Swimmer profile
Zach Nelsen
Male15-16Central Arkansas Swim ClubAR · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
1:04.21
50.34
▲ 13.87
45.91
▲ 4.43
44.20
▲ 1.71
31.97
▲ 12.23
33.19
▼ 1.22
31.72
▲ 1.47
28.97
▲ 2.75
27.66
▲ 1.31
26.38
▲ 1.28
100 Free LCM
2:26.61
1:49.64
▲ 36.97
1:42.33
▲ 7.31
1:33.41
▲ 8.92
1:15.21
▲ 18.20
1:11.71
▲ 3.50
1:08.47
▲ 3.24
1:03.51
▲ 4.96
1:00.40
▲ 3.11
58.86
▲ 1.54
200 Free LCM
—
3:46.85
3:33.75
▲ 13.10
3:18.91
▲ 14.84
2:39.45
▲ 39.46
2:31.70
▲ 7.75
2:26.50
▲ 5.20
2:16.15
▲ 10.35
2:10.63
▲ 5.52
2:07.88
▲ 2.75
400 Free LCM
—
—
7:41.93
—
5:31.37
▲ 130.56
5:17.43
▲ 13.94
4:58.23
▲ 19.20
4:40.23
▲ 18.00
4:32.62
▲ 7.61
4:31.91
▲ 0.71
800 Free LCM
—
—
—
—
11:11.33
11:02.06
▲ 9.27
10:32.96
▲ 29.10
9:40.34
▲ 52.62
—
9:32.92
▲ 7.42
1500 Free LCM
—
—
—
—
21:18.58
20:40.72
▲ 37.86
19:45.03
▲ 55.69
18:18.09
▲ 86.94
18:03.69
▲ 14.40
18:24.45
▼ 20.76
50 Back LCM
1:13.77
1:00.42
▲ 13.35
55.98
▲ 4.44
50.34
▲ 5.64
43.90
▲ 6.44
39.55
▲ 4.35
—
34.96
▲ 4.59
33.97
▲ 0.99
32.39
▲ 1.58
100 Back LCM
2:43.38
2:02.77
▲ 40.61
2:07.90
▼ 5.13
1:46.28
▲ 21.62
1:30.91
▲ 15.37
1:24.02
▲ 6.89
1:21.47
▲ 2.55
1:14.56
▲ 6.91
1:10.67
▲ 3.89
1:07.58
▲ 3.09
200 Back LCM
—
—
—
—
3:07.94
2:53.71
▲ 14.23
2:48.76
▲ 4.95
2:31.73
▲ 17.03
2:28.37
▲ 3.36
2:24.33
▲ 4.04
50 Breast LCM
1:26.00
1:08.25
▲ 17.75
1:01.75
▲ 6.50
57.06
▲ 4.69
50.48
▲ 6.58
43.74
▲ 6.74
—
38.89
▲ 4.85
35.62
▲ 3.27
33.86
▲ 1.76
100 Breast LCM
—
2:13.15
2:13.62
▼ 0.47
2:06.74
▲ 6.88
1:47.55
▲ 19.19
1:35.42
▲ 12.13
1:33.33
▲ 2.09
1:25.09
▲ 8.24
1:19.95
▲ 5.14
1:17.68
▲ 2.27
200 Breast LCM
—
—
—
—
3:41.60
3:28.10
▲ 13.50
3:13.97
▲ 14.13
3:01.58
▲ 12.39
2:55.95
▲ 5.63
2:53.03
▲ 2.92
50 Fly LCM
—
—
1:11.86
59.28
▲ 12.58
46.40
▲ 12.88
40.66
▲ 5.74
—
—
32.43
▲ 8.23
30.16
▲ 2.27
100 Fly LCM
—
—
—
—
—
1:40.78
—
—
1:12.48
▲ 28.30
1:14.40
▼ 1.92
200 IM LCM
—
—
—
3:49.60
3:14.53
▲ 35.07
2:56.82
▲ 17.71
2:49.34
▲ 7.48
2:33.64
▲ 15.70
2:31.05
▲ 2.59
2:26.05
▲ 5.00
400 IM LCM
—
—
—
—
—
6:21.67
5:55.50
▲ 26.17
5:25.46
▲ 30.04
5:29.25
▼ 3.79
5:13.28
▲ 15.97
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.