1
Isaac
Litwiller
49.81
17
AAA Min
AAAA: 48.89 (+0.92s | 1.8%)
Quicksilver Swimming
11/07/2025
Pleasanton Seahawks SC Senior 2
50 Back
24.13
24.13
100 Back
25.68
49.81
100 Back
49.81
2
Nathan
Foucu
50.08
17
AAA Min
AAAA: 48.89 (+1.19s | 2.4%)
Quicksilver Swimming
11/07/2025
Pleasanton Seahawks SC Senior 2
50 Back
24.63
24.63
100 Back
25.45
50.08
100 Back
50.08
3
Eduardo
Lasso
51.54
17
AA Min
AAA: 51.29 (+0.25s | 0.5%)
Quicksilver Swimming
11/07/2025
Pleasanton Seahawks SC Senior 2
50 Back
24.84
24.84
100 Back
26.70
51.54
100 Back
51.54
4
Clark
Apuada
52.08
16
AA Min
AAA: 51.29 (+0.79s | 1.5%)
Quicksilver Swimming
11/01/2024
Pleasanton Seahawks SC Senior Open
50 Back
25.40
25.40
100 Back
26.68
52.08
100 Back
52.08
5
Jaden
Kim
53.35
17
AA Min
AAA: 51.29 (+2.06s | 3.9%)
Quicksilver Swimming
11/07/2025
Pleasanton Seahawks SC Senior 2
50 Back
25.97
25.97
100 Back
27.38
53.35
100 Back
53.35
6
Sean
Chen
55.46
16
A Min
AA: 53.59 (+1.87s | 3.4%)
Quicksilver Swimming
01/26/2024
2024 Brian Malick Memorial Z1S Championships
7
Oliver
Santana
55.63
16
A Min
AA: 53.59 (+2.04s | 3.7%)
Quicksilver Swimming
09/23/2023
SR Open SC September 2023
50 Back
26.64
26.64
100 Back
28.99
55.63
100 Back
55.63
8
Thomas
Do
55.88
17
A Min
AA: 53.59 (+2.29s | 4.1%)
Quicksilver Swimming
11/01/2024
Pleasanton Seahawks SC Senior Open
50 Back
25.95
25.95
100 Back
29.93
55.88
100 Back
55.88
9
Mateo
Rosales
56.23
16
BB Min
A: 55.89 (+0.34s | 0.6%)
Quicksilver Swimming
11/01/2024
Pleasanton Seahawks SC Senior Open
50 Back
27.08
27.08
100 Back
29.15
56.23
100 Back
56.23
10
Elijah
Souza
57.07
16
BB Min
A: 55.89 (+1.18s | 2.1%)
Quicksilver Swimming
11/03/2023
Pleasanton Seahawks SC Senior Open
50 Back
27.53
27.53
100 Back
29.54
57.07
100 Back
57.07
11
Moore
Li
57.91
15
BB Min
A: 55.89 (+2.02s | 3.5%)
Quicksilver Swimming
10/19/2024
Orinda Aquatics SCY Senior Open Meet
50 Back
28.16
28.16
100 Back
29.75
57.91
100 Back
57.91
12
Bryce
Ng
58.46
17
BB Min
A: 55.89 (+2.57s | 4.4%)
Quicksilver Swimming
11/07/2025
Pleasanton Seahawks SC Senior 2
50 Back
28.38
28.38
100 Back
30.08
58.46
100 Back
58.46
13
Tyler
Porter
58.68
15
BB Min
A: 55.89 (+2.79s | 4.8%)
Quicksilver Swimming
02/17/2024
2024 MAC Senior Open Trials Finals
50 Back
28.52
28.52
100 Back
30.16
58.68
100 Back
58.68
14
Aaron
Lam
59.19
14
BB Min
A: 55.89 (+3.30s | 5.6%)
Quicksilver Swimming
11/04/2022
Terrapins SC Senior II Prelims Finals
50 Back
29.07
29.07
100 Back
30.12
59.19
100 Back
59.19
15
Sergio
Montoya
59.20
14
BB Min
A: 55.89 (+3.31s | 5.6%)
Quicksilver Swimming
03/10/2023
2023 Spring Age Group Championships SCSC
50 Back
28.66
28.66
100 Back
30.54
59.20
