Pacific Swimming Boys 10 & under - 50 M Back
These rankings show the swimmers' placement within their Local Swimming Committee (LSC).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 | |
|---|---|---|---|---|---|---|---|---|---|
| 101 | Hohyeon Cho | 48.47 | 10 | BB Min | A: 43.09 (+5.38s | 11.1%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 102 | Ethan Yang | 48.47 | 9 | BB Min | A: 43.09 (+5.38s | 11.1%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 103 | Grayson Julien | 48.50 | 10 | BB Min | A: 43.09 (+5.41s | 11.2%) | South Valley Makos | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 104 | Jacob Chen | 48.60 | 9 | BB Min | A: 43.09 (+5.51s | 11.3%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 105 | Daniel Gerasimov | 48.62 | 9 | BB Min | A: 43.09 (+5.53s | 11.4%) | Los Gatos Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 106 | Zhencheng Xu | 48.73 | 10 | BB Min | A: 43.09 (+5.64s | 11.6%) | Alto Swim Club | 06/20/2026 | Alto Summer Swelter | |
| 107 | Piradon Pukrittayakamee | 48.96 | 9 | BB Min | A: 43.09 (+5.87s | 12.0%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 108 | Gavin Lowe | 49.18 | 6 | BB Min | A: 43.09 (+6.09s | 12.4%) | Tri Valley Aquatics | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 109 | Thomas Cooke | 49.27 | 9 | BB Min | A: 43.09 (+6.18s | 12.5%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
| 110 | Lucas LeJanairo | 49.28 | 9 | BB Min | A: 43.09 (+6.19s | 12.6%) | DeAnza Cupertino Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 111 | Sutton Hopelain | 49.30 | 10 | B Min | BB: 49.29 (+0.01s | 0.0%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 112 | Charlie Wang | 49.39 | 9 | B Min | BB: 49.29 (+0.10s | 0.2%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 113 | Isaiah Fadillah | 49.54 | 10 | B Min | BB: 49.29 (+0.25s | 0.5%) | California Dolphins Swim Team | 05/02/2026 | Alto Spring Jam CBA | |
| 114 | Shayan Sarkar | 49.55 | 10 | B Min | BB: 49.29 (+0.26s | 0.5%) | Diablo Aquatics | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 115 | Lucas Li | 49.57 | 8 | B Min | BB: 49.29 (+0.28s | 0.6%) | Milpitas Aquatic Club | 04/19/2026 | MAC April 19 LCM Block Party | |
| 116 | Jace Gordon | 49.62 | 9 | B Min | BB: 49.29 (+0.33s | 0.7%) | Los Gatos Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 117 | Micah Parris | 49.63 | 9 | B Min | BB: 49.29 (+0.34s | 0.7%) | Sunnyvale Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 118 | Edmund Lin | 49.64 | 10 | B Min | BB: 49.29 (+0.35s | 0.7%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 119 | Hunter Atkins | 49.66 | 10 | B Min | BB: 49.29 (+0.37s | 0.7%) | Palo Alto Stanford Aquatics | 05/30/2025 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 120 | Lucas Li | 49.70 | 9 | B Min | BB: 49.29 (+0.41s | 0.8%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 121 | Ryden Ciammaichella | 49.71 | 9 | B Min | BB: 49.29 (+0.42s | 0.8%) | Piedmont Swim Team | 06/27/2026 | NVST Summer Plunge 2026 | |
| 122 | Albert Yang | 49.73 | 9 | B Min | BB: 49.29 (+0.44s | 0.9%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 123 | Jay Chao | 49.78 | 10 | B Min | BB: 49.29 (+0.49s | 1.0%) | Pleasanton Seahawks | 05/02/2026 | Alto Spring Jam CBA | |
| 124 | Ian Jiang | 50.00 | 9 | B Min | BB: 49.29 (+0.71s | 1.4%) | Burlingame Aquatics | 07/25/2026 | Alto Last Splash | |
