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

Rancho San Dieguito Boys 10 & under 100 Y Back

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 Rain Liu 1:26.01 10 BB Min A: 1:19.59 (+6.42s | 7.5%) Rancho San Dieguito 04/11/2026 SI 2026 RSD All Ages BC Meet
50 Back
41.40
41.40
100 Back
44.61
1:26.01
100 Back
1:26.01
2 Jonathan Wen 1:27.09 10 BB Min A: 1:19.59 (+7.50s | 8.6%) Rancho San Dieguito 10/24/2025 2025 SI JBST ALL AGES A BB MEET
50 Back
42.01
42.01
100 Back
45.08
1:27.09
100 Back
1:27.09
3 Jacob Chen 1:30.35 9 B Min BB: 1:30.09 (+0.26s | 0.3%) Alto Swim Club 03/28/2026 Alto Rock The Blocks Invitational 2026
50 Back
44.89
44.89
100 Back
45.46
1:30.35
100 Back
1:30.35
4 William Chen 1:33.62 10 B Min BB: 1:30.09 (+3.53s | 3.8%) Rancho San Dieguito 04/11/2026 SI 2026 RSD All Ages BC Meet
50 Back
45.86
45.86
100 Back
47.76
1:33.62
100 Back
1:33.62
5 Mingzuo Cheng 1:42.85 10 B: 1:40.69 (+2.16s | 2.1%) Rancho San Dieguito 10/11/2025 2025 SI RSD All Ages B C Meet
50 Back
48.25
48.25
100 Back
54.60
1:42.85
100 Back
1:42.85
6 William Lan 1:43.57 10 B: 1:40.69 (+2.88s | 2.8%) Rancho San Dieguito 10/11/2025 2025 SI RSD All Ages B C Meet
50 Back
49.90
49.90
100 Back
53.67
1:43.57
100 Back
1:43.57
7 Preston Bao 1:46.11 10 B: 1:40.69 (+5.42s | 5.1%) Rancho San Dieguito 10/11/2025 2025 SI RSD All Ages B C Meet
50 Back
52.55
52.55
100 Back
53.56
1:46.11
100 Back
1:46.11
8 Beau Fulton 1:48.77 10 B: 1:40.69 (+8.08s | 7.4%) Rancho San Dieguito 03/15/2025 2025 SI JBST NTS All Ages
9 Baden Brown 1:50.29 8 B: 1:40.69 (+9.60s | 8.7%) Rancho San Dieguito 04/11/2026 SI 2026 RSD All Ages BC Meet
50 Back
53.38
53.38
100 Back
56.91
1:50.29
100 Back
1:50.29
10 Theodore Ho 1:58.51 10 B: 1:40.69 (+17.82s | 15.0%) Rancho San Dieguito 10/11/2025 2025 SI RSD All Ages B C Meet
11 Leif Chang 2:08.44 10 B: 1:40.69 (+27.75s | 21.6%) Rancho San Dieguito 01/10/2026 2026 SI BAY 14U Rising Stars 3
12 Andy Han 2:12.99 8 B: 1:40.69 (+32.30s | 24.3%) Rancho San Dieguito 02/21/2026 2026 SI JBST Age Group Champs Max
50 Back
1:08.25
1:08.25
100 Back
1:04.74
2:12.99
100 Back
2:12.99
13 Preston Lee 2:15.02 9 B: 1:40.69 (+34.33s | 25.4%) Rancho San Dieguito 01/31/2026 2026 SBA All Ages NTS Meet
50 Back
1:05.98
1:05.98
100 Back
1:09.04
2:15.02
100 Back
2:15.02

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.