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USA Boys 10 & under - 50 Y Free

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
9001 Kainalu Rivera 43.61 9 B: 38.19 (+5.42s | 12.4%) Hilo Aquatic Club 10/03/2026 2026 BIG ISLAND SWIMMING
9002 Yunfan Zhang 43.61 8 B: 38.19 (+5.42s | 12.4%) Sunnyvale Swim Club 10/25/2025 2025 SUNN Fall Classic
9003 Benjamin Grist 43.62 9 B: 38.19 (+5.43s | 12.4%) Unattached 04/11/2025 2025 Boys Girls Clubs National Swim Champs
9004 Alexander Velazquez 43.62 10 B: 38.19 (+5.43s | 12.4%) Toppenish 01/10/2026 2026 Kentridge High School Invitational Obse
9005 Luke O'Leary 43.62 9 B: 38.19 (+5.43s | 12.4%) South Shore YMCA Strypers 11/01/2025 2025 NE NSSC Nov Beede Specialty Copied
9006 James Green 43.62 9 B: 38.19 (+5.43s | 12.4%) Streamline & Sprint Human Perf 11/07/2025 2025 SE BSL Cranberry Classic
9007 Jaxon Calloway 43.63 9 B: 38.19 (+5.44s | 12.5%) Martinsville Marlins 10/18/2025 LY 2025 YMCA October Meet
9008 Hudson Baird 43.63 10 B: 38.19 (+5.44s | 12.5%) Tollefson Swimming 01/17/2026 PVS January Open 2026 Fairland
9009 Flynn Michielsen 43.63 10 B: 38.19 (+5.44s | 12.5%) Power for Life 01/18/2025 2025 LSST January Frosty Meet
9010 Winston Han 43.63 6 B: 38.19 (+5.44s | 12.5%) Commonwealth Swimming 06/26/2026 2026 NE CS Summer Classic
9011 Carson Smith 43.63 10 B: 38.19 (+5.44s | 12.5%) Potomac Marlins 11/14/2025 2025 PV November Open PWCS
9012 Logan Yerges 43.63 8 B: 38.19 (+5.44s | 12.5%) Seahawks Swim club 09/12/2026 2026 Seahawks Dive Back In
9013 Andy Yu 43.63 10 B: 38.19 (+5.44s | 12.5%) Burlingame Aquatics 11/14/2025 PSL Pumpkin Spice Lovers 25 129
9014 Caleb Huff 43.64 9 B: 38.19 (+5.45s | 12.5%) Pirate Swim Club 12/29/2025 60th Holiday Open 2025 C Meet
9015 Jack Fryer 43.64 9 B: 38.19 (+5.45s | 12.5%) 92ny Flying Dolphins 12/05/2025 2025 MR BGNW December 14 Under Invitational
9016 Bryce Mercer 43.64 9 B: 38.19 (+5.45s | 12.5%) Velocity Aquatics 11/22/2025 2025 MN HTSC Harvest Classic
9017 Luke Sweet 43.64 8 B: 38.19 (+5.45s | 12.5%) Rockville Montgomery Swim Club 11/08/2025 2025 Autumn Mini Meet
9018 Isidore Harris 43.64 8 B: 38.19 (+5.45s | 12.5%) Nova of Virginia 03/21/2026 NOVA Short Course Send Off 2026
9019 Hoyt Marsocci 43.64 8 B: 38.19 (+5.45s | 12.5%) Indian River Aquatics 06/26/2026 2026 Summer Area 6 Champs
9020 Lahikiola Novikoff 43.64 9 B: 38.19 (+5.45s | 12.5%) Lahaina Swim Club 10/31/2026 2026 MAGSA B 2 SCY Meet
9021 Shai Deja 43.65 10 B: 38.19 (+5.46s | 12.5%) Three Village Swim Club 03/01/2026 2026 MR TVSC St Patrick S Day Last Chance
9022 Oliver Ng 43.65 9 B: 38.19 (+5.46s | 12.5%) Quince Orchard Swim Academy 02/27/2026 2026 Cherry Blossom Champs
9023 Matt Shen 43.65 10 B: 38.19 (+5.46s | 12.5%) Nitro Swimming 10/26/2025 2025 ST TXLA 10 U Fall Kick Off
9024 Brayden Wei 43.65 9 B: 38.19 (+5.46s | 12.5%) Bayclub Aquatic Swim Team 10/23/2026 2026 PN BAST October Meet Approved
9025 Remi Liepa 43.65 9 B: 38.19 (+5.46s | 12.5%) Edina Swim Club 10/23/2026 2026 MN EDI Invite
