USA Girls 10 & under - 50 M Back
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 51 | Miya Liang | 39.62 | 10 | AA Min | AAA: 39.49 (+0.13s | 0.3%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 52 | Annabelle Nasr | 39.63 | 10 | AA Min | AAA: 39.49 (+0.14s | 0.4%) | Cypress Fairbanks Swim Club | 07/16/2025 | 2025 Texas Age Group Championships | |
| 53 | Emily Swanson | 39.63 | 10 | AA Min | AAA: 39.49 (+0.14s | 0.4%) | Minnetonka Swim Club | 05/08/2026 | 2026 MN STRM Spring Startup | |
| 54 | Brinley Caldwell | 39.66 | 10 | AA Min | AAA: 39.49 (+0.17s | 0.4%) | Unattached | 06/12/2025 | Holtrey Summer Classic | |
| 55 | Josephine Stock | 39.70 | 10 | AA Min | AAA: 39.49 (+0.21s | 0.5%) | Lakeshore Swim Club | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 56 | Elyse Vetsch | 39.71 | 10 | AA Min | AAA: 39.49 (+0.22s | 0.6%) | Aquajets Swim Team | 05/15/2026 | 2026 MN HURR LC Spring Opener | |
| 57 | Bridget Thayer | 39.71 | 10 | AA Min | AAA: 39.49 (+0.22s | 0.6%) | Tuna Swim Club | 05/15/2026 | 2026 MN HURR LC Spring Opener | |
| 58 | Clover Nelson | 39.73 | 10 | AA Min | AAA: 39.49 (+0.24s | 0.6%) | Multnomah Athletic Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 59 | Miller Lippe | 39.75 | 10 | AA Min | AAA: 39.49 (+0.26s | 0.7%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 60 | Zhizhi Ji | 39.78 | 10 | AA Min | AAA: 39.49 (+0.29s | 0.7%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 61 | Nya Lu | 39.79 | 10 | AA Min | AAA: 39.49 (+0.30s | 0.8%) | South Orange County Aquatics | 06/12/2025 | 2025 June Age Group Invite | |
| 62 | Kaia Fullone | 39.83 | 10 | AA Min | AAA: 39.49 (+0.34s | 0.9%) | Saint Petersburg Aquatics | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 63 | Isha Pampanwar | 39.83 | 11 | AA Min | AAA: 39.49 (+0.34s | 0.9%) | A+ Swimming Team | 07/16/2025 | 2025 Texas Age Group Championships | |
| 64 | Annabel Enmon | 39.87 | 10 | AA Min | AAA: 39.49 (+0.38s | 1.0%) | Sarasota Sharks | 05/15/2026 | 2026 Kent B Holdren Memorial Meet | |
| 65 | Ava Swartzman | 40.00 | 10 | AA Min | AAA: 39.49 (+0.51s | 1.3%) | Sarasota Sharks | 05/15/2026 | 2026 Kent B Holdren Memorial Meet | |
| 66 | Celina Mu | 40.02 | 10 | AA Min | AAA: 39.49 (+0.53s | 1.3%) | Seal Beach Swim Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 67 | Ashlyn Schon | 40.05 | 10 | AA Min | AAA: 39.49 (+0.56s | 1.4%) | Golden West Swim Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 68 | Annabelle Kaufenberg | 40.09 | 10 | AA Min | AAA: 39.49 (+0.60s | 1.5%) | Aquajets Swim Team | 05/15/2026 | 2026 MN HURR LC Spring Opener | |
| 69 | Claire Johnson | 40.09 | 9 | AA Min | AAA: 39.49 (+0.60s | 1.5%) | San Gabriel Aquatics | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 70 | Amelia Joseph | 40.09 | 10 | AA Min | AAA: 39.49 (+0.60s | 1.5%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 71 | Isabella Augustensen | 40.11 | 10 | AA Min | AAA: 39.49 (+0.62s | 1.5%) | Unattached | 08/07/2024 | 2024 EZ LC Age Group Championship | |
| 72 | Mila Metzger | 40.12 | 10 | AA Min | AAA: 39.49 (+0.63s | 1.6%) | The Woodlands Swim Team | 07/16/2025 | 2025 Texas Age Group Championships | |
| 73 | Andrea Paredes Sifuentes | 40.17 | 10 | AA Min | AAA: 39.49 (+0.68s | 1.7%) | Titanes de Tym | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 74 | Carmela Allegra | 40.34 | 10 | AA Min | AAA: 39.49 (+0.85s | 2.1%) | Patriot Aquatics | 05/15/2026 | 2026 PA Long Course Invite | |
| 75 | Adrienne Rast | 40.38 | 10 | AA Min | AAA: 39.49 (+0.89s | 2.2%) | Nitro Swimming | 05/09/2026 | 2026 ST NTRO LC School S Out | |
