.15 | 10 | BB Min | A: 48.79 (+5.36s | 9.9%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 1591 | Roxana Paku | 54.16 | 9 | BB Min | A: 48.79 (+5.37s | 9.9%) | SwimMAC Carolina | 06/19/2026 | GSA 70th Annual Eastern Invitational | |
| 1592 | Vivian Vozella | 54.16 | 8 | BB Min | A: 48.79 (+5.37s | 9.9%) | Crimson Aquatics | 06/12/2026 | 2026 NE CS Summer Solstice | |
| 1593 | Karina XU | 54.17 | 9 | BB Min | A: 48.79 (+5.38s | 9.9%) | Nation\\\\\\'s Capital Swim Club | 05/01/2026 | Speedo Spring Splash | |
| 1594 | Whitney Difani | 54.17 | 9 | BB Min | A: 48.79 (+5.38s | 9.9%) | Parkway-Rockwood Gateway Swim | 06/26/2026 | 88th CSP Summer Invitational | |
| 1595 | Lexi Ropp | 54.17 | 8 | BB Min | A: 48.79 (+5.38s | 9.9%) | Huber Heights YMCA | 07/23/2026 | 2026 OH LC Junior Championships | |
| 1596 | Delaney Durcan | 54.17 | 9 | BB Min | A: 48.79 (+5.38s | 9.9%) | Univ. of Denver Hilltoppers | 06/26/2026 | 2026 CO Zone 2 District Meet DU | |
| 1597 | Audrey Kelty | 54.17 | 9 | BB Min | A: 48.79 (+5.38s | 9.9%) | Portland Aquatic Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 1598 | Naima Akhmed | 54.18 | 10 | BB Min | A: 48.79 (+5.39s | 9.9%) | Mason Manta Rays | 07/23/2026 | 2026 OH LC Junior Championships | |
| 1599 | Lila Sadaya | 54.19 | 9 | BB Min | A: 48.79 (+5.40s | 10.0%) | Hawaii Swimming Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 1600 | Amelia Gunn | 54.19 | 8 | BB Min | A: 48.79 (+5.40s | 10.0%) | Lynchburg Aquatic Club | 05/01/2026 | 2026 HOKI May Day Invite Copied | |
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.