100 Back
59.20
16
Miguel
Rances
59.35
16
BB Min
A: 55.89 (+3.46s | 5.8%)
Swim South Bay
01/26/2024
2024 Brian Malick Memorial Z1S Championships
17
Lucas
Tompkins
59.53
17
BB Min
A: 55.89 (+3.64s | 6.1%)
Unattached
11/01/2024
Pleasanton Seahawks SC Senior Open
50 Back
29.07
29.07
100 Back
30.46
59.53
100 Back
59.53
18
Hanbo
Song
1:00.10
14
BB Min
A: 55.89 (+4.21s | 7.0%)
Quicksilver Swimming
03/30/2023
2023 Far Westerns SC Championships
50 Back
29.09
29.09
100 Back
31.01
1:00.10
100 Back
1:00.10
19
Mukul
Kanda
1:00.45
16
BB Min
A: 55.89 (+4.56s | 7.5%)
Quicksilver Swimming
12/14/2024
Zone 1 South Winter Championships
20
Keith
Magallanes
1:01.19
15
B Min
BB: 1:00.59 (+0.60s | 1.0%)
Quicksilver Swimming
10/22/2022
Orinda Aquatics PC Senior SC
50 Back
29.48
29.48
100 Back
31.71
1:01.19
100 Back
1:01.19
21
Alan
GU
1:01.27
15
B Min
BB: 1:00.59 (+0.68s | 1.1%)
Quicksilver Swimming
09/24/2022
TCA Short Course Senior Open Meet
50 Back
30.08
30.08
100 Back
31.19
1:01.27
100 Back
1:01.27
22
Ethan
Tayco
1:01.45
17
B Min
BB: 1:00.59 (+0.86s | 1.4%)
Quicksilver Swimming
01/24/2025
2025 Brian Malick Memorial Z1S Championships
23
Uladzislau
Khmel
1:02.03
16
B Min
BB: 1:00.59 (+1.44s | 2.3%)
Quicksilver Swimming
09/23/2023
SR Open SC September 2023
50 Back
30.13
30.13
100 Back
31.89
1:02.02
100 Back
1:02.02
24
Lucas
Tompkins
1:02.05
16
B Min
BB: 1:00.59 (+1.46s | 2.4%)
South Valley Makos
02/22/2024
2024 Juanita Allington Memorial
50 Back
30.10
30.10
100 Back
31.95
1:02.05
100 Back
1:02.05
25
Christopher
Winalski
1:03.54
15
B Min
BB: 1:00.59 (+2.95s | 4.6%)
Quicksilver Swimming
01/28/2022
2022 Z1S Brian Malick Memorial Meet
26
Kevin
Noller
1:03.78
17
B Min
BB: 1:00.59 (+3.19s | 5.0%)
Quicksilver Swimming
01/24/2025
2025 Brian Malick Memorial Z1S Championships
27
Warren
Tan
1:03.99
16
B Min
BB: 1:00.59 (+3.40s | 5.3%)
Quicksilver Swimming
12/14/2024
Zone 1 South Winter Championships
28
Bryce
Chen
1:04.09
13
B Min
BB: 1:00.59 (+3.50s | 5.5%)
Quicksilver Swimming
09/23/2022
SCSC $ Bay CBA+
29
Jason
Quesada
1:04.55
16
B Min
BB: 1:00.59 (+3.96s | 6.1%)
Quicksilver Swimming
12/14/2024
Zone 1 South Winter Championships
30
Lucas
Sepe
1:04.81
16
B Min
BB: 1:00.59 (+4.22s | 6.5%)
Quicksilver Swimming
12/08/2023
Zone 1 South AGC Minus Year End
31
Jack
Cameron
1:05.35
14
B: 1:05.19 (+0.16s | 0.2%)
Quicksilver Swimming
10/22/2022
Orinda Aquatics PC Senior SC
50 Back
31.56
31.56
100 Back
33.79
1:05.35
100 Back
1:05.35
32
Ryan
Sacco
1:05.72
14
B: 1:05.19 (+0.53s | 0.8%)
Quicksilver Swimming
02/19/2022
SBA C B A
33
Joey
Rypstra
1:05.81
16
B: 1:05.19 (+0.62s | 0.9%)
Quicksilver Swimming
01/24/2025
