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USA Boys 10 & under - 100 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
301 Lev Petrovskii 1:28.96 9 A Min AA: 1:28.19 (+0.77s | 0.9%) Swim Fort Lauderdale 06/17/2026 Swim Fort Lauderdale Speedo Summer Classic 26
302 Cole Proescher 1:28.97 10 A Min AA: 1:28.19 (+0.78s | 0.9%) Orinda Aquatics 06/13/2026 Orinda PC LC AG C B BB+
303 Zachary Mokhiber 1:28.97 10 A Min AA: 1:28.19 (+0.78s | 0.9%) T2 Aquatics 07/10/2025 2025 FL Summer Age Group Championships
50 Back
43.07
43.07
100 Back
45.90
1:28.97
100 Back
1:28.97
304 Jack Armbruster 1:28.98 10 A Min AA: 1:28.19 (+0.79s | 0.9%) San Clemente Aquatic Team 07/24/2025 2025 CA SCS RAA Summer A G Champs
50 Back
43.48
43.48
100 Back
45.50
1:28.98
100 Back
1:28.98
305 Elliott Ganancial 1:28.98 10 A Min AA: 1:28.19 (+0.79s | 0.9%) Hawaii Swimming Club 07/03/2026 2026 Keo Nakama Swim Meet
306 Tyler Zhu 1:28.99 10 A Min AA: 1:28.19 (+0.80s | 0.9%) Arctic Aquatics 04/11/2026 2026 NE CS Season Opener
50 Back
44.10
44.10
100 Back
44.89
1:28.99
100 Back
1:28.99
307 Chandler Lourie 1:29.03 10 A Min AA: 1:28.19 (+0.84s | 0.9%) Life Time Southeast Swim Team 06/06/2026 2026 Jack Barnasastle Invitational
308 Caleb Nash 1:29.08 10 A Min AA: 1:28.19 (+0.89s | 1.0%) Old North State Aquatics 06/25/2026 ONSA Independence Invitational Copied
50 Back
45.00
45.00
100 Back
44.08
1:29.08
100 Back
1:29.08
309 Isaac Camenisch 1:29.11 10 A Min AA: 1:28.19 (+0.92s | 1.0%) Highbridge Aquatics 06/05/2026 25th Annual CLPR David Webb Meet
50 Back
43.67
43.67
100 Back
45.44
1:29.11
100 Back
1:29.11
310 Alexander Hammerschmidt 1:29.12 10 A Min AA: 1:28.19 (+0.93s | 1.0%) The Western Mass Aquadogs 06/26/2026 2026 NE SUN Summer Solstice
50 Back
42.25
42.25
100 Back
46.87
1:29.12
100 Back
1:29.12
311 Rishan Shah 1:29.14 9 A Min AA: 1:28.19 (+0.95s | 1.1%) United Swim Club 06/26/2026 2026 NE NSSC June 26 28 MIT Invitational
312 Ivan Zhao 1:29.16 8 A Min AA: 1:28.19 (+0.97s | 1.1%) Southwest Stars Swim Club 06/11/2026 2026 RAFC Summer Solstice Invitational
50 Back
43.81
43.81
100 Back
45.35
1:29.16
100 Back
1:29.16
313 Bennett Upton 1:29.20 9 A Min AA: 1:28.19 (+1.01s | 1.1%) Greensboro Community YMCA 06/26/2026 2026 USRY LC Championships
314 Devin Song 1:29.20 9 A Min AA: 1:28.19 (+1.01s | 1.1%) Rose Bowl Aquatics 06/11/2026 2026 SCS June AG Invite CANY
50 Back
44.11
44.11
100 Back
45.09
1:29.20
100 Back
1:29.20
315 Koki Tsujiuchi 1:29.25 10 A Min AA: 1:28.19 (+1.06s | 1.2%) Huntsville Swim Association 05/16/2026 NAC LC May Classic
50 Back
42.67
42.67
100 Back
46.58
1:29.25
100 Back
1:29.25
316 Owen McDonald 1:29.25 10 A Min AA: 1:28.19 (+1.06s | 1.2%) Houston Hydra 06/05/2026 2026 ST SRG Arena Surge Shark Sizzler
50 Back
43.19
43.19
100 Back
46.06
1:29.25
100 Back
1:29.25
