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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
4051 Sebastian Siebert Restrepo 1:40.54 10 B Min BB: 1:30.09 (+10.45s | 10.4%) Clearwater Aquatic Team 01/30/2026 2026 FAST February Helping Hands Invite
50 Back
47.77
47.77
100 Back
52.77
1:40.54
100 Back
1:40.54
4052 Bradley Kirtley 1:40.54 10 B Min BB: 1:30.09 (+10.45s | 10.4%) Battlefield Area Star Swimmers 01/09/2026 NOVA New Year S Kick Off
50 Back
49.62
49.62
100 Back
50.92
1:40.54
100 Back
1:40.54
4053 Adam Losirisup 1:40.55 10 B Min BB: 1:30.09 (+10.46s | 10.4%) Long Island Aquatic Club 01/10/2026 2026 MR FA Iron Dragon Invitational
50 Back
47.82
47.82
100 Back
52.73
1:40.55
100 Back
1:40.55
4054 Jake Hollandsworth 1:40.56 9 B Min BB: 1:30.09 (+10.47s | 10.4%) Arlington Aquatic Club 01/17/2026 2026 PV January Open Audrey Moore
50 Back
51.37
51.37
100 Back
49.19
1:40.56
100 Back
1:40.56
4055 Zeke Mallory 1:40.56 9 B Min BB: 1:30.09 (+10.47s | 10.4%) Alamo Area Aquatic Association 11/14/2025 2025 ST AAAA AH PW NC Invite
50 Back
48.74
48.74
100 Back
51.82
1:40.56
100 Back
1:40.56
4056 Ezra Junio 1:40.56 10 B Min BB: 1:30.09 (+10.47s | 10.4%) Legacy Aquatics 01/02/2026 2026 CST Shark Chase Invitational
4057 Seth Lindblom 1:40.59 10 B Min BB: 1:30.09 (+10.50s | 10.4%) Huntsville Swim Association 10/17/2025 2025 HSA Fran Norris Meet
50 Back
46.31
46.31
100 Back
54.28
1:40.59
100 Back
1:40.59
4058 Parth Chinnathambi 1:40.61 9 B Min BB: 1:30.09 (+10.52s | 10.5%) McCallie-GPS Aquatics 12/05/2025 2025 Beaman Toyota Meet Of Champs
50 Back
46.46
46.46
100 Back
54.15
1:40.61
100 Back
1:40.61
4059 Tyler Slater 1:40.61 10 B Min BB: 1:30.09 (+10.52s | 10.5%) First Colony Swim Team, Inc. 02/21/2025 2025 Gulf 12 Under Champs (PACK)
50 Back
49.83
49.83
100 Back
50.78
1:40.61
100 Back
1:40.61
4060 Jack Mancha 1:40.61 9 B Min BB: 1:30.09 (+10.52s | 10.5%) Nation\\\\\\'s Capital Swim Club 12/05/2025 2025 VSTP Ice Breaker Invitational
50 Back
49.66
49.66
100 Back
50.95
1:40.61
100 Back
1:40.61
4061 Leif Osborne 1:40.63 9 B Min BB: 1:30.09 (+10.54s | 10.5%) Bay Club Aquatics 12/05/2025 SI 2025 RSD All Ages WAG Max
50 Back
48.96
48.96
100 Back
51.67
1:40.63
100 Back
1:40.63
4062 Adam Alqaqaa 1:40.63 9 B Min BB: 1:30.09 (+10.54s | 10.5%) Front Range Barracudas 01/09/2026 2026 CO CUDA January Pizza Meet
50 Back
48.79
48.79
100 Back
51.84
1:40.63
100 Back
1:40.63
4063 Jamie Russell 1:40.63 9 B Min BB: 1:30.09 (+10.54s | 10.5%) Santa Clara Swim Club 11/14/2025 2025 Santa Clara Swim Club SC CBA Meet
50 Back
50.15
50.15
100 Back
50.48
1:40.63
100 Back
1:40.63
4064 Hawkins Blackstone 1:40.67 9 B Min BB: 1:30.09 (+10.58s | 10.5%) Nitro Swimming 01/17/2026 2026 ST AQTX B Champs North
50 Back
48.09
48.09
100 Back
52.58
1:40.67
100 Back
1:40.67
4065 Lucas Heine 1:40.67 9 B Min BB: 1:30.09 (+10.58s | 10.5%) Foxjets Swim Team 02/13/2026 2026 MN RSC President S Day Meet
50 Back
49.88
49.88
100 Back
50.79
1:40.67
100 Back
1:40.67
4066 Joel Mccormack 1:40.67 10 B Min BB: 1:30.09 (+10.58s | 10.5%) Condors Swim Club 11/14/2025 2025 MR COND November IMX Invitational