| 76 | Vivienne Scalise | 40.41 | 10 | AA Min | AAA: 39.49 (+0.92s | 2.3%) | Team Pittsburgh Elite Aquatics | 06/12/2025 | Holtrey Summer Classic | |
| 77 | Lillian Kozina | 40.41 | 10 | AA Min | AAA: 39.49 (+0.92s | 2.3%) | Front Range Barracudas | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 78 | Scarlett Chen | 40.54 | 10 | AA Min | AAA: 39.49 (+1.05s | 2.6%) | San Ramon Valley Aquatics | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 79 | Kimberly Lee | 40.54 | 10 | AA Min | AAA: 39.49 (+1.05s | 2.6%) | Aquajets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 80 | Isla Smitson | 40.55 | 10 | AA Min | AAA: 39.49 (+1.06s | 2.6%) | Kamehameha Swim Club | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
| 81 | Eliza Mohr | 40.56 | 10 | AA Min | AAA: 39.49 (+1.07s | 2.6%) | Team Eugene Aquatics | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 82 | Alanna McGinn | 40.59 | 10 | BB Min | A: 38.39 (+2.20s | 5.4%) | South Metro Storm | 05/08/2026 | 2026 MN STRM Spring Startup | |
| 83 | Nathalie Ni | 40.60 | 11 | AA Min | AAA: 39.49 (+1.11s | 2.7%) | Pacific Sea Wolves | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 84 | Julianne Ambrozic | 40.62 | 10 | AA Min | AAA: 39.49 (+1.13s | 2.8%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 85 | Rylee Scanlon | 40.68 | 10 | AA Min | AAA: 39.49 (+1.19s | 2.9%) | Boulder City Henderson Swim Te | 07/24/2025 | 2025 CA SCS Summer A G Champs CANY | |
| 86 | Maya Razdan | 40.71 | 10 | AA Min | AAA: 39.49 (+1.22s | 3.0%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 87 | Addison Hau | 40.72 | 10 | AA Min | AAA: 39.49 (+1.23s | 3.0%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 88 | Mannat Garg | 40.73 | 10 | AA Min | AAA: 39.49 (+1.24s | 3.0%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 89 | Vera Preda | 40.76 | 10 | AA Min | AAA: 39.49 (+1.27s | 3.1%) | Swim Streamline at Northampton | 07/16/2025 | 2025 Texas Age Group Championships | |
| 90 | Oona Santos | 40.80 | 10 | AA Min | AAA: 39.49 (+1.31s | 3.2%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 91 | Charlotte Hu | 40.87 | 10 | AA Min | AAA: 39.49 (+1.38s | 3.4%) | Nitro Swimming | 05/09/2026 | 2026 ST NTRO LC School S Out | |
| 92 | Ramona Seavey | 40.90 | 10 | AA Min | AAA: 39.49 (+1.41s | 3.4%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 93 | Emma Armstrong | 40.90 | 10 | AA Min | AAA: 39.49 (+1.41s | 3.4%) | Unattached | 08/06/2025 | 2025 Western Zone Age Group Championships | |
| 94 | Kyahna Caoagdan | 40.90 | 10 | AA Min | AAA: 39.49 (+1.41s | 3.4%) | Issaquah Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 95 | Carol Whelchel | 41.02 | 10 | AA Min | AAA: 39.49 (+1.53s | 3.7%) | Hawaii Swimming Club | 05/02/2026 | 2026 MAGSA LCM B 1 Meet | |
| 96 | Emma Salum | 41.03 | 10 | AA Min | AAA: 39.49 (+1.54s | 3.8%) | Calabasas Waves | 07/24/2025 | 2025 CA SCS Summer A G Champs CANY | |
| 97 | Stephy Chen | 41.08 | 10 | AA Min | AAA: 39.49 (+1.59s | 3.9%) | Waterloo Swimming | 04/19/2026 | 2026 ST WLOO Classic | |
| 98 | Eva Williams | 41.09 | 10 | AA Min | AAA: 39.49 (+1.60s | 3.9%) | Los Angeles Swim Club | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 99 | Adelaide Watson | 41.09 | 10 | AA Min | AAA: 39.49 (+1.60s | 3.9%) | Palo Alto Stanford Aquatics | 07/11/2025 | 2025 Age Group Championships | |
| 100 | Lily Leo | 41.11 | 10 | AA Min | AAA: 39.49 (+1.62s | 3.9%) | Aquajets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
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.