Rancho San Dieguito Boys 10 & under 50 Y Free
These rankings show the swimmers' placement within their swim team.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Jonathan Wen | 31.79 | 10 | BB Min | A: 31.09 (+0.70s | 2.2%) | Rancho San Dieguito | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 2 | Rain Liu | 32.25 | 10 | BB Min | A: 31.09 (+1.16s | 3.6%) | Rancho San Dieguito | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 3 | Jacob Chen | 35.46 | 9 | B Min | BB: 34.59 (+0.87s | 2.5%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 4 | Leif Chang | 37.27 | 10 | B Min | BB: 34.59 (+2.68s | 7.2%) | Rancho San Dieguito | 03/21/2026 | 2026 SI CAST All Ages NTS Meet South | |
| 5 | William Lan | 37.84 | 10 | B Min | BB: 34.59 (+3.25s | 8.6%) | Rancho San Dieguito | 04/11/2026 | SI 2026 RSD All Ages BC Meet | |
| 6 | Preston Bao | 38.22 | 10 | B: 38.19 (+0.03s | 0.1%) | Rancho San Dieguito | 11/08/2025 | 2025 SI SDSA All Ages NTS Meet | ||
| 7 | William Chen | 38.50 | 10 | B: 38.19 (+0.31s | 0.8%) | Rancho San Dieguito | 05/03/2026 | 2026 SI BAY 14U Rising Stars 1 | ||
| 8 | Mingzuo Cheng | 39.39 | 10 | B: 38.19 (+1.20s | 3.0%) | Rancho San Dieguito | 01/10/2026 | 2026 SI BAY 14U Rising Stars 3 | ||
| 9 | Beau Fulton | 41.61 | 10 | B: 38.19 (+3.42s | 8.2%) | Rancho San Dieguito | 03/15/2025 | 2025 SI JBST NTS All Ages | ||
| 10 | Nolan Bannan | 42.25 | 7 | B: 38.19 (+4.06s | 9.6%) | Rancho San Dieguito | 04/11/2026 | SI 2026 RSD All Ages BC Meet | ||
| 11 | Baden Brown | 42.51 | 8 | B: 38.19 (+4.32s | 10.2%) | Rancho San Dieguito | 04/11/2026 | SI 2026 RSD All Ages BC Meet | ||
| 12 | Gabriel Mas | 43.13 | 9 | B: 38.19 (+4.94s | 11.5%) | Rancho San Dieguito | 05/04/2025 | 2025 SI FAST 14U NTS | ||
| 13 | Oliver Cannon | 44.03 | 7 | B: 38.19 (+5.84s | 13.3%) | Rancho San Dieguito | 05/03/2026 | 2026 SI BAY 14U Rising Stars 1 | ||
| 14 | Ian Kim | 46.15 | 9 | B: 38.19 (+7.96s | 17.2%) | Rancho San Dieguito | 04/11/2026 | SI 2026 RSD All Ages BC Meet | ||
| 15 | Sebastian Boda | 46.17 | 9 | B: 38.19 (+7.98s | 17.3%) | Rancho San Dieguito | 01/10/2026 | 2026 SI BAY 14U Rising Stars 3 | ||
| 16 | Adrian Chu | 46.64 | 10 | B: 38.19 (+8.45s | 18.1%) | Rancho San Dieguito | 01/18/2025 | 2025 SI RSD All Ages NTS | ||
| 17 | Leo Wang | 46.65 | 8 | B: 38.19 (+8.46s | 18.1%) | Rancho San Dieguito | 03/21/2026 | 2026 SI CAST All Ages NTS Meet South | ||
| 18 | Theodore Ho | 46.94 | 10 | B: 38.19 (+8.75s | 18.6%) | Rancho San Dieguito | 04/11/2026 | SI 2026 RSD All Ages BC Meet | ||
| 19 | Andy Han | 47.26 | 8 | B: 38.19 (+9.07s | 19.2%) | Rancho San Dieguito | 05/03/2026 | 2026 SI BAY 14U Rising Stars 1 | ||
| 20 | Ian Cho | 47.66 | 9 | B: 38.19 (+9.47s | 19.9%) | Rancho San Dieguito | 03/15/2025 | 2025 SI JBST NTS All Ages | ||
| 21 | Preston Lee | 47.68 | 9 | B: 38.19 (+9.49s | 19.9%) | Rancho San Dieguito | 09/20/2025 | 2025 SI PS Freestyle Festival Sat | ||
| 22 | George Hitraya-Low | 48.43 | 10 | B: 38.19 (+10.24s | 21.1%) | Rancho San Dieguito | 06/07/2025 | 2025 SI JBST Splash Dash Max | ||
| 23 | James McCloskey | 48.55 | 9 | B: 38.19 (+10.36s | 21.3%) | Rancho San Dieguito | 08/02/2025 | 2025 SI WIND All Ages NTS Wrap Up Meet | ||
| 24 | Levi Charlton | 51.46 | 10 | B: 38.19 (+13.27s | 25.8%) | Rancho San Dieguito | 01/18/2025 | 2025 SI RSD All Ages NTS | ||
| 25 | Ishaan Hasan | 51.71 | 9 | B: 38.19 (+13.52s | 26.1%) | Rancho San Dieguito | 02/21/2026 | 2026 SI JBST Age Group Champs Max | ||
| 26 | Cormac Gibbons | 51.81 | 9 | B: 38.19 (+13.62s | 26.3%) | Rancho San Dieguito | 02/07/2025 | 2025 SI SBA All Ages NTS Meet Feb 7 9 | ||
| 27 | Elliot French | 53.76 | 9 | B: 38.19 (+15.57s | 29.0%) | Rancho San Dieguito | 02/21/2026 | 2026 SI JBST Age Group Champs Max | ||
| 28 | Aadith Ananthu | 57.33 | 8 | B: 38.19 (+19.14s | 33.4%) | Rancho San Dieguito | 10/11/2025 | 2025 SI RSD All Ages B C Meet | ||
| 29 | Ryan Do | 1:02.27 | 9 | B: 38.19 (+24.08s | 38.7%) | Rancho San Dieguito | 05/03/2026 | 2026 SI BAY 14U Rising Stars 1 | ||
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.