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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
151 Landon Wang 1:30.66 10 A Min AA: 1:28.19 (+2.47s | 2.7%) Seattle Metropolitan Aquatic C 07/24/2025 2025 PN LC 12 U Championships
152 Matthew Winn 1:30.67 9 A Min AA: 1:28.19 (+2.48s | 2.7%) Stingray Swim Team 05/01/2026 2026 PN BC May Flowers Approved
153 Mason Stout 1:30.71 10 A Min AA: 1:28.19 (+2.52s | 2.8%) Foxjets Swim Team 05/15/2026 2026 MN HURR LC Spring Opener
50 Back
44.82
44.82
100 Back
45.89
1:30.71
100 Back
1:30.71
154 Wu Zhou 1:30.76 10 A Min AA: 1:28.19 (+2.57s | 2.8%) Arcadia Riptides Swim Club 06/12/2025 2025 SCS June AG Invite @ La Mirada Armada
155 Rowan Sargent 1:30.83 9 A Min AA: 1:28.19 (+2.64s | 2.9%) Flatiron Athletic Club 04/24/2026 2026 CO Steve Drozda LC Shotgun
50 Back
44.23
44.23
100 Back
46.60
1:30.83
100 Back
1:30.83
156 Jaezyn Magnaye 1:30.91 10 A Min AA: 1:28.19 (+2.72s | 3.0%) Tualatin Hills Swim Club 05/01/2026 2026 THSC Spring Invite
50 Back
44.47
44.47
100 Back
46.44
1:30.91
100 Back
1:30.91
157 Evan Wik 1:31.07 9 A Min AA: 1:28.19 (+2.88s | 3.2%) Southwest Stars Swim Club 05/15/2026 2026 PA Long Course Invite
50 Back
43.49
43.49
100 Back
47.58
1:31.07
100 Back
1:31.07
158 Gavin Mahrous 1:31.09 9 A Min AA: 1:28.19 (+2.90s | 3.2%) Sioux Falls Swim Team 05/09/2025 2025 SD SFST Ready For Long Course
50 Back
43.94
43.94
100 Back
47.15
1:31.09
100 Back
1:31.09
159 Juan Marquez 1:31.14 10 A Min AA: 1:28.19 (+2.95s | 3.2%) Heritage Aquatic Team 04/18/2026 SCS Under The Sun Invitational
160 Lukas Bell 1:31.21 10 A Min AA: 1:28.19 (+3.02s | 3.3%) SwimRVA 06/14/2024 SwimRVA Summer Invitational
50 Back
45.48
45.48
100 Back
45.73
1:31.21
100 Back
1:31.21
161 Marco Gonzalez 1:31.26 10 A Min AA: 1:28.19 (+3.07s | 3.4%) South Bay Aquatics 07/24/2025 2025 SI LC AG CHAMPS
162 Keegan Bertoia 1:31.29 9 A Min AA: 1:28.19 (+3.10s | 3.4%) Schertz YMCA Swim Team 05/15/2026 2026 ST SRG LCM Bud Dallmann Memorial
163 Aiden Suffel 1:31.29 10 A Min AA: 1:28.19 (+3.10s | 3.4%) Lakeshore Swim Club 07/24/2025 2025 LE Age Group And Senior LC Championships
50 Back
44.86
44.86
100 Back
46.43
1:31.29
100 Back
1:31.29
164 Harvey Zhang 1:31.39 10 A Min AA: 1:28.19 (+3.20s | 3.5%) Wave Aquatics 05/01/2026 2026 PN BC May Flowers Approved
165 Travis Ward 1:31.45 11 A Min AA: 1:28.19 (+3.26s | 3.6%) Wolverine Aquatics 07/31/2025 2025 Long Course Far Western Championship
166 Hamilton Rule 1:31.47 10 A Min AA: 1:28.19 (+3.28s | 3.6%) Unattached 08/06/2025 2025 Summer Elite Showcase
50 Back
45.00
45.00
100 Back
46.47
1:31.47
100 Back
1:31.47
167 Isaac Chapman 1:31.54 10 A Min AA: 1:28.19 (+3.35s | 3.7%) SwimRVA 05/31/2024 2024 SwimRVA Success Bell
50 Back
45.84
45.84
100 Back
