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USA Boys 10 & under - 100 Y 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
3451 Isaac Welmerink 1:39.78 9 B Min BB: 1:30.09 (+9.69s | 9.7%) Lakeridge Swim Team 03/14/2026 2026 NNA AGO
3452 William Seo 1:39.79 9 B Min BB: 1:30.09 (+9.70s | 9.7%) Bethesda-Chevy Chase YMCA 02/07/2026 2026 MAKO QUALIFIER
50 Back
49.01
49.01
100 Back
50.78
1:39.79
100 Back
1:39.79
3453 Joseph Gordon 1:39.81 10 B Min BB: 1:30.09 (+9.72s | 9.7%) McMinnville Swim Club 12/20/2025 2025 MSC Tri Meet
50 Back
47.23
47.23
100 Back
52.58
1:39.81
100 Back
1:39.81
3454 Colter Turner 1:39.81 10 B Min BB: 1:30.09 (+9.72s | 9.7%) Voltage Aquatics 12/13/2025 2025 Holiday Classic
50 Back
48.41
48.41
100 Back
51.40
1:39.81
100 Back
1:39.81
3455 Abayan Prithviraj 1:39.81 10 B Min BB: 1:30.09 (+9.72s | 9.7%) Alto Swim Club 03/28/2026 Alto Rock The Blocks Invitational 2026
50 Back
49.31
49.31
100 Back
50.50
1:39.81
100 Back
1:39.81
3456 Caleb Thorpe 1:39.82 10 B Min BB: 1:30.09 (+9.73s | 9.7%) Occoquan Swimming 12/11/2025 2025 East Coast WinterFest
3457 Nathaniel Gonzalez 1:39.83 9 B Min BB: 1:30.09 (+9.74s | 9.8%) El Paso Bel Air 01/21/2026 2026 BD UIL2 5A Championship
3458 Clark Harris 1:39.83 9 B Min BB: 1:30.09 (+9.74s | 9.8%) Roseburg 02/13/2026 2026 OR HS 6A 7
50 Back
46.89
46.89
100 Back
52.94
1:39.83
100 Back
1:39.83
3459 Johnathan Weninger 1:39.86 10 B Min BB: 1:30.09 (+9.77s | 9.8%) Legacy Aquatics 02/06/2026 Legacy Aquatics Spring Qualifier
50 Back
47.93
47.93
100 Back
51.93
1:39.86
100 Back
1:39.86
3460 Greyson Straka 1:39.86 9 B Min BB: 1:30.09 (+9.77s | 9.8%) Evergreen Hurricanes 01/09/2026 2026 CO NJ Narwhal Invitational
50 Back
47.73
47.73
100 Back
52.13
1:39.86
100 Back
1:39.86
3461 Carter Milroy 1:39.86 10 B Min BB: 1:30.09 (+9.77s | 9.8%) Foothills Swim Team 03/07/2025 2025 CO CSI Silver State Championships
50 Back
47.52
47.52
100 Back
52.34
1:39.86
100 Back
1:39.86
3462 Sean Tangmunkong 1:39.86 9 B Min BB: 1:30.09 (+9.77s | 9.8%) Unattached 12/07/2025 2025 NE NSSC December 7 SJP
3463 Bennett Haselfeld 1:39.86 10 B Min BB: 1:30.09 (+9.77s | 9.8%) Issaquah Swim Team 02/07/2026 2026 PN IST Feb Winter Invitational Approved
50 Back
48.27
48.27
100 Back
51.59
1:39.86
100 Back
1:39.86
3464 Maddox Fink 1:39.86 10 B Min BB: 1:30.09 (+9.77s | 9.8%) Madison Swimming Association 11/07/2025 MSA Veterans Day Invitational
50 Back
50.86
50.86
100 Back
49.00
1:39.86
100 Back
1:39.86
3465 Edward Strok 1:39.87 8 B Min BB: 1:30.09 (+9.78s | 9.8%) Asphalt Green Unified Aquatics 01/30/2026 2026 MR LIE Second Chance Invitational
50 Back
47.79
47.79
100 Back
52.08
1:39.87
100 Back
1:39.87
3466 Layton Boots 1:39.87 8 B Min BB: 1:30.09 (+9.78s | 9.8%) Sioux Falls Swim Team 01/23/2026 SFST SD 2026 January Invite
50 Back
48.43
48.43
100 Back
51.44
1:39.87
100 Back
1:39.87