2025 Brian Malick Memorial Z1S Championships
34
Kevin
Noller
1:06.08
15
B: 1:05.19 (+0.89s | 1.3%)
Unattached
03/04/2023
Pleasanton Seahawks SC Senior Open
50 Back
32.60
32.60
100 Back
33.48
1:06.08
100 Back
1:06.08
35
Nolan
Watts
1:06.54
14
B: 1:05.19 (+1.35s | 2.0%)
Quicksilver Swimming
01/27/2023
2023 Brian Malick Memorial Z1S Championships
36
Brent
Kong
1:07.45
14
B: 1:05.19 (+2.26s | 3.4%)
Quicksilver Swimming
09/25/2021
QSS V TIDE SCY Dual Meet
50 Back
31.88
31.88
100 Back
35.57
1:07.45
100 Back
1:07.45
37
Derek
Laudon
1:07.86
14
B: 1:05.19 (+2.67s | 3.9%)
Pacific Swimming Zone
02/27/2022
2022 Pacific Swimming Zone Challenge
38
Harry
Yin
1:07.87
13
B: 1:05.19 (+2.68s | 3.9%)
Santa Clara Swim Club
11/20/2021
Pacific Swimming Senior Open Meet
50 Back
33.62
33.62
100 Back
34.25
1:07.87
100 Back
1:07.87
39
James
Kim
1:09.43
15
B: 1:05.19 (+4.24s | 6.1%)
Unattached
04/29/2022
BVAL - Mt. Hamilton Championships
40
Zachary
Zooby
1:09.45
14
B: 1:05.19 (+4.26s | 6.1%)
South Valley Stingrays
11/20/2021
Pacific Swimming Senior Open Meet
50 Back
34.14
34.14
100 Back
35.31
1:09.45
100 Back
1:09.45
41
Hayden
Jane
1:10.06
14
B: 1:05.19 (+4.87s | 7.0%)
Quicksilver Swimming
10/28/2022
2022 QSS TIDE Spooktacular
50 Back
33.95
33.95
100 Back
36.11
1:10.06
100 Back
1:10.06
42
Leonardo
Yousefpor
1:10.55
14
B: 1:05.19 (+5.36s | 7.6%)
Quicksilver Swimming
12/09/2022
Zone 1 South Winter Age Group (minus)
43
Aaron
Chien
1:11.73
14
B: 1:05.19 (+6.54s | 9.1%)
Quicksilver Swimming
12/09/2022
Zone 1 South Winter Age Group (minus)
44
Michael
Zhu
1:13.50
14
B: 1:05.19 (+8.31s | 11.3%)
Quicksilver Swimming
02/28/2021
QSS Intrasqaud Age Group Meet
50 Back
36.13
36.13
100 Back
37.37
1:13.50
100 Back
1:13.50
45
Kevin
JI
1:14.12
14
B: 1:05.19 (+8.93s | 12.0%)
Quicksilver Swimming
03/18/2023
Quicksilver Swimming Santa Cruz C B A+
46
Jason
Lee
1:14.40
14
B: 1:05.19 (+9.21s | 12.4%)
Quicksilver Swimming
10/22/2021
2021Quicksilver October Spooktacular
50 Back
36.13
36.13
100 Back
38.27
1:14.40
100 Back
1:14.40
47
Zachary
Rodrigues
1:14.52
14
B: 1:05.19 (+9.33s | 12.5%)
Quicksilver Swimming
01/28/2022
2022 Z1S Brian Malick Memorial Meet
48
Sean
Gwin
1:14.60
15
B: 1:05.19 (+9.41s | 12.6%)
Quicksilver Swimming
12/09/2022
Zone 1 South Winter Age Group (minus)
49
Danwoo
Yoo
1:14.75
14
B: 1:05.19 (+9.56s | 12.8%)
Quicksilver Swimming
03/14/2021
Pacific Swimming SC QSS TIDE SCVCC
50 Back
36.39
36.39
100 Back
38.36
1:14.75
100 Back
1:14.75
50
Jayden
Leggio
1:15.01
13
B: 1:05.19 (+9.82s | 13.1%)
Quicksilver Swimming
11/19/2021
2021 Quicksilver Swimming Last Chance JO S
50 Back
35.56
35.56
100 Back
39.45
1:15.01
100 Back
1:15.01