1
Chengyuan
Song
54.24
14
AAA Min
AAAA: 53.49 (+0.75s | 1.4%)
Alto Swim Club
04/03/2025
Pacific Swimming SC Far Western Champs
50 Back
26.20
26.20
100 Back
28.04
54.24
100 Back
54.24
2
Dylan
Zhao
55.81
14
AAA Min
AAAA: 53.49 (+2.32s | 4.2%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
3
Yixuan
Zhang
57.34
14
AA Min
AAA: 55.99 (+1.35s | 2.4%)
Alto Swim Club
12/19/2025
ALTO Candy Cane Classic
50 Back
28.00
28.00
100 Back
29.34
57.34
100 Back
57.34
4
Daniel
Deng
57.72
14
AA Min
AAA: 55.99 (+1.73s | 3.0%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
5
Ian
Sun
58.03
13
AA Min
AAA: 55.99 (+2.04s | 3.5%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
28.26
28.26
100 Back
29.77
58.03
100 Back
58.03
6
Phillip
Bulankov
58.57
13
AA Min
AAA: 55.99 (+2.58s | 4.4%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
50 Back
28.31
28.31
100 Back
30.26
58.57
100 Back
58.57
7
Logan
Browne
58.79
14
A Min
AA: 58.59 (+0.20s | 0.3%)
Alto Swim Club
12/19/2025
ALTO Candy Cane Classic
50 Back
28.26
28.26
100 Back
30.53
58.79
100 Back
58.79
8
Ethan
Chen
59.24
14
A Min
AA: 58.59 (+0.65s | 1.1%)
Alto Swim Club
03/20/2026
SCY Spring Age Group Championships
50 Back
28.89
28.89
100 Back
30.35
59.24
100 Back
59.24
9
Skye
Bailey
1:00.18
13
A Min
AA: 58.59 (+1.59s | 2.6%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
50 Back
29.04
29.04
100 Back
31.14
1:00.18
100 Back
1:00.18
10
Aiden
Yeh
1:00.60
14
A Min
AA: 58.59 (+2.01s | 3.3%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
50 Back
29.40
29.40
100 Back
31.20
1:00.60
100 Back
1:00.60
11
Elias
Kuusela
1:02.77
14
BB Min
A: 1:01.09 (+1.68s | 2.7%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
50 Back
30.63
30.63
100 Back
32.14
1:02.77
100 Back
1:02.77
12
Felix
Yu
1:03.65
14
BB Min
A: 1:01.09 (+2.56s | 4.0%)
Alto Swim Club
02/13/2026
34th Annual Lost Dutchman Invitational
13
Eric
Chang
1:03.86
14
BB Min
A: 1:01.09 (+2.77s | 4.3%)
Alto Swim Club
02/13/2026
34th Annual Lost Dutchman Invitational
14
Andrew
Xu
1:04.18
14
BB Min
A: 1:01.09 (+3.09s | 4.8%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
50 Back
31.51
31.51
100 Back
32.67
1:04.18
100 Back
1:04.18
15
Mason
Chan
1:04.78
14
BB Min
A: 1:01.09 (+3.69s | 5.7%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
50 Back
30.78
30.78
100 Back
34.00
1:04.78
100 Back
1:04.78
16
Michael
Gao
1:04.85
13
BB Min
A: 1:01.09 (+3.76s | 5.8%)
Alto Swim Club
04/03/2025
Pacific Swimming SC Far Western Champs
50 Back
31.83
31.83
100 Back
33.02
1:04.85
100 Back
1:04.85
17
Vincent
Liu
1:04.97
13
BB Min
A: 1:01.09 (+3.88s | 6.0%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
31.46
31.46
100 Back
33.51
1:04.97
100 Back
1:04.97
18
Bryan
Mai
1:06.24
13
B Min
BB: 1:06.19 (+0.05s | 0.1%)
Alto Swim Club
03/20/2026
SCY Spring Age Group Championships
50 Back
31.78
31.78
100 Back
34.46
1:06.24
100 Back
1:06.24
19
Nick
Momeni
1:06.47
14
B Min
BB: 1:06.19 (+0.28s | 0.4%)
Alto Swim Club
03/07/2026
DACA CBA Meet
20
Oscar
Wang
1:07.34
13
B Min
BB: 1:06.19 (+1.15s | 1.7%)
Alto Swim Club
04/03/2025
Pacific Swimming SC Far Western Champs
50 Back
32.67
32.67
100 Back
34.67
1:07.34
100 Back
1:07.34
21
William
Nabbe
1:07.61
13
B Min
BB: 1:06.19 (+1.42s | 2.1%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
33.01
33.01
100 Back
34.60
1:07.61
100 Back
1:07.61
22
Paxton
Sung
1:07.80
13
B Min
BB: 1:06.19 (+1.61s | 2.4%)
Alto Swim Club
12/05/2025
2025 Tualatin Hills Holiday Classic
50 Back
32.63
32.63
100 Back
35.17
1:07.80
100 Back
1:07.80
23
Leray
Williams
1:07.89
13
B Min
BB: 1:06.19 (+1.70s | 2.5%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
33.11
33.11
100 Back
34.78
1:07.89
100 Back
1:07.89
