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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1001 | Amy Guo | 49.04 | 9 | BB Min | A: 43.59 (+5.45s | 11.1%) | Life Time Oregon Swim Team | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 1002 | Jade Hartley | 49.04 | 8 | BB Min | A: 43.59 (+5.45s | 11.1%) | Coeur D\\\\\\'alene Area Swim Team | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
| 1003 | Madeline Popa | 49.05 | 8 | BB Min | A: 43.59 (+5.46s | 11.1%) | Tampa Bay Aquatic Club | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 1004 | Sofia Nur | 49.05 | 10 | BB Min | A: 43.59 (+5.46s | 11.1%) | Westlake Aquatic Facility | 06/20/2025 | 2025 ST AAAA NS George Block Invite | |
| 1005 | Sienna Schenk | 49.05 | 10 | BB Min | A: 43.59 (+5.46s | 11.1%) | Boulder City Henderson Swim Te | 07/24/2025 | 2025 CA SCS Summer A G Champs CANY | |
| 1006 | Allison Wu | 49.06 | 10 | BB Min | A: 43.59 (+5.47s | 11.1%) | Aquawolves Swimming | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 1007 | Kelsey Van Wagner | 49.06 | 9 | BB Min | A: 43.59 (+5.47s | 11.1%) | YMCA of Austin Swim Alliance | 05/08/2026 | 2026 ST ASC Cinco De Mayo | |
| 1008 | Alexandra Czuczman | 49.08 | 9 | BB Min | A: 43.59 (+5.49s | 11.2%) | Aquawolves Swimming | 04/25/2025 | 2025 CO Steve Drozda LC Shotgun | |
| 1009 | Stella Deng | 49.08 | 9 | BB Min | A: 43.59 (+5.49s | 11.2%) | West Coast Aquatics | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 1010 | Kaylee Zhang | 49.08 | 9 | BB Min | A: 43.59 (+5.49s | 11.2%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 1011 | Norah Klasic | 49.09 | 10 | BB Min | A: 43.59 (+5.50s | 11.2%) | St Croix Swim Club | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 1012 | Isla Budrow | 49.09 | 9 | BB Min | A: 43.59 (+5.50s | 11.2%) | Saint Petersburg Aquatics | 05/16/2025 | 2025 SAINT PETE S 2nd LONG COURSE MEET | |
| 1013 | Anna Cohen | 49.12 | 10 | BB Min | A: 43.59 (+5.53s | 11.3%) | Alamo Heights Aquatic Club ? A | 04/18/2026 | 2026 ST NIST Spring Into Long Course | |
| 1014 | Sloane Korkuch | 49.12 | 10 | BB Min | A: 43.59 (+5.53s | 11.3%) | Wind N Sea Swim Team | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 1015 | Samvida Tengshe | 49.12 | 10 | BB Min | A: 43.59 (+5.53s | 11.3%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 1016 | Olivia Jones | 49.13 | 9 | BB Min | A: 43.59 (+5.54s | 11.3%) | SwimStrongsville | 05/31/2025 | CCS Age Group And Open Long Course Meet | |
| 1017 | Amelia Balcer | 49.14 | 10 | BB Min | A: 43.59 (+5.55s | 11.3%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 1018 | Mirabelle Bauman | 49.14 | 9 | BB Min | A: 43.59 (+5.55s | 11.3%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 1019 | Ava Hernandez | 49.16 | 9 | BB Min | A: 43.59 (+5.57s | 11.3%) | Southwest Aquatic Warriors | 05/15/2026 | 2026 ST NIST Salute To The Troops | |
| 1020 | Grace Butterfield | 49.16 | 9 | BB Min | A: 43.59 (+5.57s | 11.3%) | Riptide Swim Team | 04/25/2025 | 2025 CO Steve Drozda LC Shotgun | |
| 1021 | Ella Sun | 49.16 | 7 | BB Min | A: 43.59 (+5.57s | 11.3%) | Beaverton Area Aquatics Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 1022 | Greta Hedberg | 49.17 | 9 | BB Min | A: 43.59 (+5.58s | 11.3%) | South East Metro Sharks | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1023 | McKenna Lee | 49.18 | 10 | BB Min | A: 43.59 (+5.59s | 11.4%) | SlipStream Aquatics | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 1024 | Eloise Duncan | 49.21 | 10 | BB Min | A: 43.59 (+5.62s | 11.4%) | King Aquatic Club | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 1025 | Eliza Cartwright | 49.22 | 10 | BB Min | A: 43.59 (+5.63s | 11.4%) | Albany Aquatic Association | 05/02/2025 | 2025 AAA May LC Invitational | |
