51
Dominick
Mikhailenko
1:03.42
15
B Min
BB: 1:02.69 (+0.73s | 1.2%)
North Coast Aquatics
01/18/2025
2025 SI HSA NTS All Aes Meet
52
Colin
Ross
1:03.49
14
B Min
BB: 1:02.69 (+0.80s | 1.3%)
Silver Falls Rapids YMCA
01/25/2025
Oregon YMCA Champrionship
53
Denis
Petrenko
1:03.53
15
B Min
BB: 1:02.69 (+0.84s | 1.3%)
Cali Piranha Swim Team
06/07/2025
2025 SI JBST Splash Dash Max
50 Back
31.65
31.65
100 Back
31.88
1:03.53
100 Back
1:03.53
54
Vincent
Kahn
1:04.00
13
B Min
BB: 1:02.69 (+1.31s | 2.0%)
Bay Club Aquatics
12/13/2024
2024 CA GWSC SCS WAG
50 Back
31.27
31.27
100 Back
32.73
1:04.00
100 Back
1:04.00
55
Leif
Peters-Barnes
1:04.25
14
B Min
BB: 1:02.69 (+1.56s | 2.4%)
Rancho San Dieguito
12/21/2024
2024 SI Winter Age Group Championships
50 Back
31.31
31.31
100 Back
32.94
1:04.25
100 Back
1:04.25
56
James
Calma
1:04.39
14
B Min
BB: 1:02.69 (+1.70s | 2.6%)
South Bay Aquatics
02/07/2025
2025 SI SBA All Ages NTS Meet Feb 7 9
50 Back
31.38
31.38
100 Back
33.01
1:04.39
100 Back
1:04.39
57
Andrew
Sanchez-Waddell
1:04.85
16
B Min
BB: 1:02.69 (+2.16s | 3.3%)
Swim Excellence Academy
01/31/2026
2026 SBA All Ages NTS Meet
50 Back
31.36
31.36
100 Back
33.49
1:04.85
100 Back
1:04.85
58
Cedrick
Tolentino
1:05.18
14
B Min
BB: 1:02.69 (+2.49s | 3.8%)
Sea to Desert Swim Association
02/07/2025
2025 SI SDSA All Ages A BB
50 Back
32.03
32.03
100 Back
33.15
1:05.18
100 Back
1:05.18
59
Cameron
Khadivi
1:05.30
15
B Min
BB: 1:02.69 (+2.61s | 4.0%)
Rancho San Dieguito
10/11/2025
2025 SI RSD All Ages B C Meet
50 Back
31.20
31.20
100 Back
34.10
1:05.30
100 Back
1:05.30
60
Zhongsheng
Yu
1:05.52
15
B Min
BB: 1:02.69 (+2.83s | 4.3%)
Pacific Swim
11/15/2024
2024 SI SDSA A BB All Ages
50 Back
31.83
31.83
100 Back
33.69
1:05.52
100 Back
1:05.52
61
Gavin
Li
1:05.72
15
B Min
BB: 1:02.69 (+3.03s | 4.6%)
North Coast Aquatics
02/07/2025
2025 SI SDSA All Ages A BB
50 Back
32.02
32.02
100 Back
33.70
1:05.72
100 Back
1:05.72
62
Teng
Shang
1:05.96
14
B Min
BB: 1:02.69 (+3.27s | 5.0%)
Rancho San Dieguito
02/07/2025
2025 SI SBA All Ages NTS Meet Feb 7 9
50 Back
31.27
31.27
100 Back
34.69
1:05.96
100 Back
1:05.96
63
Ricky
Feldman
1:06.43
15
B Min
BB: 1:02.69 (+3.74s | 5.6%)
Rancho San Dieguito
12/05/2025
SI 2025 RSD All Ages WAG Max
50 Back
31.67
31.67
100 Back
34.76
1:06.43
100 Back
1:06.43
64
Brogan
Toback
1:06.62
15
B Min
BB: 1:02.69 (+3.93s | 5.9%)
Swim Excellence Academy
12/05/2025
2025 SI JBST Wag Max Meet
50 Back
32.29
32.29
100 Back
34.33
1:06.62
100 Back
1:06.62
65
Yan
Yu
1:06.63
14
B Min
BB: 1:02.69 (+3.94s | 5.9%)
Pacific Swim
02/07/2025
2025 SI SDSA All Ages A BB
50 Back
32.38
32.38
100 Back
34.25
1:06.63
100 Back
1:06.63
66
Caleb
Ly
1:06.75
15
B Min
BB: 1:02.69 (+4.06s | 6.1%)
