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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1051 | Noah Chiu | 45.34 | 10 | BB Min | A: 43.09 (+2.25s | 5.0%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 1052 | Julian Kreth | 45.34 | 8 | BB Min | A: 43.09 (+2.25s | 5.0%) | Tualatin Hills Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 1053 | Sebastian Alfonso | 45.35 | 10 | BB Min | A: 43.09 (+2.26s | 5.0%) | Walnut Creek Aquabears | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 1054 | David Suchkov | 45.35 | 10 | BB Min | A: 43.09 (+2.26s | 5.0%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 1055 | Colin Doherty | 45.36 | 10 | BB Min | A: 43.09 (+2.27s | 5.0%) | Huntsville Swim Association | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 1056 | Henry Odean | 45.36 | 10 | BB Min | A: 43.09 (+2.27s | 5.0%) | Nitro Swimming | 06/11/2026 | 2026 ST NIST George Block Invitational | |
| 1057 | Tristan Virone | 45.36 | 10 | BB Min | A: 43.09 (+2.27s | 5.0%) | Huntsville Swim Association | 04/18/2026 | HSA April LC Meet | |
| 1058 | Mauricio Sanmartin | 45.37 | 10 | BB Min | A: 43.09 (+2.28s | 5.0%) | Fontana Aquatics Club | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 1059 | Charles Gochenour | 45.37 | 10 | BB Min | A: 43.09 (+2.28s | 5.0%) | Virginia Gators | 06/11/2026 | NOVA 2026 Virginia Commonwealth Games | |
| 1060 | Anders Liljenberg | 45.37 | 9 | BB Min | A: 43.09 (+2.28s | 5.0%) | East Hartford YMCA | 06/20/2026 | 2026 NE NSSC Invitational Springfield College | |
| 1061 | Flynn Chen | 45.38 | 10 | BB Min | A: 43.09 (+2.29s | 5.0%) | DeAnza Cupertino Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 1062 | Elijah Leshchenko | 45.39 | 10 | BB Min | A: 43.09 (+2.30s | 5.1%) | Patriot Aquatics | 06/26/2026 | 2026 Planet Swim Summer Championships | |
| 1063 | Houston Coghill | 45.40 | 10 | BB Min | A: 43.09 (+2.31s | 5.1%) | SwimEnergy Aquatics | 06/19/2026 | 2026 GCST MARK MCCAW SUMMER INVITE | |
| 1064 | Smith Mitchell | 45.40 | 8 | BB Min | A: 43.09 (+2.31s | 5.1%) | New Wave Swim Team | 04/25/2026 | 2026 WAVE Sprint Into LC | |
| 1065 | Massimo Sclafani | 45.40 | 9 | BB Min | A: 43.09 (+2.31s | 5.1%) | Webbs Tornadoes Swim Team | 07/31/2026 | 2026 NE NSSC New England Summer Championship | |
| 1066 | Lincoln Estrella | 45.41 | 9 | BB Min | A: 43.09 (+2.32s | 5.1%) | Flatiron Athletic Club | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 1067 | Jackson Macaluso | 45.41 | 10 | BB Min | A: 43.09 (+2.32s | 5.1%) | Tampa Elite Aquatics | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 1068 | Nicolas Matteo | 45.42 | 10 | BB Min | A: 43.09 (+2.33s | 5.1%) | Nation\\\\\\'s Capital Swim Club | 05/01/2026 | Speedo Spring Splash | |
| 1069 | Mark Chechuy | 45.42 | 10 | BB Min | A: 43.09 (+2.33s | 5.1%) | South Orange County Aquatics | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 1070 | Rylan Brill | 45.42 | 10 | BB Min | A: 43.09 (+2.33s | 5.1%) | Colorado Stingrays Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 1071 | Nathan West | 45.43 | 10 | BB Min | A: 43.09 (+2.34s | 5.2%) | Carmel Swim Club | 06/04/2026 | 98th Ohio Valley Championships 2026 | |
| 1072 | Theodore Gardner | 45.43 | 10 | BB Min | A: 43.09 (+2.34s | 5.2%) | SwimMAC Carolina | 07/24/2026 | 2026 NC SwimMAC LC Summer Sun Sational | |
| 1073 | Jude Larson | 45.43 | 10 | BB Min | A: 43.09 (+2.34s | 5.2%) | Unattached | 06/19/2026 | 2026 MultiCultural Zones | |
| 1074 | Henry Fredericks | 45.43 | 9 | BB Min | A: 43.09 (+2.34s | 5.2%) | COSA Swimming | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 1075 | Jacob Ethier | 45.44 | 10 | BB Min | A: 43.09 (+2.35s | 5.2%) | United Swim Club | 05/15/2026 | 2026 NE YNS May Specialty Meet | |