| 1026 | Dwani Handral | 49.22 | 9 | BB Min | A: 43.59 (+5.63s | 11.4%) | Nova of Virginia | 05/17/2024 | Freedom Splash | |
| 1027 | Kennedy Schull | 49.24 | 8 | BB Min | A: 43.59 (+5.65s | 11.5%) | Lake Oswego Swim Club | 04/25/2026 | GACC Spring Invitational | |
| 1028 | Avery Barron | 49.24 | 10 | BB Min | A: 43.59 (+5.65s | 11.5%) | South Shore Sails | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 1029 | Kamila Aguirre | 49.25 | 9 | BB Min | A: 43.59 (+5.66s | 11.5%) | El Paso Aqua Posse | 07/19/2024 | 2024 BD LCM Border Champs | |
| 1030 | Avery Peck | 49.25 | 10 | BB Min | A: 43.59 (+5.66s | 11.5%) | Terrapins Swim Team | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 1031 | Bella Qiao | 49.26 | 8 | BB Min | A: 43.59 (+5.67s | 11.5%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 1032 | Clover Belling | 49.26 | 10 | BB Min | A: 43.59 (+5.67s | 11.5%) | Legacy Aquatics | 11/01/2025 | Oregon City Fall Open 2025 | |
| 1033 | Maxine Fleischfresser | 49.27 | 10 | BB Min | A: 43.59 (+5.68s | 11.5%) | West Express Swim Team | 06/27/2025 | 2025 SD SFST Sanford Invite | |
| 1034 | Aria Freeman | 49.27 | 9 | BB Min | A: 43.59 (+5.68s | 11.5%) | Asphalt Green Unified Aquatics | 08/06/2025 | 2025 Summer Elite Showcase | |
| 1035 | Zoe Uchimoto | 49.27 | 10 | BB Min | A: 43.59 (+5.68s | 11.5%) | Maui Dolphins Swim Club | 04/19/2026 | 2026 MAGSA LCM A1 Meet | |
| 1036 | Evelyn Maxey | 49.27 | 10 | BB Min | A: 43.59 (+5.68s | 11.5%) | Merced Skimmers Swim Team | 04/26/2025 | Merced Skimmers Long Course Meet | |
| 1037 | Riley Luong | 49.27 | 9 | BB Min | A: 43.59 (+5.68s | 11.5%) | Fog City Hammerheads | 04/19/2025 | Alto Spring Jam Meet | |
| 1038 | Pearl Spaugy | 49.27 | 9 | BB Min | A: 43.59 (+5.68s | 11.5%) | Multnomah Athletic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 1039 | Victoria Neary | 49.27 | 10 | BB Min | A: 43.59 (+5.68s | 11.5%) | Aces Swim Club | 04/12/2025 | 2025 CO TOPS Suburban League Pentathlon | |
| 1040 | Valentina Estrada | 49.28 | 10 | BB Min | A: 43.59 (+5.69s | 11.5%) | Swim Florida | 05/02/2026 | 2026 Sea Dragon May Open | |
| 1041 | Charlee Sill | 49.28 | 9 | BB Min | A: 43.59 (+5.69s | 11.5%) | Bishop Swim Team | 07/12/2025 | 2025 Silver State Championships | |
| 1042 | Eve Koshinomi | 49.28 | 10 | BB Min | A: 43.59 (+5.69s | 11.5%) | Parrish Bull Sharks | 05/15/2026 | 2026 Kent B Holdren Memorial Meet | |
| 1043 | Lia Serkovich | 49.29 | 7 | BB Min | A: 43.59 (+5.70s | 11.6%) | Beaverton Area Aquatics Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 1044 | Runa Takahashi | 49.29 | 9 | BB Min | A: 43.59 (+5.70s | 11.6%) | West Express Swim Team | 05/08/2026 | 2026 MN STRM Spring Startup | |
| 1045 | Enid Winskowski | 49.29 | 10 | BB Min | A: 43.59 (+5.70s | 11.6%) | Hurricanes Swim Team | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 1046 | Alexa Gonzalez | 49.31 | 10 | BB Min | A: 43.59 (+5.72s | 11.6%) | Blue Marlins Of Hialeah Garden | 04/18/2026 | SCS Under The Sun Invitational | |
| 1047 | Claire Lopez | 49.31 | 10 | BB Min | A: 43.59 (+5.72s | 11.6%) | Nitro Swimming | 06/27/2025 | 2025 ST HPAC Long Course STX Championship | |
| 1048 | Emilia Chang | 49.32 | 10 | BB Min | A: 43.59 (+5.73s | 11.6%) | Burlingame Aquatics | 04/19/2025 | Alto Spring Jam Meet | |
| 1049 | Reagan Gabbard | 49.32 | 10 | BB Min | A: 43.59 (+5.73s | 11.6%) | Sarasota Sharks | 05/15/2026 | 2026 Kent B Holdren Memorial Meet | |
| 1050 | Layla Vencill | 49.33 | 8 | BB Min | A: 43.59 (+5.74s | 11.6%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
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.