45.70
1:31.54
100 Back
1:31.54
168 David Shoer 1:31.54 10 A Min AA: 1:28.19 (+3.35s | 3.7%) Patriot Aquatics 05/15/2026 2026 PA Long Course Invite
50 Back
44.86
44.86
100 Back
46.68
1:31.54
100 Back
1:31.54
169 Tripp Liberman 1:31.55 10 A Min AA: 1:28.19 (+3.36s | 3.7%) Rocky Mountain Rapids 07/25/2025 2025 CO CSI Age Group Championships
50 Back
44.84
44.84
100 Back
46.71
1:31.55
100 Back
1:31.55
170 Jerry Ji 1:31.58 10 A Min AA: 1:28.19 (+3.39s | 3.7%) Brea Aquatics 07/23/2025 2025 CA SCS Summer A G Champs
171 Eamon Balch 1:31.59 10 A Min AA: 1:28.19 (+3.40s | 3.7%) La Mirada Armada 07/23/2025 2025 CA SCS Summer A G Champs
172 Andy Tran 1:31.59 10 A Min AA: 1:28.19 (+3.40s | 3.7%) Seattle Metropolitan Aquatic C 04/24/2026 2026 PN SMAC Spring Showers LC Challenge
173 Hines Butler 1:31.64 10 A Min AA: 1:28.19 (+3.45s | 3.8%) Sarasota Sharks 04/25/2026 11th Annual Hohne Memorial Invitational
174 Phillippe Choi 1:31.70 10 A Min AA: 1:28.19 (+3.51s | 3.8%) Klg Sports Swim Team 07/24/2025 2025 CA SCS RAA Summer A G Champs
50 Back
43.69
43.69
100 Back
48.01
1:31.70
100 Back
1:31.70
175 Colt Sivells 1:31.76 10 A Min AA: 1:28.19 (+3.57s | 3.9%) Southwest Stars Swim Club 07/10/2025 2025 FL Summer Age Group Championships
50 Back
44.71
44.71
100 Back
47.05
1:31.76
100 Back
1:31.76
176 Thiago Mantilla 1:31.78 10 A Min AA: 1:28.19 (+3.59s | 3.9%) South Florida Aquatic Club 05/15/2026 2026 Gulliver LCM Summer Classic
50 Back
45.16
45.16
100 Back
46.62
1:31.78
100 Back
1:31.78
177 Luke Chai 1:31.79 9 A Min AA: 1:28.19 (+3.60s | 3.9%) Pleasanton Seahawks 06/07/2025 2025 06 07 CDST LC C B BB+ Meet
178 Wesley Ho 1:31.91 10 A Min AA: 1:28.19 (+3.72s | 4.0%) Aspire Aquatics of Colorado 04/24/2026 2026 CO Arena Catch Me If You Can
179 Johnathan Wang 1:31.93 9 A Min AA: 1:28.19 (+3.74s | 4.1%) Alto Swim Club 05/02/2026 Alto Spring Jam CBA
180 Kyle Whitley 1:31.93 10 A Min AA: 1:28.19 (+3.74s | 4.1%) Fast Falcons 05/15/2026 2026 FAST May Invite
50 Back
44.37
44.37
100 Back
47.56
1:31.93
100 Back
1:31.93
181 Ari Thorne 1:31.94 10 A Min AA: 1:28.19 (+3.75s | 4.1%) Sarasota Sharks 04/25/2026 11th Annual Hohne Memorial Invitational
182 Luka McGrath 1:32.04 10 A Min AA: 1:28.19 (+3.85s | 4.2%) Multnomah Athletic Club 07/12/2025 2025 OSI Arena Summer LC 10 U Championships
50 Back
46.06
46.06
100 Back
45.98
1:32.04
100 Back
1:32.04
183 Jason Feng 1:32.07 10 A Min AA: 1:28.19 (+3.88s | 4.2%) Boys & Girls Club of SF 06/27/2025 Silicon Valley LC CBA+ Meet
184 Craig Thompson 1:32.08 10 A Min AA: 1:28.19 (+3.89s | 4.2%) North Coast Aquatics 04/24/2026 2026 SI PS ABB Meet B Group
50 Back
45.24
45.24
100 Back
46.84
1:32.08
100 Back
1:32.08
185 Ryan Nesmith 1:32.13 10 A Min AA: 1:28.19 (+3.94s | 4.3%) Swim Florida 04/17/2026 2026 GCST Spring Open
