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USA Boys 10 & under - 100 Y Breast

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
1001 Royce Rackley 1:33.69 10 BB Min A: 1:30.59 (+3.10s | 3.3%) Crater 02/14/2025 2025 OR HS 5A 2
50 Breast
44.56
44.56
100 Breast
49.13
1:33.69
100 Breast
1:33.69
1002 Walker Lewis 1:33.70 10 BB Min A: 1:30.59 (+3.11s | 3.3%) Excel Aquatics 01/16/2026 2026 TYR Mardi Gras Invite
1003 Caleb Nash 1:33.71 9 BB Min A: 1:30.59 (+3.12s | 3.3%) Enfinity Aquatic Club 01/10/2026 ATOM Frosty Invitational 2026
50 Breast
44.52
44.52
100 Breast
49.19
1:33.71
100 Breast
1:33.71
1004 Mateo Lopez-Cardoza 1:33.73 9 BB Min A: 1:30.59 (+3.14s | 3.4%) Mariner 02/12/2026 2026 (WIAA) NW District I 4A Boys HS OB
50 Breast
44.99
44.99
100 Breast
48.74
1:33.73
100 Breast
1:33.73
1005 Ren Yu 1:33.73 10 BB Min A: 1:30.59 (+3.14s | 3.4%) Asphalt Green Unified Aquatics 03/07/2026 2026 MR AGUA Last Chance Invitational
50 Breast
43.97
43.97
100 Breast
49.76
1:33.73
100 Breast
1:33.73
1006 James Lorenzoni 1:33.74 10 BB Min A: 1:30.59 (+3.15s | 3.4%) Cavalier Aquatics/Piedmont Fam 12/11/2025 2025 East Coast WinterFest
50 Breast
45.36
45.36
100 Breast
48.38
1:33.74
100 Breast
1:33.74
1007 Beckham Funderburk 1:33.74 10 BB Min A: 1:30.59 (+3.15s | 3.4%) SwimMAC Carolina 01/02/2026 2026 SwimMAC IMX Winter Invite Copied
50 Breast
43.52
43.52
100 Breast
50.22
1:33.74
100 Breast
1:33.74
1008 Ben Idziak 1:33.75 9 BB Min A: 1:30.59 (+3.16s | 3.4%) Drop Aquatics 02/27/2026 2026 MCSA Junior Cup
50 Breast
45.60
45.60
100 Breast
48.15
1:33.75
100 Breast
1:33.75
1009 Patrick Yuan 1:33.76 10 BB Min A: 1:30.59 (+3.17s | 3.4%) Long Island Aquatic Club 03/13/2026 2026 MR SC Junior Metropolitan Championships
50 Breast
43.89
43.89
100 Breast
49.87
1:33.76
100 Breast
1:33.76
1010 Olin Beerens 1:33.76 10 BB Min A: 1:30.59 (+3.17s | 3.4%) Longhorn Aquatics 02/06/2026 2026 ST AQTX STX Champs North
50 Breast
45.02
45.02
100 Breast
48.74
1:33.76
100 Breast
1:33.76
1011 Tyler Kautz 1:33.77 8 BB Min A: 1:30.59 (+3.18s | 3.4%) Upper Arlington Swim Club 03/12/2026 2026 OH SC Junior Championships
50 Breast
43.40
43.40
100 Breast
50.37
1:33.77
100 Breast
1:33.77
1012 Maximilian Machavariani 1:33.78 9 BB Min A: 1:30.59 (+3.19s | 3.4%) SwimMAC Carolina 02/14/2026 2026 SwimMAC Qualifier Festival
50 Breast
44.71
44.71
100 Breast
49.07
1:33.78
100 Breast
1:33.78
1013 Nikoloz Zhorzholiani 1:33.79 9 BB Min A: 1:30.59 (+3.20s | 3.4%) Seattle Metropolitan Aquatic C 03/19/2026 2026 NW Region Age Group Champs Approved
50 Breast
44.64
44.64
100 Breast
49.15
1:33.79
100 Breast
1:33.79
1014 Van Yetter 1:33.80 10 BB Min A: 1:30.59 (+3.21s | 3.4%) T2 Aquatics 03/05/2026 2026 Florida Swimming FLAGS SOUTH
50 Breast
43.72
43.72
100 Breast
50.08
1:33.80
100 Breast
1:33.80
1015 Jaezyn Magnaye 1:33.80 10 BB Min A: 1:30.59 (+3.21s | 3.4%) Tualatin Hills Swim Club 02/21/2026 2026 Arena Short Course 10 U Championships
50 Breast
45.98
45.98
100 Breast
47.82
1:33.80
100 Breast
1:33.80
1016 Emmett Tourney 1:33.84 10 BB Min A: 1:30.59 (+3.25s | 3.5%) Red Wing Swim Club 03/07/2026 2026 MN RSC 10 U State Championship
50 Breast
46.14
46.14
100 Breast
47.70
1:33.84
100 Breast
1:33.84