| 1076 | Keaton Tanner | 45.44 | 10 | BB Min | A: 43.09 (+2.35s | 5.2%) | Firefish Aquatics | 06/05/2026 | HNVR Storm Surge 2026 | |
| 1077 | Locke Kane | 45.44 | 10 | BB Min | A: 43.09 (+2.35s | 5.2%) | Lahaina Swim Club | 06/13/2026 | 2026 MAGSA LCM B 2 Meet | |
| 1078 | Jimmy Zheng | 45.44 | 8 | BB Min | A: 43.09 (+2.35s | 5.2%) | Tac Titans | 05/22/2026 | 2026 TAC TITANS Memorial Day Meet | |
| 1079 | Jackson Porter | 45.44 | 10 | BB Min | A: 43.09 (+2.35s | 5.2%) | Stingray Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 1080 | Marcus Pass | 45.44 | 10 | BB Min | A: 43.09 (+2.35s | 5.2%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 1081 | Anthony Sieiro | 45.45 | 8 | BB Min | A: 43.09 (+2.36s | 5.2%) | Blue Marlins Of Hialeah Garden | 07/10/2026 | 2026 FG LCM BB Champs South | |
| 1082 | Iker Ruiz Chacon | 45.46 | 10 | BB Min | A: 43.09 (+2.37s | 5.2%) | Tigres Uanl | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 1083 | Porter Harris | 45.46 | 9 | BB Min | A: 43.09 (+2.37s | 5.2%) | Memphis Tiger Swimming | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 1084 | Ethan Piorkowski | 45.47 | 10 | BB Min | A: 43.09 (+2.38s | 5.2%) | Bolles School Sharks | 07/24/2026 | 2026 Area 1 LCM Championships | |
| 1085 | Beau Reetz | 45.48 | 8 | BB Min | A: 43.09 (+2.39s | 5.3%) | Lakeside Swim Team | 06/04/2026 | 98th Ohio Valley Championships 2026 | |
| 1086 | Sebastian Aguayo | 45.48 | 9 | BB Min | A: 43.09 (+2.39s | 5.3%) | Unattached | 06/19/2026 | 2026 MultiCultural Zones | |
| 1087 | Logan Yip | 45.48 | 10 | BB Min | A: 43.09 (+2.39s | 5.3%) | South San Francisco Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 1088 | Thomas Comport | 45.49 | 8 | BB Min | A: 43.09 (+2.40s | 5.3%) | Highbridge Aquatics | 06/05/2026 | 25th Annual CLPR David Webb Meet | |
| 1089 | John Golightly | 45.51 | 9 | BB Min | A: 43.09 (+2.42s | 5.3%) | Indian River Aquatics | 06/13/2026 | 2026 TCA Aaron Vaughn Memorial | |
| 1090 | Jonathan Li | 45.51 | 8 | BB Min | A: 43.09 (+2.42s | 5.3%) | Brea Aquatics | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 1091 | Conor Valdez | 45.51 | 10 | BB Min | A: 43.09 (+2.42s | 5.3%) | Greater Pensacola Aquatic Club | 07/11/2026 | 2026 GPAC Summer Finale | |
| 1092 | Killian Mann | 45.52 | 9 | BB Min | A: 43.09 (+2.43s | 5.3%) | Olympic Cascade Aquatics | 07/23/2026 | 2026 PN 12 U Long Course Championships Appro | |
| 1093 | Lincoln Brabner | 45.53 | 10 | BB Min | A: 43.09 (+2.44s | 5.4%) | Greater Pensacola Aquatic Club | 05/02/2026 | 2026 GPAC Flip Flop Invitational | |
| 1094 | Harrison Novack | 45.54 | 8 | BB Min | A: 43.09 (+2.45s | 5.4%) | Platinum Aquatics | 06/05/2026 | 2026 ST SRG Arena Surge Shark Sizzler | |
| 1095 | Matthew Kosov | 45.54 | 9 | BB Min | A: 43.09 (+2.45s | 5.4%) | Bay Club Aquatics | 07/23/2026 | 2026 SI LC AGE GROUP CHAMPIONSHIPS | |
| 1096 | Jonathan Brightwell | 45.54 | 10 | BB Min | A: 43.09 (+2.45s | 5.4%) | Wake Aquatics | 05/16/2026 | 2026 Opelika Open | |
| 1097 | Maddix Loh | 45.54 | 10 | BB Min | A: 43.09 (+2.45s | 5.4%) | Planet Swim Aquatics | 06/26/2026 | 2026 Planet Swim Summer Championships | |
| 1098 | Kyle Tang | 45.55 | 9 | BB Min | A: 43.09 (+2.46s | 5.4%) | Aquazot Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 1099 | Hayden Uran | 45.56 | 10 | BB Min | A: 43.09 (+2.47s | 5.4%) | Cypress Fairbanks Swim Club | 06/12/2026 | 2026 ST TXLA Texas Open Invite | |
| 1100 | Andrew McDonald | 45.56 | 10 | BB Min | A: 43.09 (+2.47s | 5.4%) | Mecklenburg Swim Association | 07/16/2026 | 2026 NCS LC AG Championships | |
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.