Swimmer profile
Zac Ng
Male17-18NOVA of Virginia Aquatics, IncVA · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
50 Free LCM
40.71
35.39
▲ 5.32
32.37
▲ 3.02
30.28
▲ 2.09
28.41
▲ 1.87
28.27
▲ 0.14
27.22
▲ 1.05
100 Free LCM
1:38.10
1:19.45
▲ 18.65
1:09.71
▲ 9.74
1:05.94
▲ 3.77
1:01.19
▲ 4.75
1:00.58
▲ 0.61
58.94
▲ 1.64
200 Free LCM
—
2:58.09
2:29.45
▲ 28.64
2:21.19
▲ 8.26
2:10.22
▲ 10.97
2:17.04
▼ 6.82
2:04.94
▲ 12.10
400 Free LCM
—
6:13.05
5:15.98
▲ 57.07
4:59.50
▲ 16.48
4:35.15
▲ 24.35
4:35.76
▼ 0.61
4:23.35
▲ 12.41
800 Free LCM
—
—
—
10:23.37
9:36.63
▲ 46.74
9:14.16
▲ 22.47
9:13.04
▲ 1.12
1500 Free LCM
—
—
—
19:33.89
17:54.01
▲ 99.88
17:52.36
▲ 1.65
17:56.10
▼ 3.74
50 Back LCM
45.40
38.56
▲ 6.84
36.46
▲ 2.10
—
—
—
—
100 Back LCM
1:38.62
1:30.70
▲ 7.92
1:17.24
▲ 13.46
1:16.78
▲ 0.46
1:09.09
▲ 7.69
1:12.28
▼ 3.19
1:09.40
▲ 2.88
200 Back LCM
—
—
2:47.33
2:38.48
▲ 8.85
2:29.05
▲ 9.43
2:33.37
▼ 4.32
2:28.02
▲ 5.35
50 Breast LCM
57.23
48.32
▲ 8.91
42.18
▲ 6.14
—
—
36.25
▲ 5.93
33.39
▲ 2.86
100 Breast LCM
—
1:43.96
—
1:21.51
▲ 22.45
1:16.71
▲ 4.80
1:16.60
▲ 0.11
1:13.33
▲ 3.27
200 Breast LCM
—
—
3:17.44
3:00.25
▲ 17.19
2:51.96
▲ 8.29
2:41.22
▲ 10.74
2:38.93
▲ 2.29
50 Fly LCM
57.63
43.72
▲ 13.91
35.67
▲ 8.05
—
32.95
▲ 2.72
31.69
▲ 1.26
—
100 Fly LCM
—
1:49.05
1:25.17
▲ 23.88
—
1:10.97
▲ 14.20
1:12.18
▼ 1.21
—
200 Fly LCM
—
—
—
—
—
2:46.07
—
200 IM LCM
4:00.11
3:21.43
▲ 38.68
2:48.57
▲ 32.86
2:41.08
▲ 7.49
2:29.52
▲ 11.56
2:25.47
▲ 4.05
2:19.62
▲ 5.85
400 IM LCM
—
—
—
—
5:13.98
—
5:17.85
▼ 3.87
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.