Mission Valley YMCA
01/31/2026
2026 SBA All Ages NTS Meet
50 Back
32.28
32.28
100 Back
34.47
1:06.75
100 Back
1:06.75
67
Lucas
Guerrero
1:07.01
15
B Min
BB: 1:02.69 (+4.32s | 6.4%)
Heartland Swim Assoc
01/31/2026
2026 SI HSA All Ages NTS Meet
68
Jaxon
Vega
1:07.10
15
B Min
BB: 1:02.69 (+4.41s | 6.6%)
North Coast Aquatics
01/18/2025
2025 SI HSA NTS All Aes Meet
69
Loren
Haun
1:07.12
15
B Min
BB: 1:02.69 (+4.43s | 6.6%)
Silverton
02/11/2026
2026 OR HS 5a 3
50 Back
32.43
32.43
100 Back
34.68
1:07.12
100 Back
1:07.12
70
Filip
Zuk
1:07.21
14
B Min
BB: 1:02.69 (+4.52s | 6.7%)
Pacific Swim
10/05/2024
2024 SI CAST Pentathlon 14 U
50 Back
32.52
32.52
100 Back
34.69
1:07.21
100 Back
1:07.21
71
Sean
Guo
1:07.36
14
B Min
BB: 1:02.69 (+4.67s | 6.9%)
Sidwell Friends School
02/19/2025
2025 DCSAA Swimming Championships
50 Back
32.15
32.15
100 Back
35.20
1:07.36
100 Back
1:07.36
72
Elijah
Araiza
1:07.61
15
B: 1:07.49 (+0.12s | 0.2%)
College Area Swim Team
12/06/2024
2024 SI SBA All Ages B WAG Max Meet
50 Back
33.19
33.19
100 Back
34.42
1:07.61
100 Back
1:07.61
73
Connor
Ho
1:07.89
14
B: 1:07.49 (+0.40s | 0.6%)
Pacific Swim
11/08/2025
HSA All Ages NTS
74
Kenji
Yamada
1:08.00
14
B: 1:07.49 (+0.51s | 0.8%)
Pacific Swim
12/21/2024
2024 SI Winter Age Group Championships
50 Back
32.47
32.47
100 Back
35.52
1:08.00
100 Back
1:08.00
75
Matthew
Smith
1:09.56
15
B: 1:07.49 (+2.07s | 3.0%)
Rancho San Dieguito
11/02/2024
2024 SI SBA All Ages B C BB Max Meet Nov 2 3
50 Back
33.57
33.57
100 Back
35.99
1:09.56
100 Back
1:09.56
76
Jadon
Xie
1:09.58
14
B: 1:07.49 (+2.09s | 3.0%)
Pacific Swim
10/04/2025
2025 SI CAST Pentathlon 14 U Copied
77
Maxim
Zviagintsev
1:09.76
14
B: 1:07.49 (+2.27s | 3.3%)
Jbarracudas Swim Team
12/06/2024
2024 SI JBST Wag Max Meet
50 Back
34.10
34.10
100 Back
35.66
1:09.76
100 Back
1:09.76
78
Ryan
Urioste
1:09.87
14
B: 1:07.49 (+2.38s | 3.4%)
Rancho San Dieguito
05/17/2025
2025 SI SBA NTS Meet
50 Back
34.04
34.04
100 Back
35.83
1:09.87
100 Back
1:09.87
79
Harrison
Tarricone
1:10.03
14
B: 1:07.49 (+2.54s | 3.6%)
North Coast Aquatics
11/02/2024
2024 SI JBST BC All Ages
50 Back
34.80
34.80
100 Back
35.23
1:10.03
100 Back
1:10.03
80
Max
McCauley
1:10.06
16
B: 1:07.49 (+2.57s | 3.7%)
Jbarracudas Swim Team
01/31/2026
2026 SI HSA All Ages NTS Meet
81
Brodyn
Rice
1:10.34
15
B: 1:07.49 (+2.85s | 4.1%)
Rancho San Dieguito
12/06/2024
2024 SI SBA All Ages B WAG Max Meet
50 Back
34.44
34.44
100 Back
35.90
1:10.34
100 Back
1:10.34
82
Nicholas
Attebury
1:10.51
15
B: 1:07.49 (+3.02s | 4.3%)
Pacific Swim
05/17/2025
2025 SI SBA NTS Meet
50 Back
33.74
33.74
100 Back
36.77
1:10.51
100 Back
1:10.51
83
Robert
Stanley
1:10.62
15
B: 1:07.49 (+3.13s | 4.4%)
North Coast Aquatics
12/06/2024
