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
2801 William Martzke 1:33.79 10 B Min BB: 1:30.09 (+3.70s | 3.9%) Birmingham \\\\\\'y\\\\\\' Blue Dolphins 11/22/2025 2025 Royal Fall Cup
50 Back
44.18
44.18
100 Back
49.61
1:33.79
100 Back
1:33.79
2802 Valton Watts 1:33.81 9 B Min BB: 1:30.09 (+3.72s | 4.0%) Houston Hydra 12/20/2024 MAC Hosted 2024 Gulf Fall Champs
50 Back
45.82
45.82
100 Back
47.99
1:33.81
100 Back
1:33.81
2803 Maverick Alvares 1:33.81 9 B Min BB: 1:30.09 (+3.72s | 4.0%) Fulshear Racing Swim Team 02/21/2025 2025 Gulf 12 Under Champs (KATY)
50 Back
45.89
45.89
100 Back
47.92
1:33.81
100 Back
1:33.81
2804 Nikolay Prokopovych 1:33.82 9 B Min BB: 1:30.09 (+3.73s | 4.0%) Amherst Tritons Swim Team 01/09/2026 2026 NE CRIM Jan Team Specialty
50 Back
45.40
45.40
100 Back
48.42
1:33.82
100 Back
1:33.82
2805 Travis Cooper 1:33.83 9 B Min BB: 1:30.09 (+3.74s | 4.0%) Rockville Montgomery Swim Club 01/16/2026 2026 RMSC January Intrasquad Meet
50 Back
45.51
45.51
100 Back
48.32
1:33.83
100 Back
1:33.83
2806 Gio Lee 1:33.84 10 B Min BB: 1:30.09 (+3.75s | 4.0%) Ridgewood YMCA Breakers Swim T 11/14/2025 2025 MR COND November IMX Invitational
50 Back
44.77
44.77
100 Back
49.07
1:33.84
100 Back
1:33.84
2807 Henry Hodes 1:33.84 8 B Min BB: 1:30.09 (+3.75s | 4.0%) Executive Swim Club 02/07/2026 2026 NE RAYS Love A Last Chance Specialty
50 Back
46.33
46.33
100 Back
47.51
1:33.84
100 Back
1:33.84
2808 Eduard Smagris 1:33.85 9 B Min BB: 1:30.09 (+3.76s | 4.0%) Bgc-N. Westchester Marlins 01/30/2026 2026 MR BGNW February Freeze Invitational
2809 Devin Schlapman 1:33.85 9 B Min BB: 1:30.09 (+3.76s | 4.0%) Huntsville Swim Association 12/05/2025 2025 Holiday Classic
50 Back
45.47
45.47
100 Back
48.38
1:33.85
100 Back
1:33.85
2810 Alexi Covarrubias 1:33.86 10 B Min BB: 1:30.09 (+3.77s | 4.0%) West Texas Typhoon 01/23/2026 2026 BD JCAT IMX 2026
2811 Grayson Lee 1:33.86 10 B Min BB: 1:30.09 (+3.77s | 4.0%) Twisters Swim Club 11/28/2025 2025 MR LIE Thanksgiving Invitational
50 Back
46.27
46.27
100 Back
47.59
1:33.86
100 Back
1:33.86
2812 Zakhar Biliavskyi 1:33.88 8 B Min BB: 1:30.09 (+3.79s | 4.0%) Tac Titans 10/18/2025 2025 TAC TITANS 12 U Tri Meet
2813 Reid Siemens 1:33.88 8 B Min BB: 1:30.09 (+3.79s | 4.0%) Hurricanes Swim Team 02/07/2026 2026 MN WEST EXPRESS LAST CHANCE MEET
2814 Wyatt Johnson 1:33.89 9 B Min BB: 1:30.09 (+3.80s | 4.0%) Huntsville Swim Association 01/16/2026 2026 HSA TYR Invitational
50 Back
46.52
46.52
100 Back
47.37
1:33.89
100 Back
1:33.89
2815 Conrad Winters 1:33.91 9 B Min BB: 1:30.09 (+3.82s | 4.1%) Old Dominion Aquatic Club 01/10/2026 ODAC January 2026 Rising Stars Meet
50 Back
46.04
46.04
100 Back
47.87
1:33.91
100 Back
1:33.91
2816 Lucas Nieves 1:33.92 10 B Min BB: 1:30.09 (+3.83s | 4.1%) San Juan Carib� 11/21/2025 2025 RAFC Almost Turkey Invitational
2817 Ben Tollon 1:33.92 9 B Min BB: 1:30.09 (+3.83s | 4.1%) West Florida Lightning Aquatic 01/10/2026 2026 WINTERFEST SWIM MEET