1017 Bruce Asmega 1:33.85 10 BB Min A: 1:30.59 (+3.26s | 3.5%) Pacifica Sea Lions 03/07/2026 BAC Race To AGCs
1018 Justin Huang 1:33.85 10 BB Min A: 1:30.59 (+3.26s | 3.5%) Tac Titans 03/25/2026 2026 TAC TITANS Tarheel States Meet
50 Breast
45.00
45.00
100 Breast
48.85
1:33.85
100 Breast
1:33.85
1019 Jack Bender 1:33.86 9 BB Min A: 1:30.59 (+3.27s | 3.5%) Unatached 03/21/2026 2026 MAKO SPRING FLING
50 Breast
42.82
42.82
100 Breast
51.04
1:33.86
100 Breast
1:33.86
1020 Evan Tomizawa 1:33.87 10 BB Min A: 1:30.59 (+3.28s | 3.5%) Kamehameha Swim Club 04/18/2026 44th Annual Harry Mamizuka Invitational
50 Breast
45.41
45.41
100 Breast
48.46
1:33.87
100 Breast
1:33.87
1021 Anderson Cox 1:33.88 10 BB Min A: 1:30.59 (+3.29s | 3.5%) Lynchburg YMCA Swim Team 03/19/2026 2026 USRY Short Course Champs
50 Breast
44.03
44.03
100 Breast
49.85
1:33.88
100 Breast
1:33.88
1022 Ari Mobasseri 1:33.88 8 BB Min A: 1:30.59 (+3.29s | 3.5%) Aquazot Swim Club 03/12/2026 2026 SCS Spring Age Group Champs @ RMDA Cop
50 Breast
43.91
43.91
100 Breast
49.97
1:33.88
100 Breast
1:33.88
1023 Everett Edquid 1:33.89 10 BB Min A: 1:30.59 (+3.30s | 3.5%) Aquabear Swim Club 02/13/2026 34th Annual Lost Dutchman Invitational
50 Breast
45.47
45.47
100 Breast
48.42
1:33.89
100 Breast
1:33.89
1024 Ethan Gaffin 1:33.89 9 BB Min A: 1:30.59 (+3.30s | 3.5%) Alamo Area Aquatic Association 02/13/2026 2026 ST HPAC STX Champs South
50 Breast
45.94
45.94
100 Breast
47.95
1:33.89
100 Breast
1:33.89
1025 Caleb Erete 1:33.89 10 BB Min A: 1:30.59 (+3.30s | 3.5%) Machine Aquatics 11/14/2025 2025PV November Open Fairland
50 Breast
45.51
45.51
100 Breast
48.38
1:33.89
100 Breast
1:33.89
1026 Reagan Wilsey 1:33.90 10 BB Min A: 1:30.59 (+3.31s | 3.5%) Palo Alto Stanford Aquatics 02/13/2026 2026 Neptune Swimming Invitational
50 Breast
44.40
44.40
100 Breast
49.50
1:33.90
100 Breast
1:33.90
1027 Brian Chou 1:33.91 9 BB Min A: 1:30.59 (+3.32s | 3.5%) Irvine Novaquatics 03/12/2026 2026 SCS Spring Age Group Champs @ RMDA Cop
50 Breast
44.63
44.63
100 Breast
49.28
1:33.91
100 Breast
1:33.91
1028 Adrian Deng 1:33.94 10 BB Min A: 1:30.59 (+3.35s | 3.6%) Mission Viejo Nadadores 02/13/2026 2026 MVN Lunar AAPI Festival
50 Breast
43.35
43.35
100 Breast
50.59
1:33.94
100 Breast
1:33.94
1029 Edison Smink 1:33.95 10 BB Min A: 1:30.59 (+3.36s | 3.6%) Rockville Montgomery Swim Club 01/23/2026 2026 USAS IMX Games
50 Breast
44.67
44.67
100 Breast
49.28
1:33.95
100 Breast
1:33.95
1030 Caleb Harrison 1:33.96 10 BB Min A: 1:30.59 (+3.37s | 3.6%) Huntsville Swim Association 02/27/2026 2026 SE Southeastern Winter SC Championships
50 Breast
45.29
45.29
100 Breast
48.67
1:33.96
100 Breast
1:33.96
1031 Ezra Epstein 1:33.97 10 BB Min A: 1:30.59 (+3.38s | 3.6%) Asphalt Green Unified Aquatics 03/07/2026 2026 MR AGUA Last Chance Invitational
50 Breast
44.77
44.77
100 Breast
49.20
1:33.97
100 Breast
1:33.97
1032 Levi Halbe 1:33.97 10 BB Min A: 1:30.59 (+3.38s | 3.6%) Nation\\\\\\'s Capital Swim Club 12/11/2025 2025 Katie Ledecky Invitational
50 Breast
44.41
44.41
100 Breast
49.56
1:33.97
100 Breast
1:33.97
1033 Ashton Chen 1:33.98 10 BB Min A: 1:30.59 (+3.39s | 3.6%) Brea Aquatics 02/13/2026 2026 MVN Lunar AAPI Festival
50 Breast
44.75
44.75
100 Breast
49.23
1:33.98
