Swimmer profile
Jacob Zhou
Male17-18SwimMAC CarolinaNC · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
44.07
38.15
▲ 5.92
32.85
▲ 5.30
29.26
▲ 3.59
28.05
▲ 1.21
25.82
▲ 2.23
24.07
▲ 1.75
23.49
▲ 0.58
22.28
▲ 1.21
21.66
▲ 0.62
22.08
▼ 0.42
100 Free SCY
1:43.60
1:30.82
▲ 12.78
1:12.61
▲ 18.21
1:04.71
▲ 7.90
59.21
▲ 5.50
55.74
▲ 3.47
52.65
▲ 3.09
51.88
▲ 0.77
49.50
▲ 2.38
47.66
▲ 1.84
48.17
▼ 0.51
200 Free SCY
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2:36.71
2:20.69
▲ 16.02
2:12.47
▲ 8.22
2:04.60
▲ 7.87
1:56.31
▲ 8.29
1:52.41
▲ 3.90
1:53.93
▼ 1.52
1:46.04
▲ 7.89
1:49.31
▼ 3.27
500 Free SCY
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6:38.02
5:59.48
▲ 38.54
5:44.86
▲ 14.62
5:20.30
▲ 24.56
5:08.78
▲ 11.52
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50 Back SCY
50.25
45.80
▲ 4.45
37.14
▲ 8.66
33.85
▲ 3.29
31.89
▲ 1.96
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—
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25.20
▲ 6.69
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100 Back SCY
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1:41.25
1:18.23
▲ 23.02
1:12.89
▲ 5.34
1:06.84
▲ 6.05
1:03.74
▲ 3.10
57.75
▲ 5.99
56.37
▲ 1.38
53.09
▲ 3.28
52.74
▲ 0.35
53.78
▼ 1.04
200 Back SCY
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2:45.31
2:28.94
▲ 16.37
2:16.14
▲ 12.80
2:03.83
▲ 12.31
2:02.06
▲ 1.77
1:57.55
▲ 4.51
1:55.34
▲ 2.21
2:02.36
▼ 7.02
50 Breast SCY
57.63
1:00.69
▼ 3.06
49.61
▲ 11.08
44.40
▲ 5.21
40.04
▲ 4.36
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31.66
▲ 8.38
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100 Breast SCY
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2:23.17
1:51.55
▲ 31.62
1:36.60
▲ 14.95
1:26.12
▲ 10.48
1:20.16
▲ 5.96
1:08.02
▲ 12.14
1:06.20
▲ 1.82
1:08.99
▼ 2.79
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1:05.39
▲ 3.60
200 Breast SCY
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—
—
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2:50.81
2:27.69
▲ 23.12
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2:29.11
▼ 1.42
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50 Fly SCY
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46.77
36.06
▲ 10.71
31.77
▲ 4.29
31.40
▲ 0.37
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100 Fly SCY
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1:20.96
1:12.28
▲ 8.68
1:06.76
▲ 5.52
1:04.93
▲ 1.83
57.32
▲ 7.61
54.38
▲ 2.94
52.69
▲ 1.69
52.03
▲ 0.66
51.88
▲ 0.15
200 Fly SCY
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2:38.23
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2:22.53
▲ 15.70
2:02.61
▲ 19.92
2:01.49
▲ 1.12
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100 IM SCY
1:52.23
1:42.31
▲ 9.92
1:24.46
▲ 17.85
1:13.87
▲ 10.59
1:10.94
▲ 2.93
1:09.38
▲ 1.56
1:02.02
▲ 7.36
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56.00
▲ 6.02
57.48
▼ 1.48
59.85
▼ 2.37
200 IM SCY
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3:01.75
2:35.73
▲ 26.02
2:33.92
▲ 1.81
2:17.95
▲ 15.97
2:07.60
▲ 10.35
2:02.92
▲ 4.68
2:00.31
▲ 2.61
1:58.45
▲ 1.86
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400 IM SCY
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5:06.55
4:38.59
▲ 27.96
4:45.48
▼ 6.89
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4:33.34
▲ 12.14
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Improvement<0.5s0.5–2s2–5s5s+Slower
📊 All Attempts by Event
Chronological history of every recorded swim. Click an event to expand its attempt list.