New! ScoreMeUp is now available on the App Store. Download the iOS app →

Western Zone Zone Boys 10 & under - 50 Y Back

These rankings show the swimmers' placement within their Zone.
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
951 Ethan Zhong 45.20 9 B Min BB: 42.89 (+2.31s | 5.1%) Quicksilver Swimming 12/05/2025 Zone 1S Year End Age Group Champs Minus Meet
952 Bryan Xia 45.20 7 B Min BB: 42.89 (+2.31s | 5.1%) Rockville Montgomery Swim Club 11/08/2025 2025 Autumn Mini Meet
953 Felix Jackson 45.22 9 B Min BB: 42.89 (+2.33s | 5.2%) Tualatin Hills Swim Club 08/08/2025 2025 OR NST Seahorse Invitational
954 Royce Ye 45.22 9 B Min BB: 42.89 (+2.33s | 5.2%) Aquacise Swimming 11/09/2025 2025 PN C Pentathlon
955 Isaac Han 45.22 8 B Min BB: 42.89 (+2.33s | 5.2%) Sunnyvale Swim Club 07/25/2026 2026 DACA SC CBA Meet
956 Corbyn Phillips 45.23 9 B Min BB: 42.89 (+2.34s | 5.2%) Clackamas 02/13/2026 2026 OR HS 6A 4
957 Finnegan Persampieri 45.23 10 B Min BB: 42.89 (+2.34s | 5.2%) Otter Swim Club 10/25/2025 2025 SUNN Fall Classic
958 Vaughn Jamison 45.23 10 B Min BB: 42.89 (+2.34s | 5.2%) Aspire Aquatics of Colorado 01/16/2026 2026 HSA TYR Invitational
959 Vivaan Agarwal 45.24 9 B Min BB: 42.89 (+2.35s | 5.2%) Wave Aquatics 08/01/2026 2026 PN WAVE Summer Pentathlon Invite Appr
960 Mark Ilin 45.24 10 B Min BB: 42.89 (+2.35s | 5.2%) Apex 08/07/2026 2026 OR NST Seahorse Invitational
961 Liber Liao 45.25 8 B Min BB: 42.89 (+2.36s | 5.2%) West Coast Aquatics 02/27/2026 2026 PN February AGI, Div 3 Approved
962 Leif Osborne 45.25 9 B Min BB: 42.89 (+2.36s | 5.2%) Bay Club Aquatics 07/10/2026 2026 SI JBST All Ages Last Chance Meet
963 Jax Richard 45.26 9 B Min BB: 42.89 (+2.37s | 5.2%) Life Time Fitness Utah Swim Te 02/21/2025 2025 Olympus Aquatics Last Chance
964 Mason NG 45.27 10 B Min BB: 42.89 (+2.38s | 5.3%) Port Angeles Swim Club 01/31/2026 2026 PN BISC Bluefin Invitational
965 Shayan Sarkar 45.27 10 B Min BB: 42.89 (+2.38s | 5.3%) Diablo Aquatics 01/31/2026 Zone 2 Winter Championship Meet
966 Michael Sohn 45.28 10 B Min BB: 42.89 (+2.39s | 5.3%) Front Range Barracudas 07/09/2026 2026 CO NCS 10 U Summer Festival
967 Sebastian Guerra 45.30 10 B Min BB: 42.89 (+2.41s | 5.3%) Bellingham Bay Swim Team 07/11/2026 2026 BBST Final Summer Splash Invite Approved
968 Gavin Liu 45.31 9 B Min BB: 42.89 (+2.42s | 5.3%) Wave Aquatics 06/19/2026 2026 PN SRST Summer Invitational Approved
969 Liam Skinner 45.32 8 B Min BB: 42.89 (+2.43s | 5.4%) Cache Valley Marlins 11/14/2025 November Meet 2025
970 William Holoman 45.34 10 B Min BB: 42.89 (+2.45s | 5.4%) Star Aquatics 10/03/2025 2025 STAR September Friday Night At The Races
971 Albert Yang 45.34 9 B Min BB: 42.89 (+2.45s | 5.4%) California Dolphins Swim Team 05/17/2026 Montclair 14 Under Short Course Pentathlon
972 Ezra Junio 45.36 10 B Min BB: 42.89 (+2.47s | 5.4%) Legacy Aquatics 02/06/2026 Legacy Aquatics Spring Qualifier
973 Skyler Houck 45.36 9 B Min BB: 42.89 (+2.47s | 5.4%) King Aquatic Club 01/31/2026 2026 PN KING Beast IMX IMR Invitational Appr
974 Austin Zhou 45.37 9 B Min BB: 42.89 (+2.48s | 5.5%) Pacific Dragons Swim Team 02/27/2026 2026 PN February AGI, Division 2 Approved
975 Senge Laka 45.37 9 B Min BB: 42.89 (+2.48s | 5.5%) Cascadia Swimming 01/23/2026 2026 TTSC Winter Qualifier