| 125 | Albert Jing | 50.02 | 8 | B Min | BB: 49.29 (+0.73s | 1.5%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 126 | Saul Guevara | 50.02 | 8 | B Min | BB: 49.29 (+0.73s | 1.5%) | Alto Swim Club | 05/02/2026 | Alto Spring Jam CBA | |
| 127 | Ernest Gu | 50.06 | 8 | B Min | BB: 49.29 (+0.77s | 1.5%) | Bay Club Panthers | 05/02/2026 | Alto Spring Jam CBA | |
| 128 | Gavin Yang | 50.07 | 10 | B Min | BB: 49.29 (+0.78s | 1.6%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 129 | Yavin Dantra | 50.07 | 9 | B Min | BB: 49.29 (+0.78s | 1.6%) | San Ramon Valley Aquatics | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 130 | Jamie Russell | 50.09 | 9 | B Min | BB: 49.29 (+0.80s | 1.6%) | Santa Clara Swim Club | 06/27/2025 | Valley Splash | |
| 131 | Edward Song | 50.09 | 10 | B Min | BB: 49.29 (+0.80s | 1.6%) | Santa Clara Swim Club | 06/20/2026 | Zone 1 South Swim Under The Stars | |
| 132 | Liam Cuzman | 50.24 | 10 | B Min | BB: 49.29 (+0.95s | 1.9%) | Reno Aquatic Club | 06/19/2026 | Reno Aquatic Club Gamble | |
| 133 | Adam Kirk | 50.24 | 10 | B Min | BB: 49.29 (+0.95s | 1.9%) | Palo Alto Stanford Aquatics | 05/16/2025 | 2025 DACA LC CBA Meet | |
| 134 | William Machado | 50.28 | 10 | B Min | BB: 49.29 (+0.99s | 2.0%) | AC Swim Club | 06/12/2026 | Neptune Swimming June LC Meet | |
| 135 | Michael Du | 50.45 | 10 | B Min | BB: 49.29 (+1.16s | 2.3%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 136 | Demid Vorobev | 50.48 | 10 | B Min | BB: 49.29 (+1.19s | 2.4%) | California Dolphins Swim Team | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 137 | James Xiao | 50.49 | 9 | B Min | BB: 49.29 (+1.20s | 2.4%) | Otter Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 138 | Jasper Yan | 50.49 | 8 | B Min | BB: 49.29 (+1.20s | 2.4%) | California Dolphins Swim Team | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 139 | Owen Hayes | 50.53 | 10 | B Min | BB: 49.29 (+1.24s | 2.5%) | Hills Hurricane Swimming | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 140 | Jasper Tian | 50.60 | 9 | B Min | BB: 49.29 (+1.31s | 2.6%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 141 | Aaron Lee | 50.66 | 10 | B Min | BB: 49.29 (+1.37s | 2.7%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 142 | Patrick Wang | 50.67 | 9 | B Min | BB: 49.29 (+1.38s | 2.7%) | Milpitas Aquatic Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | |
| 143 | Aiden hu | 50.68 | 10 | B Min | BB: 49.29 (+1.39s | 2.7%) | Alto Swim Club | 07/25/2026 | Alto Last Splash | |
| 144 | Kurt Goetze | 50.70 | 10 | B Min | BB: 49.29 (+1.41s | 2.8%) | Los Altos Mountain View Aquati | 05/16/2026 | 2026 DACA LC CBA+ | |
| 145 | Makai Barraclough | 50.73 | 10 | B Min | BB: 49.29 (+1.44s | 2.8%) | Los Altos Mountain View Aquati | 05/30/2026 | MAC May 30 LCM Block Party | |
| 146 | Krishay Pandit | 50.77 | 9 | B Min | BB: 49.29 (+1.48s | 2.9%) | Milpitas Aquatic Club | 05/30/2026 | MAC May 30 LCM Block Party | |
| 147 | Maxx Yu | 50.85 | 10 | B Min | BB: 49.29 (+1.56s | 3.1%) | Burlingame Aquatics | 07/25/2026 | Alto Last Splash | |
| 148 | Victor Secor | 50.89 | 10 | B Min | BB: 49.29 (+1.60s | 3.1%) | Orinda Aquatics | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 149 | John Patane | 50.90 | 9 | B Min | BB: 49.29 (+1.61s | 3.2%) | Sonoma Sea Dragons | 06/12/2026 | Neptune Swimming June LC Meet | |
| 150 | Leo Hrynevich | 50.94 | 7 | B Min | BB: 49.29 (+1.65s | 3.2%) | Brentwood Seawolves | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
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.