50 Back
45.62
45.62
100 Back
55.05
1:40.67
100 Back
1:40.67
4067 Maxim Wirzburger 1:40.68 10 B Min BB: 1:30.09 (+10.59s | 10.5%) East Coast C-Cerpants 11/14/2025 ISCA Fall Classic Championship 2025
50 Back
49.34
49.34
100 Back
51.34
1:40.68
100 Back
1:40.68
4068 Brooks Harvin 1:40.68 9 B Min BB: 1:30.09 (+10.59s | 10.5%) Marlins Of Raleigh 03/14/2026 2026 MOR Reagan Martin Rocks Swim Meet
50 Back
48.01
48.01
100 Back
52.67
1:40.68
100 Back
1:40.68
4069 Steven Luo 1:40.68 9 B Min BB: 1:30.09 (+10.59s | 10.5%) Rockville Montgomery Swim Club 11/14/2025 2025 RMSC November Dual Meet
50 Back
48.40
48.40
100 Back
52.28
1:40.68
100 Back
1:40.68
4070 Harrison Marr 1:40.71 10 B: 1:40.69 (+0.02s | 0.0%) Northwest Georgia Aquatics 01/09/2026 2026 MCC January Invite
50 Back
49.13
49.13
100 Back
51.58
1:40.71
100 Back
1:40.71
4071 Henry Coombs 1:40.71 10 B: 1:40.69 (+0.02s | 0.0%) Mecklenburg Swim Association 03/07/2026 2026 MSA March Madness Invitational
4072 Vance Miller 1:40.71 10 B: 1:40.69 (+0.02s | 0.0%) Poseidon Swimming Inc 12/05/2025 NOVA December Dip
50 Back
48.21
48.21
100 Back
52.50
1:40.71
100 Back
1:40.71
4073 Christian Oh 1:40.71 9 B: 1:40.69 (+0.02s | 0.0%) Asphalt Green Unified Aquatics 01/30/2026 2026 MR LIE Second Chance Invitational
50 Back
48.65
48.65
100 Back
52.06
1:40.71
100 Back
1:40.71
4074 Atlas Davis 1:40.71 10 B: 1:40.69 (+0.02s | 0.0%) Greater Columbus Swim Tm Of Oh 02/19/2026 2026 OH UASC SC Regional Championships
50 Back
50.42
50.42
100 Back
50.29
1:40.71
100 Back
1:40.71
4075 Leon Savic 1:40.72 9 B: 1:40.69 (+0.03s | 0.0%) 92ny Flying Dolphins 01/16/2026 2026 MR LIE Winterfest Invitational
50 Back
49.53
49.53
100 Back
51.19
1:40.72
100 Back
1:40.72
4076 Jaxon Calloway 1:40.72 9 B: 1:40.69 (+0.03s | 0.0%) Martinsville Marlins 10/10/2025 2025 TYDE Andy Craver Autumn Leaves Inv
50 Back
1:41.20
1:41.20
100 Back
0.-48
1:40.72
100 Back
1:40.72
4077 Henry Atkins 1:40.73 9 B: 1:40.69 (+0.04s | 0.0%) Laker Swim 01/17/2026 2026 GOAT TYR Team Challenge And SYOA
50 Back
49.04
49.04
100 Back
51.69
1:40.73
100 Back
1:40.73
4078 Gordon Song 1:40.74 9 B: 1:40.69 (+0.05s | 0.0%) Arctic Aquatics 11/14/2025 2025 NECRA Nov Distance Specialty Meet Co
50 Back
49.03
49.03
100 Back
51.71
1:40.74
100 Back
1:40.74
4079 Jakob Lipscomb 1:40.75 10 B: 1:40.69 (+0.06s | 0.1%) Watauga Swim Team 11/07/2025 TNAQ 2025 FALL INVITATIONAL
50 Back
49.24
49.24
100 Back
51.51
1:40.75
100 Back
1:40.75
4080 Thomas Box 1:40.75 9 B: 1:40.69 (+0.06s | 0.1%) Nation\\\\\\'s Capital Swim Club 12/04/2025 2025 PV Turkey Claus Showdown
50 Back
48.77
48.77
100 Back
51.98
1:40.75
100 Back
1:40.75
4081 Relja Martic 1:40.75 10 B: 1:40.69 (+0.06s | 0.1%) Tollefson Swimming 11/14/2025 2025PV November Open Fairland
50 Back
49.35
49.35
100 Back
51.40
1:40.75
100 Back
1:40.75
4082 Adeoluwa Jaiyeola 1:40.75 9 B: 1:40.69 (+0.06s | 0.1%) Accokeek Stroke Technique Swim 02/13/2026 39th Black History Swim Meet
4083 Fedor Evstigneev 1:40.75 9 B: 1:40.69 (+0.06s | 0.1%) Santa Clara Swim Club 12/05/2025 Zone 1S Year End Age Group Champs Minus Meet
