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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
4601 Nathaniel Seo 1:50.85 9 B: 1:40.69 (+10.16s | 9.2%) Seattle Metropolitan Aquatic C 10/16/2026 2026 PN VAST Fall Classic Invite Approved
50 Back
55.39
55.39
100 Back
55.46
1:50.85
100 Back
1:50.85
4602 Ethan Gao 1:50.85 10 B: 1:40.69 (+10.16s | 9.2%) California Dolphins Swim Team 11/14/2025 2025 Santa Clara Swim Club SC CBA Meet
50 Back
54.74
54.74
100 Back
56.11
1:50.85
100 Back
1:50.85
4603 James Lin 1:50.88 10 B: 1:40.69 (+10.19s | 9.2%) Wave Aquatics 10/03/2026 2026 PN Wave Rocktober Invitational Approved
50 Back
53.73
53.73
100 Back
57.15
1:50.88
100 Back
1:50.88
4604 Frederick Wong 1:50.90 9 B: 1:40.69 (+10.21s | 9.2%) Long Island Aquatic Club 01/10/2026 2026 MR FA Iron Dragon Invitational
50 Back
52.74
52.74
100 Back
58.16
1:50.90
100 Back
1:50.90
4605 Mateo Garcia 1:50.90 10 B: 1:40.69 (+10.21s | 9.2%) Battleground Area Swim Team 02/21/2025 2025 Gulf 12 Under Champs (NOCH)
4606 Samuel Tang 1:50.92 9 B: 1:40.69 (+10.23s | 9.2%) Long Island Express 01/16/2026 2026 MR LIE Winterfest Invitational
50 Back
54.51
54.51
100 Back
56.41
1:50.92
100 Back
1:50.92
4607 William Clark 1:50.92 9 B: 1:40.69 (+10.23s | 9.2%) YMCA of the Triangle Area Swim 02/13/2026 Speedo 2026 MOR Short Course Qualifier Meet
50 Back
53.69
53.69
100 Back
57.23
1:50.92
100 Back
1:50.92
4608 Grayson Lee 1:50.92 10 B: 1:40.69 (+10.23s | 9.2%) Machine Aquatics 12/04/2025 2025 PV Turkey Claus Showdown
4609 Max Namgong 1:50.93 9 B: 1:40.69 (+10.24s | 9.2%) Marlins Of Raleigh 11/21/2025 2025 YOTA Arena Turkey Classic
50 Back
54.09
54.09
100 Back
56.84
1:50.93
100 Back
1:50.93
4610 Ellis Hayes 1:50.93 9 B: 1:40.69 (+10.24s | 9.2%) Memphis Tiger Swimming 11/21/2025 2025 Tiger Turkey Tumble
50 Back
55.92
55.92
100 Back
55.01
1:50.93
100 Back
1:50.93
4611 Clarence Wu 1:50.95 8 B: 1:40.69 (+10.26s | 9.2%) Hanover Aquatics 01/17/2026 2026 Duck Bowl
50 Back
53.07
53.07
100 Back
57.88
1:50.95
100 Back
1:50.95
4612 Joseph Xu 1:50.95 9 B: 1:40.69 (+10.26s | 9.2%) Sarasota Sharks 06/20/2026 West Coast B Champtionships
50 Back
53.78
53.78
100 Back
57.17
1:50.95
100 Back
1:50.95
4613 Abraham Sacal 1:50.95 9 B: 1:40.69 (+10.26s | 9.2%) Jbarracudas Swim Team 10/17/2026 2026 SI SBA All Ages NTS Meet
50 Back
53.89
53.89
100 Back
57.06
1:50.95
100 Back
1:50.95
4614 Wesley Koo 1:50.96 9 B: 1:40.69 (+10.27s | 9.3%) South Shore YMCA Strypers 02/06/2026 2026 NE CRA Last Chance February Invite
4615 Sahas Seepuri 1:50.96 10 B: 1:40.69 (+10.27s | 9.3%) DeAnza Cupertino Aquatics 07/25/2026 2026 DACA SC CBA Meet
4616 Nathan McGrath 1:50.97 8 B: 1:40.69 (+10.28s | 9.3%) Annapolis Swim Club 11/07/2025 2025 CAC 5th Annual Zachary Spain Memorial Me
50 Back
51.84
51.84
100 Back
59.13
1:50.97
100 Back
1:50.97
