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 | |
|---|---|---|---|---|---|---|---|---|---|
| 251 | Andrei Emelianov | 40.33 | 10 | AA Min | AAA: 38.99 (+1.34s | 3.3%) | Nitro Swimming | 05/09/2026 | 2026 ST NTRO LC School S Out | |
| 252 | Michael Greenspan | 40.36 | 9 | AA Min | AAA: 38.99 (+1.37s | 3.4%) | New York Sharks Aquatics | 06/13/2026 | 2026 MAY Spring Into Summer | |
| 253 | Kort Mignery | 40.36 | 10 | AA Min | AAA: 38.99 (+1.37s | 3.4%) | Powell Crosley YMCA | 06/17/2026 | Swim Fort Lauderdale Speedo Summer Classic 26 | |
| 254 | Grayson Passarotti | 40.37 | 10 | AA Min | AAA: 38.99 (+1.38s | 3.4%) | Randolph YMCA | 07/23/2026 | 2026 NJ Swim LC Gold Championships | |
| 255 | Tayden Lebold | 40.37 | 9 | AA Min | AAA: 38.99 (+1.38s | 3.4%) | Unattached | 07/30/2026 | 2026 CZ 14 U Championship Meet IN | |
| 256 | Nathan Wang | 40.38 | 10 | AA Min | AAA: 38.99 (+1.39s | 3.4%) | Scarlet Aquatics | 07/23/2026 | 2026 NJ Swim LC Gold Championships | |
| 257 | Hengrui Cao | 40.38 | 10 | AA Min | AAA: 38.99 (+1.39s | 3.4%) | Unattached | 07/30/2026 | 2026 CZ 14 U Championship Meet IN | |
| 258 | Jett Logsdon | 40.39 | 9 | AA Min | AAA: 38.99 (+1.40s | 3.5%) | Win Tidal Wave | 06/04/2026 | 98th Ohio Valley Championships 2026 | |
| 259 | Jaden Zhao | 40.42 | 10 | BB Min | A: 37.69 (+2.73s | 6.8%) | Jersey Flyers Aquatic Club | 07/23/2026 | 2026 NJ Swim LC Gold Championships | |
| 260 | Ashton VanKeulen | 40.42 | 10 | AA Min | AAA: 38.99 (+1.43s | 3.5%) | Sioux Falls Swim Team | 07/24/2026 | 2026 SD Long Course State Championship | |
| 261 | Beckham Sleeth | 40.42 | 9 | AA Min | AAA: 38.99 (+1.43s | 3.5%) | Highlands Ranch Aquatics | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 262 | Tyler Clark | 40.43 | 10 | AA Min | AAA: 38.99 (+1.44s | 3.6%) | Unattached | 08/06/2026 | 2026 CZ 14 U Championship Meet MN | |
| 263 | Andy Wang | 40.44 | 10 | AA Min | AAA: 38.99 (+1.45s | 3.6%) | Tualatin Hills Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 264 | Wesley Kissel | 40.46 | 8 | AA Min | AAA: 38.99 (+1.47s | 3.6%) | SwimAtlanta | 06/18/2026 | 2026 Tennessee Aquatics June Invitational | |
| 265 | Justin Huang | 40.48 | 10 | AA Min | AAA: 38.99 (+1.49s | 3.7%) | Tac Titans | 06/11/2026 | 2026 CMC Triangle Classic Meet | |
| 266 | Asher Mormino | 40.49 | 10 | AA Min | AAA: 38.99 (+1.50s | 3.7%) | Bend Swim Club | 06/19/2026 | Bend Swim Club Sun Country Invite 2026 | |
| 267 | Lucas Ni | 40.50 | 9 | AA Min | AAA: 38.99 (+1.51s | 3.7%) | Makos Aquatics Club of Gainesv | 05/15/2026 | 2026 FAST May Invite | |
| 268 | Caleb Nash | 40.51 | 10 | AA Min | AAA: 38.99 (+1.52s | 3.8%) | Old North State Aquatics | 07/16/2026 | 2026 NCS LC AG Championships | |
| 269 | Drexton Dorvil | 40.51 | 10 | AA Min | AAA: 38.99 (+1.52s | 3.8%) | Southwest Stars Swim Club | 07/09/2026 | 2026 FL Summer Age Group Championships | |
| 270 | Allen Kolodny | 40.51 | 10 | AA Min | AAA: 38.99 (+1.52s | 3.8%) | Bravo Swim Team | 07/16/2026 | 2026 FGC Summer LC Age Group Championships | |
| 271 | Michael Bodnar | 40.52 | 10 | AA Min | AAA: 38.99 (+1.53s | 3.8%) | SwimAtlanta | 06/18/2026 | 2026 Tennessee Aquatics June Invitational | |
| 272 | Bennett Wort | 40.52 | 10 | AA Min | AAA: 38.99 (+1.53s | 3.8%) | Unattached | 08/06/2026 | 2026 CZ 14 U Championship Meet MN | |
| 273 | Jon Miriovsky | 40.54 | 10 | AA Min | AAA: 38.99 (+1.55s | 3.8%) | Huntsville Swim Association | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 274 | Dylan Tian | 40.56 | 9 | AA Min | AAA: 38.99 (+1.57s | 3.9%) | Santa Clara Swim Club | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 275 | William Johnson | 40.56 | 9 | AA Min | AAA: 38.99 (+1.57s | 3.9%) | Swim Florida | 07/09/2026 | 2026 FL Summer Age Group Championships | |