317 Eamon Balch 1:29.28 10 A Min AA: 1:28.19 (+1.09s | 1.2%) La Mirada Armada 06/11/2026 ARMADA 2026 SCS June AG Invite
318 Kyrie Song 1:29.31 9 A Min AA: 1:28.19 (+1.12s | 1.3%) SwimMAC Carolina 05/01/2026 2026 NC SwimMAC Spring Splash
50 Back
43.43
43.43
100 Back
45.88
1:29.31
100 Back
1:29.31
319 Finn Peters 1:29.31 10 A Min AA: 1:28.19 (+1.12s | 1.3%) Swim Florida 06/19/2026 2026 GCST MARK MCCAW SUMMER INVITE
50 Back
44.51
44.51
100 Back
44.80
1:29.31
100 Back
1:29.31
320 Lucas Ferguson 1:29.31 10 A Min AA: 1:28.19 (+1.12s | 1.3%) Aquatic Team Of Mecklenburg 04/17/2026 April 17 ATOM Friday Night Lights
50 Back
43.10
43.10
100 Back
46.21
1:29.31
100 Back
1:29.31
321 William Skolnick 1:29.32 9 A Min AA: 1:28.19 (+1.13s | 1.3%) SwimAtlanta 06/18/2026 2026 Tennessee Aquatics June Invitational
50 Back
43.42
43.42
100 Back
45.90
1:29.32
100 Back
1:29.32
322 William Dailey 1:29.32 10 A Min AA: 1:28.19 (+1.13s | 1.3%) Lakeside Swim Team 05/15/2026 2026 Triton Summer Launch
50 Back
43.30
43.30
100 Back
46.02
1:29.32
100 Back
1:29.32
323 Timur Kochmar 1:29.34 9 A Min AA: 1:28.19 (+1.15s | 1.3%) SwimRight Team 04/25/2026 2026 Azura Spring Open LCM Invit
324 Mike Semenov 1:29.35 10 A Min AA: 1:28.19 (+1.16s | 1.3%) Beach Cities Alpha 06/11/2026 ARMADA 2026 SCS June AG Invite
325 Micah Kusbel 1:29.36 10 A Min AA: 1:28.19 (+1.17s | 1.3%) Southwest Aquatic Warriors 05/15/2026 2026 ST NIST Salute To The Troops
50 Back
43.15
43.15
100 Back
46.21
1:29.36
100 Back
1:29.36
326 Kai Kennedy 1:29.37 10 A Min AA: 1:28.19 (+1.18s | 1.3%) Academy Swim Club 05/16/2026 BIG ISLAND SWIMMING @ KCAC
327 Leon Yan 1:29.40 9 A Min AA: 1:28.19 (+1.21s | 1.4%) Waterloo Swimming 06/26/2026 2026 NEAT Long Course STX Championship
50 Back
44.59
44.59
100 Back
44.81
1:29.40
100 Back
1:29.40
328 Tatsumasa Sekine 1:29.43 9 A Min AA: 1:28.19 (+1.24s | 1.4%) Santa Clara Swim Club 05/22/2026 2026 Zone 1 South Firecracker 400
329 Alexander Bond 1:29.47 10 A Min AA: 1:28.19 (+1.28s | 1.4%) Evolution Racing Club 06/11/2026 2026 SCS June AG Invite
50 Back
43.71
43.71
100 Back
45.76
1:29.47
100 Back
1:29.47
330 August Rothgerber 1:29.49 10 A Min AA: 1:28.19 (+1.30s | 1.5%) Lakeside Swim Team 05/15/2026 2026 Triton Summer Launch
50 Back
41.50
41.50
100 Back
47.99
1:29.49
100 Back
1:29.49
331 Luiz Laurentino 1:29.49 10 A Min AA: 1:28.19 (+1.30s | 1.5%) YMCA of the Triangle Area Swim 05/15/2026 2026 EAC Memorial Invite
50 Back
43.83
43.83
100 Back
45.66
1:29.49
100 Back
1:29.49
332 Easson Ji 1:29.52 9 A Min AA: 1:28.19 (+1.33s | 1.5%) Xtreme Swim Club 04/24/2026 2026 NE NSSC 4 24 26 Specialty Meet
333 James Ludington 1:29.58 10 A Min AA: 1:28.19 (+1.39s | 1.6%) Carolina Aquatic Team 06/18/2026 2026 Tennessee Aquatics June Invitational
50 Back
43.65
43.65
100 Back
45.93
1:29.58
100 Back
1:29.58