4617 Advik Rana 1:50.99 9 B: 1:40.69 (+10.30s | 9.3%) Arlington Aquatic Club 12/12/2025 2025 MAKO HOLIDAY INVITATIONAL
50 Back
53.63
53.63
100 Back
57.36
1:50.99
100 Back
1:50.99
4618 Aidan Vietmeier 1:50.99 10 B: 1:40.69 (+10.30s | 9.3%) Long Island Aquatic Club 10/04/2025 2025 MR LIAC Fast Fall Invitational
50 Back
52.88
52.88
100 Back
58.11
1:50.99
100 Back
1:50.99
4619 Benson Maughan 1:50.99 10 B: 1:40.69 (+10.30s | 9.3%) Piranhas YMCA of the Suncoast 12/12/2025 2025 HARRY MEISEL WEST
4620 Thomas Yamamoto 1:51.00 10 B: 1:40.69 (+10.31s | 9.3%) Cedar Swim Club 02/20/2025 2025 CSC Final Countdown
4621 Kaiden Fontilus 1:51.00 10 B: 1:40.69 (+10.31s | 9.3%) Long Island Aquatic Club 01/16/2026 2026 MR NFS 43rd Annual Dr MLK Jr Invite
50 Back
51.69
51.69
100 Back
59.31
1:51.00
100 Back
1:51.00
4622 Mitchell McCombs 1:51.00 10 B: 1:40.69 (+10.31s | 9.3%) WeAquatics 02/08/2026 Munchkin Mania 2026
50 Back
51.53
51.53
100 Back
59.47
1:51.00
100 Back
1:51.00
4623 Reyan Rageer 1:51.00 9 B: 1:40.69 (+10.31s | 9.3%) Spartan Aquatic Club 02/14/2026 SAC Winter Classic
4624 Michael Dewitt 1:51.00 9 B: 1:40.69 (+10.31s | 9.3%) Thurston 02/12/2026 2026 OR HS 5A 2
50 Back
51.80
51.80
100 Back
59.20
1:51.00
100 Back
1:51.00
4625 Kynan Wiseman 1:51.00 10 B: 1:40.69 (+10.31s | 9.3%) Longmont Swim Club 10/24/2026 2026 CO LONG Great Pumpkin Pentathlon
50 Back
54.53
54.53
100 Back
56.47
1:51.00
100 Back
1:51.00
4626 Grayson Bennett 1:51.02 8 B: 1:40.69 (+10.33s | 9.3%) Spokane Waves Aquatic Team 12/05/2025 2025 SWAT Winter Invite
50 Back
53.24
53.24
100 Back
57.78
1:51.02
100 Back
1:51.02
4627 Liam Carolan 1:51.03 10 B: 1:40.69 (+10.34s | 9.3%) Pine Bush Piranhas 03/27/2026 2026 MR Metro Bronze Championship North
50 Back
53.86
53.86
100 Back
57.17
1:51.03
100 Back
1:51.03
4628 Raymond Zhang 1:51.04 9 B: 1:40.69 (+10.35s | 9.3%) Long Island Aquatic Club 11/01/2025 2025 MR TRI Fall SCY Invitational
50 Back
54.17
54.17
100 Back
56.87
1:51.04
100 Back
1:51.04
4629 Noah Thebeau 1:51.04 9 B: 1:40.69 (+10.35s | 9.3%) Rec-Plex Sharks 10/09/2026 Fall Festival Invitational
50 Back
55.62
55.62
100 Back
55.42
1:51.04
100 Back
1:51.04
4630 Ian Badgett 1:51.05 9 B: 1:40.69 (+10.36s | 9.3%) Smac 02/27/2026 2026 SW District Champs 9 Over
4631 Andrew Kaplan 1:51.07 9 B: 1:40.69 (+10.38s | 9.3%) SwimRise Aquatics 11/01/2025 2025 SwimRise Fall Festival
50 Back
53.82
53.82
100 Back
57.25
1:51.07
100 Back
1:51.07
4632 Michael Simpson 1:51.08 8 B: 1:40.69 (+10.39s | 9.4%) Fairfax Foxes Swimming 03/20/2026 2026 SwimRVA Clover Cup
50 Back
54.08
54.08
100 Back
57.00
1:51.08
100 Back
1:51.08
4633 Michael Reinhart 1:51.08 10 B: 1:40.69 (+10.39s | 9.4%) Long Island Express 03/27/2026 2026 MR Bronze Championship South LIE
50 Back
55.06
55.06
100 Back
56.02
1:51.08
100 Back
1:51.08
4634 Joshua Hamilton 1:51.09 10 B: 1:40.69 (+10.40s | 9.4%) Swim Kauai Aquatics 08/22/2026 19th Annual Kauai Classic