2024 SI JBST Wag Max Meet
50 Back
33.79
33.79
100 Back
36.83
1:10.62
100 Back
1:10.62
84
Jacob
Lowry
1:10.76
14
B: 1:07.49 (+3.27s | 4.6%)
Heartland Swim Assoc
10/11/2025
2025 SI HSA All Ages B C
85
Samuel
Vigil
1:10.94
15
B: 1:07.49 (+3.45s | 4.9%)
Sea to Desert Swim Association
11/08/2025
2025 SI SDSA All Ages NTS Meet
50 Back
34.56
34.56
100 Back
36.38
1:10.94
100 Back
1:10.94
86
Declan
Gilhooly
1:11.61
14
B: 1:07.49 (+4.12s | 5.8%)
Coronado Swim -team Elite
12/06/2024
2024 SI SBA All Ages B WAG Max Meet
50 Back
34.72
34.72
100 Back
36.89
1:11.61
100 Back
1:11.61
87
Abraham
Yanez
1:11.96
15
B: 1:07.49 (+4.47s | 6.2%)
Pacific Swim
10/12/2024
2024 SI HSA BC All Ages Oct
88
Cam
Thompson
1:12.34
15
B: 1:07.49 (+4.85s | 6.7%)
Silverton
02/11/2026
2026 OR HS 5a 3
50 Back
34.28
34.28
100 Back
38.06
1:12.34
100 Back
1:12.34
89
Leo
Brasil Lamson
1:12.37
15
B: 1:07.49 (+4.88s | 6.7%)
Unattached
11/08/2025
HSA All Ages NTS
90
Odin
Urtnowski
1:13.01
15
B: 1:07.49 (+5.52s | 7.6%)
Trinity Aquatics
12/05/2025
2025 SI JBST Wag Max Meet
50 Back
35.63
35.63
100 Back
37.38
1:13.01
100 Back
1:13.01
91
Zhengji
Li
1:13.03
14
B: 1:07.49 (+5.54s | 7.6%)
Pacific Swim
05/17/2025
2025 SI SBA NTS Meet
50 Back
35.65
35.65
100 Back
37.38
1:13.03
100 Back
1:13.03
92
West
Shaddox
1:13.15
15
B: 1:07.49 (+5.66s | 7.7%)
Heartland Swim Assoc
01/31/2026
2026 SI HSA All Ages NTS Meet
93
Cal
Kofstad
1:13.23
15
B: 1:07.49 (+5.74s | 7.8%)
Silverton
02/15/2025
2025 OR HS 5a 3
50 Back
35.03
35.03
100 Back
38.20
1:13.23
100 Back
1:13.23
94
Elias
Mains
1:13.46
13
B: 1:07.49 (+5.97s | 8.1%)
South Bay Aquatics
10/06/2024
2024 SI CAST Senior Meet
50 Back
37.23
37.23
100 Back
36.23
1:13.46
100 Back
1:13.46
95
Eli
Purcell
1:13.47
14
B: 1:07.49 (+5.98s | 8.1%)
Rancho San Dieguito
02/07/2025
2025 SI SBA All Ages NTS Meet Feb 7 9
50 Back
35.27
35.27
100 Back
38.20
1:13.47
100 Back
1:13.47
96
Matthew
Liebig
1:13.54
15
B: 1:07.49 (+6.05s | 8.2%)
Swim Excellence Academy
12/05/2025
2025 SI JBST Wag Max Meet
50 Back
36.44
36.44
100 Back
37.10
1:13.54
100 Back
1:13.54
97
Kai
Garcia
1:13.55
15
B: 1:07.49 (+6.06s | 8.2%)
Rancho San Dieguito
12/05/2025
SI 2025 RSD All Ages WAG Max
50 Back
35.25
35.25
100 Back
38.30
1:13.55
100 Back
1:13.55
98
Jonathan
Xu
1:13.72
14
B: 1:07.49 (+6.23s | 8.5%)
Rancho San Dieguito
11/02/2024
2024 SI SBA All Ages B C BB Max Meet Nov 2 3
50 Back
35.58
35.58
100 Back
38.14
1:13.72
100 Back
1:13.72
99
Elijah
Freeman
1:13.80
15
B: 1:07.49 (+6.31s | 8.6%)
Ryan YMCA Tidal Waves
11/08/2025
2025 SI SDSA All Ages NTS Meet
50 Back
36.71
36.71
100 Back
37.09
1:13.80
100 Back
1:13.80
100
Zekiel
Schwartz
1:13.94
14
B: 1:07.49 (+6.45s | 8.7%)
Inland Coastal Aquatic Club
12/15/2024
2024 SI FAST 14U C Meet