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
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
25 Free SCY
—
—
—
—
—
—
—
13.08
12.24
▲ 0.84
11.04
▲ 1.20
10.70
▲ 0.34
50 Free SCY
59.03
50.72
▲ 8.31
43.37
▲ 7.35
39.01
▲ 4.36
34.55
▲ 4.46
32.72
▲ 1.83
30.04
▲ 2.68
28.17
▲ 1.87
25.85
▲ 2.32
23.80
▲ 2.05
23.38
▲ 0.42
100 Free SCY
—
1:50.87
1:35.83
▲ 15.04
1:27.38
▲ 8.45
1:16.94
▲ 10.44
1:10.39
▲ 6.55
1:06.08
▲ 4.31
1:02.03
▲ 4.05
55.85
▲ 6.18
53.53
▲ 2.32
51.44
▲ 2.09
200 Free SCY
—
3:46.24
3:21.16
▲ 25.08
3:06.09
▲ 15.07
2:42.57
▲ 23.52
2:32.08
▲ 10.49
2:18.28
▲ 13.80
2:11.62
▲ 6.66
2:01.00
▲ 10.62
1:55.61
▲ 5.39
1:52.06
▲ 3.55
500 Free SCY
—
—
9:07.09
8:12.08
▲ 55.01
7:02.06
▲ 70.02
6:31.31
▲ 30.75
6:01.45
▲ 29.86
5:38.89
▲ 22.56
5:20.14
▲ 18.75
5:10.35
▲ 9.79
4:56.36
▲ 13.99
1000 Free SCY
—
—
—
—
—
13:45.76
12:11.44
▲ 94.32
11:46.47
▲ 24.97
11:05.12
▲ 41.35
10:48.70
▲ 16.42
10:28.22
▲ 20.48
1650 Free SCY
—
—
—
—
—
23:33.86
20:47.33
▲ 166.53
19:28.25
▲ 79.08
18:24.50
▲ 63.75
18:00.03
▲ 24.47
17:18.10
▲ 41.93
25 Back SCY
—
—
—
—
—
—
—
16.31
14.78
▲ 1.53
13.56
▲ 1.22
12.94
▲ 0.62
50 Back SCY
1:13.26
1:02.45
▲ 10.81
52.01
▲ 10.44
45.90
▲ 6.11
41.23
▲ 4.67
38.11
▲ 3.12
34.65
▲ 3.46
34.19
▲ 0.46
31.51
▲ 2.68
28.45
▲ 3.06
27.40
▲ 1.05
100 Back SCY
—
2:05.16
1:49.16
▲ 16.00
1:36.30
▲ 12.86
1:29.34
▲ 6.96
1:22.04
▲ 7.30
1:14.56
▲ 7.48
1:12.21
▲ 2.35
1:04.87
▲ 7.34
1:00.81
▲ 4.06
58.44
▲ 2.37
200 Back SCY
—
—
—
—
3:20.24
2:48.84
▲ 31.40
2:35.55
▲ 13.29
2:30.35
▲ 5.20
2:14.69
▲ 15.66
2:09.85
▲ 4.84
2:04.24
▲ 5.61
25 Breast SCY
—
—
—
—
—
—
—
16.90
15.64
▲ 1.26
14.04
▲ 1.60
13.07
▲ 0.97
50 Breast SCY
1:17.36
1:07.11
▲ 10.25
54.81
▲ 12.30
49.78
▲ 5.03
46.89
▲ 2.89
45.04
▲ 1.85
41.34
▲ 3.70
36.80
▲ 4.54
34.13
▲ 2.67
30.91
▲ 3.22
29.31
▲ 1.60
100 Breast SCY
—
2:32.66
2:00.03
▲ 32.63
1:51.56
▲ 8.47
1:39.93
▲ 11.63
1:37.82
▲ 2.11
1:29.92
▲ 7.90
1:20.97
▲ 8.95
1:12.59
▲ 8.38
1:10.51
▲ 2.08
1:06.26
▲ 4.25
200 Breast SCY
—
—
4:15.26
3:52.96
▲ 22.30
3:50.11
▲ 2.85
3:21.97
▲ 28.14
3:10.17
▲ 11.80
2:52.26
▲ 17.91
2:37.26
▲ 15.00
2:34.54
▲ 2.72
2:25.69
▲ 8.85
25 Fly SCY
—
—
—
—
—
—
—
15.02
14.32
▲ 0.70
12.64
▲ 1.68
11.90
▲ 0.74
50 Fly SCY
—
—
—
55.88
42.40
▲ 13.48
40.58
▲ 1.82
37.83
▲ 2.75
34.10
▲ 3.73
32.07
▲ 2.03
28.92
▲ 3.15
26.38
▲ 2.54
100 Fly SCY
—
—
—
—
1:43.13
1:32.49
▲ 10.64
—
1:19.03
▲ 13.46
1:09.74
▲ 9.29
1:03.91
▲ 5.83
1:03.40
▲ 0.51
100 IM SCY
—
2:12.69
1:51.53
▲ 21.16
1:40.33
▲ 11.20
1:27.92
▲ 12.41
1:22.07
▲ 5.85
1:16.78
▲ 5.29
1:12.29
▲ 4.49
1:05.93
▲ 6.36
1:02.10
▲ 3.83
57.89
▲ 4.21
200 IM SCY
—
—
—
—
3:00.96
2:54.95
▲ 6.01
2:43.04
▲ 11.91
2:31.32
▲ 11.72
2:19.62
▲ 11.70
2:14.06
▲ 5.56
2:05.78
▲ 8.28
400 IM SCY
—
—
—
—
—
6:25.38
5:51.00
▲ 34.38
5:16.85
▲ 34.15
4:52.13
▲ 24.72
4:41.99
▲ 10.14
4:28.08
▲ 13.91
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.