24
Aaron
Ji
1:08.95
13
B Min
BB: 1:06.19 (+2.76s | 4.0%)
Alto Swim Club
11/15/2025
Alto Nov 15 16 Fall Frolic
25
Ryan
Sung
1:09.06
13
B Min
BB: 1:06.19 (+2.87s | 4.2%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
33.25
33.25
100 Back
35.81
1:09.06
100 Back
1:09.06
26
Bryan
Wang
1:09.43
14
B Min
BB: 1:06.19 (+3.24s | 4.7%)
Alto Swim Club
10/26/2024
2024 SUNN Fall Classic CBA+ Meet
27
Michael
Dashouk
1:09.59
13
B Min
BB: 1:06.19 (+3.40s | 4.9%)
Alto Swim Club
01/24/2026
2026 Zone 1 North Championships
50 Back
34.18
34.18
100 Back
35.41
1:09.59
100 Back
1:09.59
28
Naruel
Yamanto
1:10.21
13
B Min
BB: 1:06.19 (+4.02s | 5.7%)
Alto Swim Club
02/13/2026
34th Annual Lost Dutchman Invitational
29
Ivan
Dub
1:10.50
14
B Min
BB: 1:06.19 (+4.31s | 6.1%)
Alto Swim Club
10/11/2025
2025 DACA SC CBA Meet
30
Theodore
Zhang
1:10.75
13
B Min
BB: 1:06.19 (+4.56s | 6.4%)
Alto Swim Club
03/07/2026
DACA CBA Meet
31
Daniel
Shin
1:13.25
14
B: 1:11.29 (+1.96s | 2.7%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
34.99
34.99
100 Back
38.26
1:13.25
100 Back
1:13.25
32
Lucas
Huang
1:13.46
13
B: 1:11.29 (+2.17s | 3.0%)
Alto Swim Club
11/09/2024
Alto Go The Distance
50 Back
35.70
35.70
100 Back
37.76
1:13.46
100 Back
1:13.46
33
Elliott
Gu
1:14.33
13
B: 1:11.29 (+3.04s | 4.1%)
Alto Swim Club
11/15/2025
Alto Nov 15 16 Fall Frolic
50 Back
36.11
36.11
100 Back
38.22
1:14.33
100 Back
1:14.33
34
Leroy
Tu
1:14.64
13
B: 1:11.29 (+3.35s | 4.5%)
Alto Swim Club
03/07/2026
DACA CBA Meet
35
Roman
Elman
1:14.99
14
B: 1:11.29 (+3.70s | 4.9%)
Alto Swim Club
02/14/2025
33rd Annual Lost Dutchman Invitational
36
Billy
Niu
1:16.13
13
B: 1:11.29 (+4.84s | 6.4%)
Alto Swim Club
10/11/2025
2025 DACA SC CBA Meet
37
Howard
Sun
1:16.15
13
B: 1:11.29 (+4.86s | 6.4%)
Alto Swim Club
10/11/2025
2025 DACA SC CBA Meet
38
Alexander
Masson
1:16.17
14
B: 1:11.29 (+4.88s | 6.4%)
Alto Swim Club
03/29/2024
Alto Rock The Blocks Invitational
39
Masaki
Shikdar
1:16.43
13
B: 1:11.29 (+5.14s | 6.7%)
Alto Swim Club
02/13/2026
34th Annual Lost Dutchman Invitational
40
Wyatt
Keng
1:16.71
14
B: 1:11.29 (+5.42s | 7.1%)
California Dolphins Swim Team
12/14/2024
2024 12 14 CDST SC C B BB+ Meet
41
Reznor
Tu
1:17.34
13
B: 1:11.29 (+6.05s | 7.8%)
Alto Swim Club
02/13/2026
34th Annual Lost Dutchman Invitational
42
Lin
Du
1:17.45
14
B: 1:11.29 (+6.16s | 8.0%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
37.61
37.61
100 Back
39.84
1:17.45
100 Back
1:17.45
43
Aiden
Ching
1:18.22
13
B: 1:11.29 (+6.93s | 8.9%)
Alto Swim Club
02/13/2026
34th Annual Lost Dutchman Invitational
44
Aidan
Toda
1:18.34
13
B: 1:11.29 (+7.05s | 9.0%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
37.72
37.72
100 Back
40.62
1:18.34
100 Back
1:18.34
45
Jiewen
Chen
1:18.82
14
B: 1:11.29 (+7.53s | 9.6%)
Alto Swim Club
02/07/2026
Alto Feb 7 8 CBA Valentines Day
50 Back
38.46
38.46
100 Back
40.36
1:18.82
100 Back
1:18.82
46
Yunxiang
Zhou
1:19.55
13
B: 1:11.29 (+8.26s | 10.4%)
Alto Swim Club
12/19/2025
ALTO Candy Cane Classic
50 Back
38.77
38.77
100 Back
40.78
1:19.55
100 Back
1:19.55
47
Donghyun
Kim
1:19.77
13
B: 1:11.29 (+8.48s | 10.6%)
Alto Swim Club
03/28/2026
Alto Rock The Blocks Invitational 2026
50 Back
39.12
39.12
100 Back
40.65
1:19.77
100 Back
1:19.77
48
Yunxiang
Zhou
1:20.03
13
B: 1:11.29 (+8.74s | 10.9%)
Alto Swim Club
12/06/2025
Alto Dec 6 7 CBA
50 Back
38.00
38.00
100 Back
42.03
1:20.03
100 Back
1:20.03
49
Adrian
Yang
1:20.24
13
B: 1:11.29 (+8.95s | 11.2%)
Alto Swim Club
10/25/2025
2025 SUNN Fall Classic
50
Amruth
Settipalli
1:20.42
14
B: 1:11.29 (+9.13s | 11.4%)
Alto Swim Club
12/06/2025
Alto Dec 6 7 CBA
50 Back
39.57
39.57
100 Back
40.85
1:20.42
100 Back
1:20.42