4084 Patrick Rybicki 1:40.75 9 B: 1:40.69 (+0.06s | 0.1%) Royal Swimming 11/22/2025 2025 Royal Fall Cup
50 Back
49.33
49.33
100 Back
51.42
1:40.75
100 Back
1:40.75
4085 Marcelo Quijano 1:40.76 9 B: 1:40.69 (+0.07s | 0.1%) Oly Swimming 02/27/2026 2026 MCSA Junior Cup
50 Back
50.87
50.87
100 Back
49.89
1:40.76
100 Back
1:40.76
4086 Steven Luo 1:40.77 9 B: 1:40.69 (+0.08s | 0.1%) Rockville Montgomery Swim Club 01/16/2026 2026 RMSC January Intrasquad Meet
50 Back
48.16
48.16
100 Back
52.61
1:40.77
100 Back
1:40.77
4087 Parker Robles 1:40.77 9 B: 1:40.69 (+0.08s | 0.1%) Quest Swimming 01/24/2026 2026 WAC Mike Willard Polar Plunge
4088 Louie Roedersheimer 1:40.78 10 B: 1:40.69 (+0.09s | 0.1%) Cincinnati Marlins 02/19/2026 2026 OH CM SC Regional Championships
50 Back
48.85
48.85
100 Back
51.93
1:40.78
100 Back
1:40.78
4089 Ishaan Mittal 1:40.81 9 B: 1:40.69 (+0.12s | 0.1%) Rogue Rapids 11/21/2025 2025 Rogue Rapids Sofia Marks Invitational
50 Back
48.53
48.53
100 Back
52.28
1:40.81
100 Back
1:40.81
4090 Lucas Daush 1:40.81 10 B: 1:40.69 (+0.12s | 0.1%) Memphis Tiger Swimming 11/21/2025 2025 Tiger Turkey Tumble
50 Back
49.83
49.83
100 Back
50.98
1:40.81
100 Back
1:40.81
4091 William Vaughn 1:40.82 8 B: 1:40.69 (+0.13s | 0.1%) Jupiter Dragons Swim Team 02/06/2026 2026 Matt Mounts Memorial Swim Meet
50 Back
49.87
49.87
100 Back
50.95
1:40.82
100 Back
1:40.82
4092 Riley Lopez 1:40.82 10 B: 1:40.69 (+0.13s | 0.1%) Alamo Area Aquatic Association 03/01/2025 2025 AAAA SW End Of Season Splash
50 Back
49.03
49.03
100 Back
51.79
1:40.82
100 Back
1:40.82
4093 Marko Tamburi 1:40.84 10 B: 1:40.69 (+0.15s | 0.1%) Star Aquatics 01/09/2026 Friday Night At The Races Copied
50 Back
48.62
48.62
100 Back
52.22
1:40.84
100 Back
1:40.84
4094 Mason Blois 1:40.85 9 B: 1:40.69 (+0.16s | 0.2%) Huntsville Swim Association 10/17/2025 2025 HSA Fran Norris Meet
50 Back
51.32
51.32
100 Back
49.53
1:40.85
100 Back
1:40.85
4095 Landon Morton 1:40.87 10 B: 1:40.69 (+0.18s | 0.2%) Enfinity Aquatic Club 03/20/2026 2026 SwimRVA Clover Cup
50 Back
48.48
48.48
100 Back
52.39
1:40.87
100 Back
1:40.87
4096 Matthew Barrenechea 1:40.87 10 B: 1:40.69 (+0.18s | 0.2%) Metro Aquatic Club of Miami 12/06/2025 2025 NMST December Holiday Invite
50 Back
48.94
48.94
100 Back
51.93
1:40.87
100 Back
1:40.87
4097 Griffin Kivney 1:40.88 9 B: 1:40.69 (+0.19s | 0.2%) Sarasota Tsunami Swim Team 09/20/2025 2025 GCST FALL INVITE
50 Back
51.88
51.88
100 Back
49.00
1:40.88
100 Back
1:40.88
4098 Austin Wang 1:40.89 9 B: 1:40.69 (+0.20s | 0.2%) Tac Titans 03/25/2026 2026 TAC TITANS Tarheel States Meet
50 Back
47.91
47.91
100 Back
52.98
1:40.89
100 Back
1:40.89
4099 Jasper Senko 1:40.90 10 B: 1:40.69 (+0.21s | 0.2%) Swim Streamline at Northampton 10/12/2024 SSAN 2024 Kara Ward Pink Out
50 Back
48.27
48.27
100 Back
52.63
1:40.90
100 Back
1:40.90
4100 Kaan Tufan 1:40.90 9 B: 1:40.69 (+0.21s | 0.2%) Santa Clara Swim Club 02/07/2026 Valley Splash Short Course C B A Meet

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.