334 Daniel Thorpe 1:29.59 10 A Min AA: 1:28.19 (+1.40s | 1.6%) Aquajets Swim Team 06/11/2026 2026 MN AQJT Aquajets Summer Spectacular
50 Back
43.13
43.13
100 Back
46.46
1:29.59
100 Back
1:29.59
335 Mason Nordin 1:29.60 10 A Min AA: 1:28.19 (+1.41s | 1.6%) Foxjets Swim Team 06/19/2026 2026 MN MAN Red White Blue Invite Copied
50 Back
42.85
42.85
100 Back
46.75
1:29.60
100 Back
1:29.60
336 Savelii Dorofieiev 1:29.60 10 A Min AA: 1:28.19 (+1.41s | 1.6%) Saint Petersburg Aquatics 06/05/2026 2026 TAMPA BAY SWIM CLASSIC
50 Back
45.62
45.62
100 Back
43.98
1:29.60
100 Back
1:29.60
337 Marcus Burger 1:29.60 10 A Min AA: 1:28.19 (+1.41s | 1.6%) SwimMAC Carolina 06/19/2026 GSA 70th Annual Eastern Invitational
50 Back
44.25
44.25
100 Back
45.35
1:29.60
100 Back
1:29.60
338 Jacob Stanwix 1:29.62 10 A Min AA: 1:28.19 (+1.43s | 1.6%) Nova of Virginia 06/11/2026 NOVA 2026 Virginia Commonwealth Games
339 Shay Jain 1:29.67 9 A Min AA: 1:28.19 (+1.48s | 1.7%) Palo Alto Stanford Aquatics 06/12/2026 2026 DACA LC CBA Meet
340 Benjamin Turner 1:29.68 10 A Min AA: 1:28.19 (+1.49s | 1.7%) Nova of Virginia 05/15/2026 NOVA Spring Splash
341 Randall Plaisance 1:29.68 9 A Min AA: 1:28.19 (+1.49s | 1.7%) Opelika Swim Team 06/05/2026 2026 GPAC Tom Lalor Invitational
50 Back
42.80
42.80
100 Back
46.88
1:29.68
100 Back
1:29.68
342 William Bradley 1:29.70 9 A Min AA: 1:28.19 (+1.51s | 1.7%) Nova of Virginia 04/17/2026 NOVA Long Course Kick Off
50 Back
43.72
43.72
100 Back
45.98
1:29.70
100 Back
1:29.70
343 Oliver Chafin 1:29.70 10 A Min AA: 1:28.19 (+1.51s | 1.7%) SwimMAC Carolina 06/26/2026 Sharks Aquatic Club Last Chance Qualifier
50 Back
43.83
43.83
100 Back
45.87
1:29.70
100 Back
1:29.70
344 Aaron Luswata 1:29.80 10 A Min AA: 1:28.19 (+1.61s | 1.8%) Cypress Fairbanks Swim Club 06/12/2026 2026 ST TXLA Texas Open Invite
50 Back
43.18
43.18
100 Back
46.62
1:29.80
100 Back
1:29.80
345 William Sun 1:29.81 10 A Min AA: 1:28.19 (+1.62s | 1.8%) Coast Gaurd Blue Dolphins 06/11/2026 NOVA 2026 Virginia Commonwealth Games
346 Jaezyn Magnaye 1:29.82 10 A Min AA: 1:28.19 (+1.63s | 1.8%) Tualatin Hills Swim Club 06/12/2026 2026 THSC June Open
50 Back
44.12
44.12
100 Back
45.70
1:29.82
100 Back
1:29.82
347 William Peterworth 1:29.82 9 A Min AA: 1:28.19 (+1.63s | 1.8%) Lakeside Swim Team 05/15/2026 2026 Triton Summer Launch
50 Back
42.24
42.24
100 Back
47.58
1:29.82
100 Back
1:29.82
348 Miro Wang 1:29.88 10 A Min AA: 1:28.19 (+1.69s | 1.9%) Santa Clara Swim Club 05/22/2026 2026 Zone 1 South Firecracker 400
349 Muyang He 1:29.90 9 A Min AA: 1:28.19 (+1.71s | 1.9%) Santa Clara Swim Club 05/22/2026 2026 Zone 1 South Firecracker 400
350 Ashton Chen 1:29.90 10 A Min AA: 1:28.19 (+1.71s | 1.9%) Brea Aquatics 06/11/2026 ARMADA 2026 SCS June AG Invite

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.