50 Back
46.33
46.33
100 Back
47.59
1:33.92
100 Back
1:33.92
2818 Porter Harris 1:33.92 8 B Min BB: 1:30.09 (+3.83s | 4.1%) Memphis Thunder Aquatic Club 11/21/2025 2025 GPAC Gravy Bowl Invitational
50 Back
46.47
46.47
100 Back
47.45
1:33.92
100 Back
1:33.92
2819 Baiyi Li 1:33.92 10 B Min BB: 1:30.09 (+3.83s | 4.1%) East Carolina Aquatics 01/10/2026 2026 RMY Winter Invitational
50 Back
46.95
46.95
100 Back
46.97
1:33.92
100 Back
1:33.92
2820 Caleb McGovern 1:33.93 10 B Min BB: 1:30.09 (+3.84s | 4.1%) Portland Aquatic Club 12/13/2025 2025 OR HEAT Winter Invitational
50 Back
46.13
46.13
100 Back
47.80
1:33.93
100 Back
1:33.93
2821 Preston Ranson 1:33.94 10 B Min BB: 1:30.09 (+3.85s | 4.1%) Eagle Swim Team Inc. 11/14/2025 2025 NBAC Thanksgiving Meet
50 Back
46.26
46.26
100 Back
47.68
1:33.94
100 Back
1:33.94
2822 Sullivan Nelson 1:33.94 9 B Min BB: 1:30.09 (+3.85s | 4.1%) Evergreen Hurricanes 01/09/2026 2026 CO NJ Narwhal Invitational
50 Back
45.31
45.31
100 Back
48.63
1:33.94
100 Back
1:33.94
2823 Dominic Pescarino 1:33.94 9 B Min BB: 1:30.09 (+3.85s | 4.1%) Birmingham \\\\\\'y\\\\\\' Blue Dolphins 11/08/2025 Atlantis 2025 Fall Quack Tack Ular
50 Back
46.81
46.81
100 Back
47.13
1:33.94
100 Back
1:33.94
2824 Luca Thompson 1:33.95 10 B Min BB: 1:30.09 (+3.86s | 4.1%) Bayside Aquatics 02/06/2026 2026 Last Chance Qualifying Meet
2825 Kabir Mangani 1:33.96 9 B Min BB: 1:30.09 (+3.87s | 4.1%) Crimson Aquatics 01/16/2026 2026 NE CRIM Bronze Championship
50 Back
42.35
42.35
100 Back
51.61
1:33.96
100 Back
1:33.96
2826 Remington Kang 1:33.96 8 B Min BB: 1:30.09 (+3.87s | 4.1%) Issaquah Swim Team 11/15/2025 2025 PN IST November Invitational
50 Back
45.11
45.11
100 Back
48.85
1:33.96
100 Back
1:33.96
2827 Marsel Saidashev 1:33.98 8 B Min BB: 1:30.09 (+3.89s | 4.1%) SwimRight Team 10/25/2025 2025 FG YSF October Invite
50 Back
45.68
45.68
100 Back
48.30
1:33.98
100 Back
1:33.98
2828 Carter Kolakowski 1:33.98 10 B Min BB: 1:30.09 (+3.89s | 4.1%) Naval Academy Aquatic Club 02/14/2026 EST Vs NAAC Dual Meet
50 Back
46.89
46.89
100 Back
47.09
1:33.98
100 Back
1:33.98
2829 Liam Benson 1:33.98 10 B Min BB: 1:30.09 (+3.89s | 4.1%) Sea Devils 11/22/2025 2025 MN HTSC Harvest Classic
50 Back
45.83
45.83
100 Back
48.15
1:33.98
100 Back
1:33.98
2830 John Coimbra 1:33.99 10 B Min BB: 1:30.09 (+3.90s | 4.1%) Tampa Y Swimming 08/23/2025 2025 TYR Stingrays SCY Season Opener
2831 David Zheng 1:34.00 8 B Min BB: 1:30.09 (+3.91s | 4.2%) Cypress Fairbanks Swim Club 12/20/2024 2024 Gulf Fall Champs (KATY)
50 Back
45.86
45.86
100 Back
48.14
1:34.00
100 Back
1:34.00
2832 Philip Wong 1:34.00 10 B Min BB: 1:30.09 (+3.91s | 4.2%) Trident Aquatic Club 10/04/2025 2025 MR QNS Hello Brooklyn Invitational
2833 Hunter Jorgensen 1:34.01 10 B Min BB: 1:30.09 (+3.92s | 4.2%) Farmingdale Aquatics 12/12/2025 2025 NE NSSC Dec Holiday Celebration!