100 Breast
1:33.98
1034 Robby Li 1:33.98 9 BB Min A: 1:30.59 (+3.39s | 3.6%) Bolles School Sharks 03/05/2026 2026 Florida Swimming FLAGS NORTH
50 Breast
45.55
45.55
100 Breast
48.43
1:33.98
100 Breast
1:33.98
1035 Daniel Ferroni 1:33.98 10 BB Min A: 1:30.59 (+3.39s | 3.6%) Jersey Wahoos 11/07/2025 2025 Mid Atlantic AG Championship Showdown
50 Breast
44.26
44.26
100 Breast
49.72
1:33.98
100 Breast
1:33.98
1036 Ryder Stirling 1:33.99 10 BB Min A: 1:30.59 (+3.40s | 3.6%) West Ottawa Swim Club 03/14/2026 2026 SCY 10 Under Championship Meet
50 Breast
44.16
44.16
100 Breast
49.83
1:33.99
100 Breast
1:33.99
1037 Gavin Mahrous 1:34.00 9 BB Min A: 1:30.59 (+3.41s | 3.6%) Sioux Falls Swim Team 11/15/2025 2025 SD YST Charity Invite
50 Breast
44.47
44.47
100 Breast
49.53
1:34.00
100 Breast
1:34.00
1038 Spencer Frickson 1:34.02 9 BB Min A: 1:30.59 (+3.43s | 3.6%) Mako Aquatics 03/07/2026 2026 MN RSC 10 U State Championship
50 Breast
45.29
45.29
100 Breast
48.73
1:34.02
100 Breast
1:34.02
1039 Benjamin Thilking 1:34.04 10 BB Min A: 1:30.59 (+3.45s | 3.7%) Bedford Barracudas 03/07/2026 PYSA Champs 2026
50 Breast
43.98
43.98
100 Breast
50.06
1:34.04
100 Breast
1:34.04
1040 Aiden Meng 1:34.05 9 BB Min A: 1:30.59 (+3.46s | 3.7%) Pack Swim Team of Pittsford 01/23/2026 2026 USAS IMX Games
50 Breast
44.26
44.26
100 Breast
49.79
1:34.05
100 Breast
1:34.05
1041 William Martzke 1:34.06 10 BB Min A: 1:30.59 (+3.47s | 3.7%) Birmingham \\\\\\'y\\\\\\' Blue Dolphins 01/16/2026 2026 Odd Age Classic
50 Breast
45.04
45.04
100 Breast
49.02
1:34.06
100 Breast
1:34.06
1042 William Ouyang 1:34.08 10 BB Min A: 1:30.59 (+3.49s | 3.7%) San Ramon Valley Aquatics 03/28/2026 Albany Armada Aquatics SC C B BB+
1043 Reagan Chau 1:34.09 10 BB Min A: 1:30.59 (+3.50s | 3.7%) Ensworth Aquatics 12/05/2025 2025 Holiday Classic
50 Breast
45.73
45.73
100 Breast
48.36
1:34.09
100 Breast
1:34.09
1044 Liam Dunn 1:34.10 9 BB Min A: 1:30.59 (+3.51s | 3.7%) Meadowbrook Swim Team 03/05/2026 2026 MD LSC 14 U Championships
50 Breast
42.99
42.99
100 Breast
51.11
1:34.10
100 Breast
1:34.10
1045 Evan Manful 1:34.11 10 BB Min A: 1:30.59 (+3.52s | 3.7%) Henley 02/14/2025 2025 OR HS 4a 2
50 Breast
43.91
43.91
100 Breast
50.20
1:34.11
100 Breast
1:34.11
1046 Emilio Balcazar 1:34.14 10 BB Min A: 1:30.59 (+3.55s | 3.8%) Centro Acuatico Universitario 02/13/2026 2026 BD Arctic BLAST Swim Meet
1047 Daniel Nelasov 1:34.15 10 BB Min A: 1:30.59 (+3.56s | 3.8%) Jersey Wahoos 11/07/2025 2025 Mid Atlantic AG Championship Showdown
50 Breast
45.15
45.15
100 Breast
49.00
1:34.15
100 Breast
1:34.15
1048 Max Be 1:34.16 10 BB Min A: 1:30.59 (+3.57s | 3.8%) Rockville Montgomery Swim Club 02/20/2026 2026 RMSC February Invitational
50 Breast
45.74
45.74
100 Breast
48.42
1:34.16
100 Breast
1:34.16
1049 Kian Bahmani 1:34.18 10 BB Min A: 1:30.59 (+3.59s | 3.8%) Rockville Montgomery Swim Club 02/20/2026 2026 RMSC February Invitational
50 Breast
44.11
44.11
100 Breast
50.07
1:34.18
100 Breast
1:34.18
1050 John Wojtowicz 1:34.18 10 BB Min A: 1:30.59 (+3.59s | 3.8%) Green Terror Aquatic Club 11/14/2025 2025 NBAC Thanksgiving Meet
50 Breast
44.47
44.47
100 Breast
49.71
1:34.18
100 Breast
1:34.18

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.