50 Back
53.53
53.53
100 Back
57.56
1:51.09
100 Back
1:51.09
4635 Colton Predoehl 1:51.10 10 B: 1:40.69 (+10.41s | 9.4%) Macomb Octopus Swim Team 12/12/2025 2025 GLT Tsunami
50 Back
51.61
51.61
100 Back
59.49
1:51.10
100 Back
1:51.10
4636 Noah Mautte 1:51.10 7 B: 1:40.69 (+10.41s | 9.4%) Hanover Aquatics 12/04/2025 2025 RAYS Nutcracker Classic Copied
50 Back
52.23
52.23
100 Back
58.87
1:51.10
100 Back
1:51.10
4637 Leon Lv 1:51.10 9 B: 1:40.69 (+10.41s | 9.4%) Mecklenburg Swim Association 12/05/2025 2025 NC SwimMAC December Invite
4638 John Breault 1:51.16 10 B: 1:40.69 (+10.47s | 9.4%) T2 Aquatics 02/27/2026 2026 T2 Area 5 Championships
50 Back
54.72
54.72
100 Back
56.44
1:51.16
100 Back
1:51.16
4639 Colton Weeks 1:51.17 10 B: 1:40.69 (+10.48s | 9.4%) St Albans Sharks 11/14/2025 2025 NECRA Nov Distance Specialty Meet Co
50 Back
54.50
54.50
100 Back
56.67
1:51.17
100 Back
1:51.17
4640 Hunter McCormick 1:51.17 9 B: 1:40.69 (+10.48s | 9.4%) Arizona Dolphins 12/04/2025 2025 Holiday Swim Festival
50 Back
53.62
53.62
100 Back
57.55
1:51.17
100 Back
1:51.17
4641 Crew Kimmons 1:51.17 9 B: 1:40.69 (+10.48s | 9.4%) Granite Falls Makos 03/27/2026 2026 ECA ECSL Championships
50 Back
56.16
56.16
100 Back
55.01
1:51.17
100 Back
1:51.17
4642 Alexander Martinez 1:51.19 9 B: 1:40.69 (+10.50s | 9.4%) Alamo Area Aquatic Association 02/24/2026 2026 ST AAAA NS End Of Season Race Nights
50 Back
53.62
53.62
100 Back
57.57
1:51.19
100 Back
1:51.19
4643 Ryan Lee 1:51.20 10 B: 1:40.69 (+10.51s | 9.5%) Punahou Aquatics Institute 09/19/2026 OSL IMX Meet
50 Back
55.23
55.23
100 Back
55.97
1:51.20
100 Back
1:51.20
4644 Choeyang Gyaltso 1:51.21 10 B: 1:40.69 (+10.52s | 9.5%) Montrose Marlins Swim Club 06/05/2026 2026 CO Gunnison Invitational
50 Back
54.36
54.36
100 Back
56.85
1:51.21
100 Back
1:51.21
4645 Nick Gianotti 1:51.23 10 B: 1:40.69 (+10.54s | 9.5%) Belleville High School 02/26/2026 2026 KLAA B Conference Swim Meet
50 Back
49.96
49.96
100 Back
1:01.27
1:51.23
100 Back
1:51.23
4646 Vitus Wei 1:51.25 10 B: 1:40.69 (+10.56s | 9.5%) Cascade Swim Club 10/03/2026 2026 PN CSC Fall Classic Invitational Approve
50 Back
52.38
52.38
100 Back
58.87
1:51.25
100 Back
1:51.25
4647 Yikai Cui 1:51.25 8 B: 1:40.69 (+10.56s | 9.5%) Nitro Swimming 09/18/2026 2026 ST AQTX Round Rock Unclassified
50 Back
52.58
52.58
100 Back
58.67
1:51.25
100 Back
1:51.25
4648 William Kute 1:51.26 9 B: 1:40.69 (+10.57s | 9.5%) Lakeside Swim Team 10/16/2026 2026 SwimVille USA Jack Thompson Classic
4649 Cavan Threlkeld 1:51.27 9 B: 1:40.69 (+10.58s | 9.5%) Hampton Virginia Current 11/01/2025 ODAC Rising Stars Meet #2
50 Back
54.48
54.48
100 Back
56.79
1:51.27
100 Back
1:51.27
4650 Thomas Bangert 1:51.27 9 B: 1:40.69 (+10.58s | 9.5%) All Star Aquatics 03/20/2026 March Madness 2026

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.