| 276 | Michael Cheng | 40.58 | 9 | AA Min | AAA: 38.99 (+1.59s | 3.9%) | San Dimas Aquatics | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 277 | Henry Goddard | 40.59 | 10 | AA Min | AAA: 38.99 (+1.60s | 3.9%) | Lake Oswego Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 278 | Davis Chappell | 40.59 | 10 | AA Min | AAA: 38.99 (+1.60s | 3.9%) | Coast Gaurd Blue Dolphins | 06/26/2026 | 2026 VSI LC SE District Champs | |
| 279 | Graham Greenblatt | 40.59 | 10 | AA Min | AAA: 38.99 (+1.60s | 3.9%) | Swim Streamline at Northampton | 07/16/2025 | 2025 Texas Age Group Championships | |
| 280 | Charlie Chung | 40.60 | 9 | AA Min | AAA: 38.99 (+1.61s | 4.0%) | Trident Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 281 | Theodore Herrera | 40.60 | 10 | AA Min | AAA: 38.99 (+1.61s | 4.0%) | Crimson Aquatics | 05/16/2026 | 2026 NE CS Spring Fever | |
| 282 | Jaezyn Magnaye | 40.61 | 10 | AA Min | AAA: 38.99 (+1.62s | 4.0%) | Tualatin Hills Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 283 | Alonso Andrade | 40.61 | 10 | AA Min | AAA: 38.99 (+1.62s | 4.0%) | EL Paso Border Land Swim Team | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 284 | William Peterworth | 40.61 | 9 | AA Min | AAA: 38.99 (+1.62s | 4.0%) | Lakeside Swim Team | 04/25/2026 | 2026 Triton Derby Swim Festival | |
| 285 | Muyang He | 40.64 | 10 | AA Min | AAA: 38.99 (+1.65s | 4.1%) | Santa Clara Swim Club | 07/30/2026 | Long Course Far Westerns | |
| 286 | Yupeng Wang | 40.65 | 10 | AA Min | AAA: 38.99 (+1.66s | 4.1%) | Monterey Park Manta Rays | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 287 | Lucas Jiang | 40.65 | 9 | AA Min | AAA: 38.99 (+1.66s | 4.1%) | Kingfish Swimming Medfield | 07/17/2026 | 2026 NE MST ESC LCM 12 Under Championship | |
| 288 | Thomas Shackleton | 40.66 | 10 | AA Min | AAA: 38.99 (+1.67s | 4.1%) | North Coast Aquatics | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 289 | Nicholas Brumaru | 40.67 | 10 | AA Min | AAA: 38.99 (+1.68s | 4.1%) | Olympic Cascade Aquatics | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 290 | Max Lin | 40.69 | 10 | AA Min | AAA: 38.99 (+1.70s | 4.2%) | Irvine Novaquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 291 | Elliott Johnson | 40.69 | 10 | AA Min | AAA: 38.99 (+1.70s | 4.2%) | Bellevue Club Swim Team | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 292 | Anderson Grant | 40.70 | 10 | AA Min | AAA: 38.99 (+1.71s | 4.2%) | Upper Arlington Swim Club | 07/23/2026 | 2026 OH LC Junior Championships | |
| 293 | Luiz Laurentino | 40.71 | 10 | AA Min | AAA: 38.99 (+1.72s | 4.2%) | YMCA of the Triangle Area Swim | 06/12/2026 | 2026 SwimRVA Summer Invitational | |
| 294 | Lucas Guillen | 40.71 | 9 | AA Min | AAA: 38.99 (+1.72s | 4.2%) | 757swim | 07/16/2026 | 2026 Virginia Swimming LC Age Group Champions | |
| 295 | Bode Mello | 40.71 | 10 | AA Min | AAA: 38.99 (+1.72s | 4.2%) | Excel Aquatics | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 296 | Maximilian Smith | 40.75 | 9 | AA Min | AAA: 38.99 (+1.76s | 4.3%) | Lynchburg Aquatic Club | 06/19/2026 | 2026 Firefish June Jam | |
| 297 | Terence Wu | 40.76 | 9 | AA Min | AAA: 38.99 (+1.77s | 4.3%) | Bellevue Club Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 298 | Logan Snodgrass | 40.77 | 10 | AA Min | AAA: 38.99 (+1.78s | 4.4%) | Denver Swim Academy | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 299 | Alexander Hammerschmidt | 40.81 | 10 | AA Min | AAA: 38.99 (+1.82s | 4.5%) | The Western Mass Aquadogs | 06/26/2026 | 2026 NE SUN Summer Solstice | |
| 300 | Jacob Bouchard | 40.82 | 10 | AA Min | AAA: 38.99 (+1.83s | 4.5%) | Unattached | 06/25/2026 | LC Central District Champs | |
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.