USA Boys 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1201 | James Kohler | 54.74 | 9 | B Min | BB: 49.29 (+5.45s | 10.0%) | Riptide Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1202 | Noah Chiu | 54.74 | 10 | B Min | BB: 49.29 (+5.45s | 10.0%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 1203 | Aaron im | 54.75 | 9 | B Min | BB: 49.29 (+5.46s | 10.0%) | West Coast Aquatics | 05/29/2025 | 2025 IE VS Apple Capital | |
| 1204 | Alexander Forward | 54.75 | 8 | B Min | BB: 49.29 (+5.46s | 10.0%) | San Jose Goosemonkeys | 06/27/2025 | Valley Splash | |
| 1205 | Tomas Barrios Vivas | 54.76 | 10 | B Min | BB: 49.29 (+5.47s | 10.0%) | YMCA of Central Florida | 07/24/2025 | 2025 RAFC Last Splash Invitational | |
| 1206 | Brooks Dombkowski | 54.77 | 8 | B Min | BB: 49.29 (+5.48s | 10.0%) | T2 Aquatics | 06/21/2025 | 2025 T2 June Saturday Showcase | |
| 1207 | Samuel Miller | 54.78 | 10 | B Min | BB: 49.29 (+5.49s | 10.0%) | Team Pittsburgh Elite Aquatics | 06/12/2025 | Holtrey Summer Classic | |
| 1208 | Gabriel Hawkins | 54.79 | 10 | B Min | BB: 49.29 (+5.50s | 10.0%) | Sandpoint Sharks Swim Club | 01/16/2026 | 2026 Hells Canyon Invitational | |
| 1209 | Henry Jian | 54.79 | 10 | B Min | BB: 49.29 (+5.50s | 10.0%) | Eastside Aquatic Swim Team | 07/11/2025 | 2025 THSC Summer Classic | |
| 1210 | Remington Schwartz | 54.79 | 8 | B Min | BB: 49.29 (+5.50s | 10.0%) | Swim Florida | 05/03/2025 | 2025 Sea Dragon May Open | |
| 1211 | Aleksander Zuev | 54.79 | 9 | B Min | BB: 49.29 (+5.50s | 10.0%) | Foothills Swim Team | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 1212 | Corbyn Yerks | 54.79 | 8 | B Min | BB: 49.29 (+5.50s | 10.0%) | High Tides Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1213 | Remington Kalicinski | 54.79 | 9 | B Min | BB: 49.29 (+5.50s | 10.0%) | Wave Aquatics | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 1214 | Radin Yazdan | 54.79 | 10 | B Min | BB: 49.29 (+5.50s | 10.0%) | VillaSport Swim Team | 07/11/2025 | 2025 THSC Summer Classic | |
| 1215 | Enzo Rodrigues | 54.81 | 9 | B Min | BB: 49.29 (+5.52s | 10.1%) | Longhorn Aquatics | 05/04/2025 | 2025 ST TXLA 10 U End Of School Splash | |
| 1216 | Dmitrii Volkhov | 54.81 | 10 | B Min | BB: 49.29 (+5.52s | 10.1%) | San Antonio Wave | 05/16/2025 | 2025 ST AAAA NS Salute To The Troops | |
| 1217 | Ryder McDermitt | 54.83 | 8 | B Min | BB: 49.29 (+5.54s | 10.1%) | Flatiron Athletic Club | 07/11/2025 | 2025 CO NJ Firecracker Invite | |
| 1218 | Connor Finan | 54.85 | 9 | B Min | BB: 49.29 (+5.56s | 10.1%) | Atlantic Coast Athletic Club | 07/12/2024 | 2024 CCA Summer Awards | |
| 1219 | Hunter Bruenning | 54.85 | 8 | B Min | BB: 49.29 (+5.56s | 10.1%) | Sarasota Sharks | 06/19/2025 | 2025 Shark Open | |
| 1220 | Kenneth Green | 54.89 | 9 | B Min | BB: 49.29 (+5.60s | 10.2%) | Pro Swimming | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 1221 | Bence Thomas | 54.89 | 8 | B Min | BB: 49.29 (+5.60s | 10.2%) | Gulf Coast Swim Team | 05/30/2025 | GCST Friday Night At The Races | |
| 1222 | William Oubre | 54.90 | 10 | B Min | BB: 49.29 (+5.61s | 10.2%) | Salida Cyclones | 06/27/2025 | 2025 CO Alicia Leavitt Memorial Open | |
| 1223 | Cooper McDonald | 54.90 | 8 | B Min | BB: 49.29 (+5.61s | 10.2%) | Perry Aquatic Club | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 1224 | Jacob Hernandez | 54.92 | 8 | B Min | BB: 49.29 (+5.63s | 10.3%) | Pikes Peak Athletics | 05/30/2025 | 2025 CO Barracuda Summer Sizzler Invite | |
| 1225 | Hogan Crow | 54.92 | 9 | B Min | BB: 49.29 (+5.63s | 10.3%) | Coeur D\\\\\\'alene Area Swim Team | 06/20/2025 | 2025 SWAT Summer Solstice | |