50 Back
44.48
44.48
100 Back
47.65
1:32.13
100 Back
1:32.13
186 Mason Nguyen 1:32.17 10 A Min AA: 1:28.19 (+3.98s | 4.3%) Aquazot Swim Club 06/12/2025 2025 SCS June AG Invite @ La Mirada Armada
187 Ethan Ramon 1:32.20 10 A Min AA: 1:28.19 (+4.01s | 4.3%) Nitro Swimming 05/10/2026 2026 ST TXLA 10 U End Of School Splash
50 Back
44.80
44.80
100 Back
47.40
1:32.20
100 Back
1:32.20
188 Matt Borremans 1:32.24 9 A Min AA: 1:28.19 (+4.05s | 4.4%) South Florida Aquatic Club 05/15/2026 2026 Gulliver LCM Summer Classic
50 Back
44.67
44.67
100 Back
47.57
1:32.24
100 Back
1:32.24
189 Leo Gazzard 1:32.25 9 A Min AA: 1:28.19 (+4.06s | 4.4%) Bellevue Club Swim Team 05/01/2026 2026 PN BC May Flowers Approved
190 Owen Richards 1:32.25 9 A Min AA: 1:28.19 (+4.06s | 4.4%) Heartland Swim Assoc 04/24/2026 2026 SI PS ABB Meet Group A
50 Back
43.68
43.68
100 Back
48.57
1:32.25
100 Back
1:32.25
191 Adelynn Spurlin 1:32.32 10 BB Min A: 1:32.29 (+0.03s | 0.0%) North Jeffco Swim Team 05/15/2026 2026 CO NJ Ken Kelley Invite
50 Back
44.17
44.17
100 Back
48.15
1:32.32
100 Back
1:32.32
192 Robert Richards 1:32.35 10 BB Min A: 1:32.29 (+0.06s | 0.1%) Bolles School Sharks 04/25/2025 14th Annual JAX50 Sprint Dual Challenge
50 Back
44.43
44.43
100 Back
47.92
1:32.35
100 Back
1:32.35
193 Yixuan Zhu 1:32.35 10 BB Min A: 1:32.29 (+0.06s | 0.1%) Pleasanton Seahawks 04/25/2026 Brentwood Seawolves Long Course C B BB+
194 Alexander Dmyterko 1:32.36 10 BB Min A: 1:32.29 (+0.07s | 0.1%) Wahoo\\\\\\'s of Wellington 05/08/2026 2026 Wellington May Long Course Meet
50 Back
44.82
44.82
100 Back
47.54
1:32.36
100 Back
1:32.36
195 Timur Kolchin 1:32.42 10 BB Min A: 1:32.29 (+0.13s | 0.1%) Fast Lane Aquatics 05/01/2026 2026 WFLA SPRING OPEN
196 Max Ong 1:32.43 10 BB Min A: 1:32.29 (+0.14s | 0.2%) Pacific Swim 04/24/2026 2026 SI PS ABB Meet Group A
50 Back
44.82
44.82
100 Back
47.61
1:32.43
100 Back
1:32.43
197 Harry Gerasim 1:32.46 9 BB Min A: 1:32.29 (+0.17s | 0.2%) Eagle Aquatics 05/15/2026 2026 Gulliver LCM Summer Classic
50 Back
44.30
44.30
100 Back
48.16
1:32.46
100 Back
1:32.46
198 Hawx Hansen 1:32.47 10 BB Min A: 1:32.29 (+0.18s | 0.2%) Wasatch Front Fish Market 07/17/2025 2025 UTAGS LC Championships
50 Back
45.71
45.71
100 Back
46.76
1:32.47
100 Back
1:32.47
199 Chase Witt 1:32.53 10 BB Min A: 1:32.29 (+0.24s | 0.3%) Gold\\\\\\'s Aquatics Club (Camas) 04/25/2026 GACC Spring Invitational
50 Back
44.90
44.90
100 Back
47.63
1:32.53
100 Back
1:32.53
200 Jasper de Szoeke 1:32.58 10 BB Min A: 1:32.29 (+0.29s | 0.3%) Corvallis Aquatic Team 05/01/2026 2026 AAA May LC Invitational
50 Back
45.79
45.79
100 Back
46.79
1:32.58
100 Back
1:32.58

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.