976 Ilich Contreras 45.39 10 B Min BB: 42.89 (+2.50s | 5.5%) McGrath Marlins Swim Team 07/10/2026 2026 SI SBA All Ages Last Chance Meet
977 Gordon Tai 45.40 10 B Min BB: 42.89 (+2.51s | 5.5%) Otter Swim Club 10/25/2025 2025 SUNN Fall Classic
978 Brooks Poshusta 45.40 10 B Min BB: 42.89 (+2.51s | 5.5%) Eastmont 01/31/2026 2026 Winter Open
25 Back
22.34
22.34
50 Back
23.06
45.40
50 Back
45.40
979 Carter Sparks 45.41 10 B Min BB: 42.89 (+2.52s | 5.5%) Front Range Barracudas 03/06/2026 2026 CO NCS Winter District Championships
25 Back
21.34
21.34
50 Back
24.07
45.41
50 Back
45.41
980 Nicoulas Young 45.42 10 B Min BB: 42.89 (+2.53s | 5.6%) Monterey Bay Swim Club 10/11/2025 QSS Santa Cruz Competenicia C B A+
981 Rufus Tang 45.44 10 B Min BB: 42.89 (+2.55s | 5.6%) Pacific Dragons Swim Team 03/07/2026 2026 PDST Mar Pentathlon Last Chance Approved
982 Colin Hui 45.45 10 B Min BB: 42.89 (+2.56s | 5.6%) Highlands Ranch Aquatics 11/15/2024 2024 CO TOPS Fall Invite
983 Dresden Ramirez 45.45 10 B Min BB: 42.89 (+2.56s | 5.6%) Legacy Aquatics 08/06/2026 2026 NE LA August SCY Invitational
984 Guillermo Dinares Cardenal 45.45 8 B Min BB: 42.89 (+2.56s | 5.6%) Vashon Seals Swim Team 04/26/2025 2025 PN UPAC Mark Olson Invitational
985 Matthew DiRuzzo 45.46 9 B Min BB: 42.89 (+2.57s | 5.7%) SlipStream Aquatics 02/13/2026 2026 CO NJ Groundhog Invite
986 Evan Hu 45.46 8 B Min BB: 42.89 (+2.57s | 5.7%) Pleasanton Seahawks 10/18/2025 PC SRVA SCY B BB+ Meet
987 Jaroslav Rezac 45.46 9 B Min BB: 42.89 (+2.57s | 5.7%) Longmont Swim Club 03/06/2026 2026 CO NCS Winter District Championships
25 Back
23.07
23.07
50 Back
22.39
45.46
50 Back
45.46
988 Noah Oh 45.47 10 B Min BB: 42.89 (+2.58s | 5.7%) Cascade Swim Club 03/07/2026 2026 PDST Mar Pentathlon Last Chance Approved
989 Nathan Nguyen 45.48 10 B Min BB: 42.89 (+2.59s | 5.7%) San Jose Goosemonkeys 10/25/2025 GGST Spooktacular 2025
990 Micah Adams 45.49 10 B Min BB: 42.89 (+2.60s | 5.7%) Hood River Valley Swim Team 02/22/2025 2025 Arena Short Course 10 U Championships
991 Samuel Kinsman 45.50 9 B Min BB: 42.89 (+2.61s | 5.7%) North Whidbey Aquatic Club 06/19/2026 2026 PN SRST Summer Invitational Approved
992 Henry Jian 45.51 10 B Min BB: 42.89 (+2.62s | 5.8%) Pacific Dragons Swim Team 12/06/2025 2025 PN Fall Divisionals, Division 1 OCA
993 Arthur Cahoy 45.51 9 B Min BB: 42.89 (+2.62s | 5.8%) Alto Swim Club 03/07/2026 DACA CBA Meet
994 Oleksandr Sydorchuk 45.51 10 B Min BB: 42.89 (+2.62s | 5.8%) Bure-Aqua Academy 01/23/2026 2026 CO TOPS Colorado Open
25 Back
22.16
22.16
50 Back
23.35
45.51
50 Back
45.51
995 Charlie Wang 45.51 9 B Min BB: 42.89 (+2.62s | 5.8%) DeAnza Cupertino Aquatics 11/15/2025 De Anza Cupertino Aquatics CBA+ Meet
996 Krthin Kothinti 45.53 9 B Min BB: 42.89 (+2.64s | 5.8%) Wave Aquatics 08/01/2026 2026 PN WAVE Summer Pentathlon Invite Appr
997 Christopher Rasmuson 45.53 9 B Min BB: 42.89 (+2.64s | 5.8%) Bishop Swim Team 07/31/2026 2026 High Country Short Course Championship
998 Grant Coburn 45.54 10 B Min BB: 42.89 (+2.65s | 5.8%) Barracuda Aquatic Club 11/14/2025 November Meet 2025
999 Srii Bezawada 45.55 10 B Min BB: 42.89 (+2.66s | 5.8%) Front Range Barracudas 03/06/2026 2026 CO NCS Winter District Championships
1000 Haolin Chen 45.55 10 B Min BB: 42.89 (+2.66s | 5.8%) Pacific Dragons Swim Team 01/24/2026 2026 PN PDST Winter Invitational Meet Approv

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.