Swimmer profile
MacKenzie Pierce
Female17-18Carson TigersharksPC · WESTERN
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
40.12
35.19
▲ 4.93
31.77
▲ 3.42
30.08
▲ 1.69
29.83
▲ 0.25
29.69
▲ 0.14
29.59
▲ 0.10
28.08
▲ 1.51
27.35
▲ 0.73
26.56
▲ 0.79
26.55
▲ 0.01
100 Free SCY
1:25.94
1:18.44
▲ 7.50
1:13.07
▲ 5.37
1:05.49
▲ 7.58
1:04.87
▲ 0.62
1:04.60
▲ 0.27
1:04.04
▲ 0.56
1:01.02
▲ 3.02
59.71
▲ 1.31
57.56
▲ 2.15
56.59
▲ 0.97
200 Free SCY
—
2:54.29
2:35.56
▲ 18.73
2:27.58
▲ 7.98
2:21.11
▲ 6.47
—
2:19.46
▲ 1.65
2:11.81
▲ 7.65
2:09.49
▲ 2.32
2:03.56
▲ 5.93
2:03.56
± 0.00
500 Free SCY
—
7:31.81
7:23.02
▲ 8.79
6:33.80
▲ 49.22
6:13.14
▲ 20.66
—
6:04.63
▲ 8.51
5:54.09
▲ 10.54
5:41.23
▲ 12.86
5:25.99
▲ 15.24
5:24.77
▲ 1.22
1000 Free SCY
—
—
—
—
—
13:16.88
12:18.00
▲ 58.88
12:16.03
▲ 1.97
—
—
—
1650 Free SCY
—
—
—
—
—
21:59.75
20:54.14
▲ 65.61
21:26.97
▼ 32.83
—
—
—
50 Back SCY
45.30
41.52
▲ 3.78
38.35
▲ 3.17
37.05
▲ 1.30
35.77
▲ 1.28
—
47.18
▼ 11.41
—
—
—
30.61
▲ 16.57
100 Back SCY
—
1:31.09
1:26.38
▲ 4.71
1:18.62
▲ 7.76
1:14.74
▲ 3.88
1:14.74
± 0.00
1:11.26
▲ 3.48
1:08.26
▲ 3.00
1:04.59
▲ 3.67
1:04.24
▲ 0.35
1:04.22
▲ 0.02
200 Back SCY
—
—
—
2:54.88
2:44.46
▲ 10.42
2:39.12
▲ 5.34
2:34.58
▲ 4.54
2:30.00
▲ 4.58
2:21.09
▲ 8.91
2:24.76
▼ 3.67
2:20.93
▲ 3.83
50 Breast SCY
59.11
49.85
▲ 9.26
47.16
▲ 2.69
44.26
▲ 2.90
44.66
▼ 0.40
—
—
—
—
—
—
100 Breast SCY
2:08.06
1:48.02
▲ 20.04
1:40.78
▲ 7.24
1:38.06
▲ 2.72
—
—
1:31.35
▲ 6.71
1:25.38
▲ 5.97
1:24.15
▲ 1.23
1:21.94
▲ 2.21
1:16.56
▲ 5.38
200 Breast SCY
—
—
—
3:29.45
—
—
3:05.47
▲ 23.98
3:02.23
▲ 3.24
3:04.52
▼ 2.29
2:59.64
▲ 4.88
2:48.95
▲ 10.69
50 Fly SCY
—
47.76
39.35
▲ 8.41
36.56
▲ 2.79
34.77
▲ 1.79
—
—
—
—
—
—
100 Fly SCY
—
—
—
1:19.46
1:15.70
▲ 3.76
—
1:09.42
▲ 6.28
1:03.77
▲ 5.65
1:02.30
▲ 1.47
1:01.06
▲ 1.24
1:01.69
▼ 0.63
200 Fly SCY
—
—
—
—
—
—
—
2:35.16
2:21.56
▲ 13.60
2:15.44
▲ 6.12
2:17.00
▼ 1.56
100 IM SCY
1:40.44
1:28.71
▲ 11.73
1:24.30
▲ 4.41
1:18.51
▲ 5.79
1:18.13
▲ 0.38
—
—
—
1:12.10
▲ 6.03
—
—
200 IM SCY
—
3:11.91
3:04.41
▲ 7.50
2:50.58
▲ 13.83
2:46.84
▲ 3.74
2:40.18
▲ 6.66
2:39.08
▲ 1.10
2:26.63
▲ 12.45
2:24.03
▲ 2.60
2:21.62
▲ 2.41
2:17.28
▲ 4.34
400 IM SCY
—
—
—
6:03.86
5:37.07
▲ 26.79
5:40.80
▼ 3.73
5:26.07
▲ 14.73
—
5:18.39
▲ 7.68
5:12.23
▲ 6.16
—
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.