Swimmer profile
Mackenzie Williams
Female17-18Aquawolves SwimmingCO · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
34.28
32.99
▲ 1.29
30.84
▲ 2.15
29.69
▲ 1.15
27.67
▲ 2.02
—
26.45
▲ 1.22
25.45
▲ 1.00
25.25
▲ 0.20
100 Free SCY
1:16.88
1:14.40
▲ 2.48
1:09.68
▲ 4.72
1:07.94
▲ 1.74
1:02.93
▲ 5.01
1:00.48
▲ 2.45
59.90
▲ 0.58
58.52
▲ 1.38
55.16
▲ 3.36
200 Free SCY
—
2:46.02
2:39.82
▲ 6.20
2:25.03
▲ 14.79
2:16.08
▲ 8.95
2:11.54
▲ 4.54
2:09.53
▲ 2.01
1:58.85
▲ 10.68
2:00.94
▼ 2.09
500 Free SCY
—
—
—
—
—
5:58.26
5:47.55
▲ 10.71
—
—
50 Back SCY
42.39
38.40
▲ 3.99
36.19
▲ 2.21
—
—
—
—
28.23
▲ 7.96
29.20
▼ 0.97
100 Back SCY
—
—
1:20.72
1:17.51
▲ 3.21
1:09.25
▲ 8.26
1:08.58
▲ 0.67
1:01.56
▲ 7.02
59.81
▲ 1.75
58.51
▲ 1.30
200 Back SCY
—
—
—
—
—
2:19.72
2:17.58
▲ 2.14
2:07.83
▲ 9.75
2:05.21
▲ 2.62
50 Breast SCY
51.80
47.17
▲ 4.63
—
40.57
▲ 6.60
—
—
—
31.82
▲ 8.75
31.83
▼ 0.01
100 Breast SCY
—
—
1:35.45
1:25.85
▲ 9.60
1:19.16
▲ 6.69
1:12.33
▲ 6.83
1:09.18
▲ 3.15
1:05.82
▲ 3.36
1:05.08
▲ 0.74
200 Breast SCY
—
—
—
—
2:48.71
2:37.35
▲ 11.36
2:30.23
▲ 7.12
2:24.15
▲ 6.08
2:19.99
▲ 4.16
50 Fly SCY
45.59
40.63
▲ 4.96
39.81
▲ 0.82
—
—
—
—
—
28.41
▲ 11.40
100 Fly SCY
—
—
—
—
1:19.74
—
—
—
1:01.41
▲ 18.33
100 IM SCY
1:36.53
1:27.15
▲ 9.38
1:21.81
▲ 5.34
1:20.56
▲ 1.25
—
—
—
1:04.21
▲ 16.35
—
200 IM SCY
—
—
—
—
2:38.01
2:23.11
▲ 14.90
2:15.92
▲ 7.19
2:09.60
▲ 6.32
2:08.28
▲ 1.32
400 IM SCY
—
—
—
—
—
—
—
—
4:47.52
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.