3467 Benson Amspacher 1:39.89 9 B Min BB: 1:30.09 (+9.80s | 9.8%) King Aquatic Club 01/31/2026 2026 PN KING Beast IMX IMR Invitational Appr
50 Back
1:40.95
1:40.95
100 Back
-1.-6
1:39.89
100 Back
1:39.89
3468 Elijah Wieczorek 1:39.89 10 B Min BB: 1:30.09 (+9.80s | 9.8%) Canon City Piranhas 06/19/2026 2026 Max Shirley Radiff Memorial
50 Back
51.53
51.53
100 Back
48.36
1:39.89
100 Back
1:39.89
3469 Zachary Iannamico 1:39.89 10 B Min BB: 1:30.09 (+9.80s | 9.8%) Inland Coastal Aquatic Club 04/11/2026 2026 SI FAST BC All Ages
3470 Dely Pope 1:39.89 10 B Min BB: 1:30.09 (+9.80s | 9.8%) Mount Carmel Force Aquatics 02/27/2026 2026 OH BSC SC Regional Championships
50 Back
48.61
48.61
100 Back
51.28
1:39.89
100 Back
1:39.89
3471 Kenneth Zhao 1:39.90 9 B Min BB: 1:30.09 (+9.81s | 9.8%) Bluefish Swim Club 01/16/2026 2026 NE CS Bronze Championships
50 Back
50.30
50.30
100 Back
49.60
1:39.90
100 Back
1:39.90
3472 Charlie Kleiman 1:39.91 9 B Min BB: 1:30.09 (+9.82s | 9.8%) Dolphin Club 01/09/2026 NOVA New Year S Kick Off
50 Back
47.92
47.92
100 Back
51.99
1:39.91
100 Back
1:39.91
3473 Nathan Kreger 1:39.92 7 B Min BB: 1:30.09 (+9.83s | 9.8%) Supernova Swim Team 02/14/2026 2026 Best ValenTimes Meet
50 Back
48.19
48.19
100 Back
51.73
1:39.92
100 Back
1:39.92
3474 Matthew Reiber 1:39.94 10 B Min BB: 1:30.09 (+9.85s | 9.9%) Blue Tide Aquatics 10/18/2024 BATS 2024 October Invite
50 Back
48.10
48.10
100 Back
51.84
1:39.94
100 Back
1:39.94
3475 Gregory Eley 1:39.95 10 B Min BB: 1:30.09 (+9.86s | 9.9%) Machine Aquatics 03/20/2026 March Madness 2026
3476 Kade Sisson 1:39.97 9 B Min BB: 1:30.09 (+9.88s | 9.9%) Northern Colorado Swim Club 01/16/2026 2026 CO CUDA Classic
50 Back
49.60
49.60
100 Back
50.37
1:39.97
100 Back
1:39.97
3477 Levi Filip 1:39.97 9 B Min BB: 1:30.09 (+9.88s | 9.9%) Saline Swim Team 02/06/2026 SST Snowstorm Splash
50 Back
46.85
46.85
100 Back
53.12
1:39.97
100 Back
1:39.97
3478 Brody Brown 1:39.97 10 B Min BB: 1:30.09 (+9.88s | 9.9%) Jupiter Dragons Swim Team 09/13/2025 2025 Dragons Fall Short Course Invite
50 Back
47.17
47.17
100 Back
52.80
1:39.97
100 Back
1:39.97
3479 Wyatt DuPlissey 1:39.98 9 B Min BB: 1:30.09 (+9.89s | 9.9%) Monocacy Aquatic Club 03/21/2026 2026 Maryland 9 10 B Championship Meet
50 Back
48.47
48.47
100 Back
51.51
1:39.98
100 Back
1:39.98
3480 Maximiliano Botello 1:39.99 9 B Min BB: 1:30.09 (+9.90s | 9.9%) Dearborn Dolphins 02/28/2026 2026 Last Chance Meet
50 Back
50.03
50.03
100 Back
49.96
1:39.99
100 Back
1:39.99
3481 Flynn Michielsen 1:40.00 10 B Min BB: 1:30.09 (+9.91s | 9.9%) Power for Life 02/21/2025 2025 Gulf 12 Under Champs (KATY)
50 Back
49.37
49.37
100 Back
50.63
1:40.00
100 Back
1:40.00
3482 Jackson Young 1:40.01 10 B Min BB: 1:30.09 (+9.92s | 9.9%) Ybac Hurricanes 03/19/2026 2026 USRY Short Course Champs
50 Back
45.96
45.96
100 Back
54.05
1:40.01
100 Back
1:40.01
3483 Lincoln Yrizarry 1:40.02 10 B Min BB: 1:30.09 (+9.93s | 9.9%) Iolani Swim Club 12/06/2025 45th Annual Ken Suenaga Invitational (SCY)