9026 Richard O'Brien 43.66 10 B: 38.19 (+5.47s | 12.5%) North Kent Aquatic Team 11/23/2025 2025 NKAT Fall Frenzy Day After Meet
9027 Andersen Keel 43.66 9 B: 38.19 (+5.47s | 12.5%) Utah Valley Aquatics 12/29/2025 60th Holiday Open 2025 C Meet
9028 Cal Willey 43.66 10 B: 38.19 (+5.47s | 12.5%) Humboldt Swim Club 09/27/2024 Neptune Swimming Fall Classic
9029 Emanuel Ungureanu 43.66 9 B: 38.19 (+5.47s | 12.5%) Puget Sound Swim Club 01/31/2026 2026 PN BISC Bluefin Invitational
9030 Sean Park 43.66 8 B: 38.19 (+5.47s | 12.5%) Utica Shelby Swim Club 02/27/2026 2026 Junior Cup
9031 Toba Galvan 43.66 10 B: 38.19 (+5.47s | 12.5%) Olympus Swimming Club 09/12/2026 NMST September Invite 26 SCY
9032 Luke Nieto 43.66 9 B: 38.19 (+5.47s | 12.5%) Greater Pensacola Aquatic Club 02/13/2026 2026 SES Region 4 Championships
9033 Oliver Carusone 43.66 7 B: 38.19 (+5.47s | 12.5%) Westlake Aquatic Facility 10/18/2026 2026 ST TXLA 10 U Fall Kick Off Invite
9034 Liam Haun 43.66 9 B: 38.19 (+5.47s | 12.5%) Edina Swim Club 10/23/2026 2026 MN EDI Invite
9035 Mitchell Tankersley 43.66 10 B: 38.19 (+5.47s | 12.5%) Medina Valley Swim Club 12/20/2025 2025 ST SASA Tis The Season
9036 Alton Rist 43.66 8 B: 38.19 (+5.47s | 12.5%) Island Aquatics 10/24/2026 2026 MAGSA 12 Under ABC SCY Meet
9037 Isaac Goulter 43.67 9 B: 38.19 (+5.48s | 12.5%) T2 Aquatics 09/20/2025 2025 GCST FALL INVITE
9038 Caleb Krug 43.67 9 B: 38.19 (+5.48s | 12.5%) Northern Lakes Aquatic Club 03/29/2025 2025 MN MYAS Midwest Regional Swim Meet
9039 Samuel Troup 43.67 10 B: 38.19 (+5.48s | 12.5%) Hanover Aquatics 01/17/2026 2026 Duck Bowl
9040 Camden Gray 43.67 6 B: 38.19 (+5.48s | 12.5%) Cleveland Aquatics 09/26/2026 2026 Fall Kickoff Classic Inviational
9041 August McDermott 43.67 8 B: 38.19 (+5.48s | 12.5%) Aquawolves Swimming 09/25/2026 2026 CO AQUA Vs DSA Dyal
9042 Adrian Moy 43.67 9 B: 38.19 (+5.48s | 12.5%) DeAnza Cupertino Aquatics 10/03/2026 2026 De Anza Cupertino Aquatics SC CBA Meet
9043 Roman Carroll 43.67 9 B: 38.19 (+5.48s | 12.5%) Cat 5 Aquatics 09/25/2026 2026 Tropic Like It S Hot Open
25 Free
21.13
21.13
50 Free
22.54
43.67
50 Free
43.67
9044 Maverick Klikus 43.67 6 B: 38.19 (+5.48s | 12.5%) Falfins Swimming 09/26/2026 2026 CO Falfins Short Course Series #1
9045 Owen Choi 43.67 10 B: 38.19 (+5.48s | 12.5%) Palo Alto Stanford Aquatics 03/07/2026 2026 PASA Last Chance For JO S
9046 Arthur Way-Stacey 43.68 8 B: 38.19 (+5.49s | 12.6%) Rapids Area YMCA 03/07/2026 2026 Michigan YMCA State Championship
9047 Hunter Linne 43.68 9 B: 38.19 (+5.49s | 12.6%) Pointe Aquatics 10/11/2025 2025 PA OLY DROP Tri Meet
9048 Cooper White 43.68 6 B: 38.19 (+5.49s | 12.6%) Williamsburg Aquatic Club 02/07/2026 2026 8 And Under Southeastern District Champs
9049 Caelan Hoogendyk 43.68 10 B: 38.19 (+5.49s | 12.6%) SwimTLC-Parker Phenomena Swim 01/09/2026 2026 CO NJ Narwhal Invitational
9050 Korbin Swiss 43.68 7 B: 38.19 (+5.49s | 12.6%) Rudyard Piranhas 02/15/2026 2026 MTSL Championship

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.