| 1226 | Lucas Seybold | 54.92 | 9 | B Min | BB: 49.29 (+5.63s | 10.3%) | Minnetonka Swim Club | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 1227 | Samuel Olvera | 54.93 | 9 | B Min | BB: 49.29 (+5.64s | 10.3%) | Boerne Elite Aquatics | 04/11/2025 | 2025 ST AAAA NS Spring Into Long Course | |
| 1228 | Nicolas Chapman | 54.93 | 10 | B Min | BB: 49.29 (+5.64s | 10.3%) | Park City Swimming | 06/27/2025 | 2nd Annual Water Dragon Open | |
| 1229 | Kai Kitamori | 54.93 | 10 | B Min | BB: 49.29 (+5.64s | 10.3%) | East Bay Bat Rays | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 1230 | Davis Chappell | 54.94 | 9 | B Min | BB: 49.29 (+5.65s | 10.3%) | Hampton Virginia Current | 05/31/2024 | 2024 Virginia Commonwealth Games | |
| 1231 | Ryan Hu | 54.94 | 8 | B Min | BB: 49.29 (+5.65s | 10.3%) | Wave Aquatics | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 1232 | Nolan Simmons | 54.95 | 10 | B Min | BB: 49.29 (+5.66s | 10.3%) | Greater Tampa Swim Association | 05/16/2025 | 2025 SAINT PETE S 2nd LONG COURSE MEET | |
| 1233 | Micah Legaspi | 54.97 | 10 | B Min | BB: 49.29 (+5.68s | 10.3%) | Seaside Aquatic Club | 05/18/2024 | San Benito Aquatics C B A+ | |
| 1234 | Elias Lien | 54.99 | 8 | B Min | BB: 49.29 (+5.70s | 10.4%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 1235 | Evan Wang | 54.99 | 9 | B Min | BB: 49.29 (+5.70s | 10.4%) | Olympic Cascade Aquatics | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 1236 | Ethan Lyu | 55.01 | 9 | B Min | BB: 49.29 (+5.72s | 10.4%) | Tri-city Channel Cats | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
| 1237 | Cohen Gould | 55.03 | 8 | B Min | BB: 49.29 (+5.74s | 10.4%) | Pikes Peak Athletics | 06/20/2025 | 2025 Falfins Long Course Open | |
| 1238 | Van Calicchio | 55.03 | 9 | B Min | BB: 49.29 (+5.74s | 10.4%) | Plantation Swim Team | 01/16/2026 | January Central Park Series | |
| 1239 | Hugo Situ | 55.07 | 9 | B Min | BB: 49.29 (+5.78s | 10.5%) | Daly City Dolphins | 06/06/2025 | BAC C B A Meet | |
| 1240 | Lehai Li | 55.08 | 10 | B Min | BB: 49.29 (+5.79s | 10.5%) | Alto Swim Club | 04/27/2024 | Alto Spring Jam | |
| 1241 | Joseph Leach | 55.08 | 9 | B Min | BB: 49.29 (+5.79s | 10.5%) | Highlands Ranch Aquatics | 04/12/2025 | 2025 CO TOPS Suburban League Pentathlon | |
| 1242 | Charles Storm | 55.10 | 8 | B Min | BB: 49.29 (+5.81s | 10.5%) | Red Wing Swim Club | 05/03/2025 | 2025 MN RSC Pentathlon | |
| 1243 | Connor Williams | 55.12 | 9 | B Min | BB: 49.29 (+5.83s | 10.6%) | Foxjets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1244 | Samuel Hoftiezer | 55.12 | 8 | B Min | BB: 49.29 (+5.83s | 10.6%) | Watertown Area Swim Club | 07/18/2025 | 2025 SD State Long Course Meet | |
| 1245 | Zachary Tan | 55.13 | 9 | B Min | BB: 49.29 (+5.84s | 10.6%) | Rochester Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1246 | Evan Doong | 55.14 | 10 | B Min | BB: 49.29 (+5.85s | 10.6%) | Sunnyvale Swim Club | 05/17/2025 | 2025 LAMV SCM C B A+ | |
| 1247 | Boaz Mccabe | 55.14 | 9 | B Min | BB: 49.29 (+5.85s | 10.6%) | Cortez Water Dragons | 05/31/2025 | 2025 CO Cortez LC Summer Open | |
| 1248 | Terence Wu | 55.16 | 9 | B Min | BB: 49.29 (+5.87s | 10.6%) | Blue Dolphin Swim Team | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 1249 | Linkon Malone | 55.17 | 9 | B Min | BB: 49.29 (+5.88s | 10.7%) | Sawtooth Aquatic Club | 05/16/2025 | 2025 Spring Fling LC Invitational | |
| 1250 | Simon Spidle | 55.18 | 9 | B Min | BB: 49.29 (+5.89s | 10.7%) | Georgia Coastal Aquatic Team | 05/23/2025 | EAJ Mayhem 2025 | |
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.