3484 Lucas Daley 1:40.02 8 B Min BB: 1:30.09 (+9.93s | 9.9%) Atlantic Coast Athletic Club 11/15/2025 2025 WAC Fall Classic
50 Back
49.74
49.74
100 Back
50.28
1:40.02
100 Back
1:40.02
3485 Miles Tseung 1:40.02 10 B Min BB: 1:30.09 (+9.93s | 9.9%) San Ramon Valley Aquatics 11/08/2025 Brentwood Seawolves SCY C B BB+
3486 Oliver Skoubo 1:40.02 10 B Min BB: 1:30.09 (+9.93s | 9.9%) River Road Swim Team 11/01/2025 2025 AAA Turkey Dive Invitational
3487 Gabriel Dom 1:40.02 10 B Min BB: 1:30.09 (+9.93s | 9.9%) Bellevue Club Swim Team 01/31/2026 2026 PN BISC Bluefin Invitational
50 Back
47.90
47.90
100 Back
52.12
1:40.02
100 Back
1:40.02
3488 Harrison Green 1:40.03 10 B Min BB: 1:30.09 (+9.94s | 9.9%) Nova of Virginia 03/21/2026 NOVA Short Course Send Off 2026
50 Back
50.18
50.18
100 Back
49.85
1:40.03
100 Back
1:40.03
3489 Skyler Houck 1:40.03 9 B Min BB: 1:30.09 (+9.94s | 9.9%) King Aquatic Club 01/31/2026 2026 PN KING Beast IMX IMR Invitational Appr
50 Back
49.81
49.81
100 Back
50.22
1:40.03
100 Back
1:40.03
3490 Conor Riley 1:40.03 8 B Min BB: 1:30.09 (+9.94s | 9.9%) Bayside Aquatics 03/21/2026 2026 Maryland 8 Under Championship Meet
3491 Avery Roberts 1:40.04 10 B Min BB: 1:30.09 (+9.95s | 9.9%) Surge Aquatics 03/08/2025 2025 ST SRG Surge Spring Shenanigans
50 Back
46.90
46.90
100 Back
53.14
1:40.04
100 Back
1:40.04
3492 Ernesto Quinonez 1:40.04 9 B Min BB: 1:30.09 (+9.95s | 9.9%) Commonwealth Swimming 06/26/2026 2026 NE CS Summer Classic
3493 Declan Scheid 1:40.05 10 B Min BB: 1:30.09 (+9.96s | 10.0%) Ridgewood YMCA Breakers Swim T 11/14/2025 2025 MR COND November IMX Invitational
50 Back
47.58
47.58
100 Back
52.47
1:40.05
100 Back
1:40.05
3494 Vaughn Jamison 1:40.05 10 B Min BB: 1:30.09 (+9.96s | 10.0%) Aspire Aquatics of Colorado 03/06/2026 2026 CO 14 U Silver State
50 Back
47.59
47.59
100 Back
52.46
1:40.05
100 Back
1:40.05
3495 Tristan Lao 1:40.06 10 B Min BB: 1:30.09 (+9.97s | 10.0%) Nitro Swimming 10/26/2025 2025 ST TXLA 10 U Fall Kick Off
50 Back
49.01
49.01
100 Back
51.05
1:40.06
100 Back
1:40.06
3496 Hunter Catrambone 1:40.06 8 B Min BB: 1:30.09 (+9.97s | 10.0%) Quest Swimming 10/11/2025 2025 WAC Start Up Classic
50 Back
46.91
46.91
100 Back
53.15
1:40.06
100 Back
1:40.06
3497 Owen Gray 1:40.07 10 B Min BB: 1:30.09 (+9.98s | 10.0%) Newberg 02/15/2025 2025 OR HS 6A 3
3498 Connor Gui 1:40.08 10 B Min BB: 1:30.09 (+9.99s | 10.0%) 92ny Flying Dolphins 02/20/2026 2026 MR Metro Silver Central Champs WEST
50 Back
49.21
49.21
100 Back
50.87
1:40.08
100 Back
1:40.08
3499 William Greene 1:40.08 10 B Min BB: 1:30.09 (+9.99s | 10.0%) Charles River Aquatics 02/06/2026 2026 NE CRA Last Chance February Invite
50 Back
48.67
48.67
100 Back
51.41
1:40.08
100 Back
1:40.08
3500 Andrew Mastilenko 1:40.09 10 B Min BB: 1:30.09 (+10.00s | 10.0%) Lakeshore Swim Club 02/19/2026 2026 OH Cleveland SC Regional 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.