50 Back
46.06
46.06
100 Back
47.95
1:34.01
100 Back
1:34.01
2834 Keith Guo 1:34.01 9 B Min BB: 1:30.09 (+3.92s | 4.2%) Pacific Dragons Swim Team 01/24/2026 2026 PN PDST Winter Invitational Meet Approv
50 Back
46.57
46.57
100 Back
47.44
1:34.01
100 Back
1:34.01
2835 Isaac Reyes 1:34.01 9 B Min BB: 1:30.09 (+3.92s | 4.2%) Texas Elite Swim Team 02/21/2025 2025 Gulf 12 Under Champs (DADS)
50 Back
47.08
47.08
100 Back
46.93
1:34.01
100 Back
1:34.01
2836 Hunter Olson 1:34.01 9 B Min BB: 1:30.09 (+3.92s | 4.2%) Bergen Barracudas Swim Team 10/10/2025 2025 MR COND October Fall Festival
50 Back
46.64
46.64
100 Back
47.37
1:34.01
100 Back
1:34.01
2837 Soren Niessen 1:34.02 9 B Min BB: 1:30.09 (+3.93s | 4.2%) Edina Swim Club 12/12/2025 2025 MN SCSC Winter Carnival
2838 Troy Williams 1:34.03 9 B Min BB: 1:30.09 (+3.94s | 4.2%) York Swim Club of Northern Vir 11/21/2025 2025 Swim Rock
50 Back
45.87
45.87
100 Back
48.16
1:34.03
100 Back
1:34.03
2839 Kevin Mello 1:34.05 10 B Min BB: 1:30.09 (+3.96s | 4.2%) YMCA of Greater Nashua Storm 10/10/2025 2025 NE CRA October Distance Specialty Meet
50 Back
45.50
45.50
100 Back
48.55
1:34.05
100 Back
1:34.05
2840 Brody Laster 1:34.06 10 B Min BB: 1:30.09 (+3.97s | 4.2%) Huntsville Swim Association 02/06/2026 2026 SES Region 3 Champions
50 Back
45.15
45.15
100 Back
48.91
1:34.06
100 Back
1:34.06
2841 William Gilmer 1:34.06 9 B Min BB: 1:30.09 (+3.97s | 4.2%) Aquatic Team Of Mecklenburg 12/05/2025 2025 NC SwimMAC December Invite
2842 Kane Hopperstad 1:34.07 9 B Min BB: 1:30.09 (+3.98s | 4.2%) Blue Tide Aquatics 10/18/2024 BATS 2024 October Invite
50 Back
45.74
45.74
100 Back
48.33
1:34.07
100 Back
1:34.07
2843 Allen Kolodny 1:34.07 9 B Min BB: 1:30.09 (+3.98s | 4.2%) Bravo Swim Team 09/05/2025 September Central Park Series
50 Back
46.16
46.16
100 Back
47.91
1:34.07
100 Back
1:34.07
2844 Oliver Shalvey 1:34.07 10 B Min BB: 1:30.09 (+3.98s | 4.2%) Excel Aquatics 12/05/2025 2025 Beaman Toyota Meet Of Champs
50 Back
45.94
45.94
100 Back
48.13
1:34.07
100 Back
1:34.07
2845 Nolan Loera 1:34.09 9 B Min BB: 1:30.09 (+4.00s | 4.3%) Prince William Swim Club 12/04/2025 14th Annual Swim Tri Speedo Winter Champs
50 Back
44.47
44.47
100 Back
49.62
1:34.09
100 Back
1:34.09
2846 Ibrahim Ghanem 1:34.10 9 B Min BB: 1:30.09 (+4.01s | 4.3%) Romulus Torpedoes Swim Club 11/07/2025 25th Annual A3 Red, White, And Blue Classic
50 Back
45.55
45.55
100 Back
48.55
1:34.10
100 Back
1:34.10
2847 Blake Morris 1:34.10 9 B Min BB: 1:30.09 (+4.01s | 4.3%) Naval Academy Aquatic Club 11/07/2025 2025 CAC 5th Annual Zachary Spain Memorial Me
50 Back
45.98
45.98
100 Back
48.12
1:34.10
100 Back
1:34.10
2848 Samuel Hora 1:34.10 10 B Min BB: 1:30.09 (+4.01s | 4.3%) Montrose Marlins Swim Club 01/24/2026 2026 CO Montrose Marlins Polar Plunge
50 Back
44.88
44.88
100 Back
49.22
1:34.10
100 Back
1:34.10
2849 Gabriel Keeling 1:34.10 10 B Min BB: 1:30.09 (+4.01s | 4.3%) Laker Swim 01/30/2026 2026 FAST February Helping Hands Invite
50 Back
45.83
45.83
100 Back
48.27
1:34.10
100 Back
1:34.10
2850 Nolan Bocan 1:34.10 8 B Min BB: 1:30.09 (+4.01s | 4.3%) Enfinity Aquatic Club 02/07/2026 2026 EAC Last Chance Qualifier

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.