Swimmer profile
Mackenzie Britt
Female17-18SwimAtlantaGA · SOUTHERN
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
52.48
46.29
▲ 6.19
35.39
▲ 10.90
33.99
▲ 1.40
32.37
▲ 1.62
31.44
▲ 0.93
31.55
▼ 0.11
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32.10
▼ 0.55
100 Free LCM
2:00.06
1:43.60
▲ 16.46
1:20.51
▲ 23.09
1:13.54
▲ 6.97
1:10.12
▲ 3.42
1:04.08
▲ 6.04
—
1:08.59
▼ 4.51
—
1:06.18
▲ 2.41
200 Free LCM
—
—
2:54.99
2:39.96
▲ 15.03
—
2:15.70
▲ 24.26
2:12.80
▲ 2.90
2:15.65
▼ 2.85
2:17.45
▼ 1.80
2:12.77
▲ 4.68
400 Free LCM
—
—
—
5:23.68
5:00.62
▲ 23.06
4:38.29
▲ 22.33
4:31.78
▲ 6.51
4:28.96
▲ 2.82
4:27.07
▲ 1.89
4:36.01
▼ 8.94
800 Free LCM
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—
—
—
—
9:27.74
9:14.06
▲ 13.68
9:11.18
▲ 2.88
9:04.62
▲ 6.56
9:22.06
▼ 17.44
1500 Free LCM
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—
—
—
—
18:01.18
17:45.42
▲ 15.76
17:22.59
▲ 22.83
17:18.37
▲ 4.22
17:49.42
▼ 31.05
50 Back LCM
1:02.50
53.59
▲ 8.91
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—
—
—
—
—
100 Back LCM
—
1:55.51
—
—
—
1:21.47
▲ 34.04
1:19.45
▲ 2.02
—
1:14.87
▲ 4.58
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200 Back LCM
—
—
—
—
—
—
—
2:39.27
—
2:35.96
▲ 3.31
50 Breast LCM
—
1:05.14
52.13
▲ 13.01
50.31
▲ 1.82
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—
—
—
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100 Breast LCM
—
2:17.78
1:58.82
▲ 18.96
1:46.54
▲ 12.28
1:36.09
▲ 10.45
1:35.76
▲ 0.33
1:30.77
▲ 4.99
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200 Breast LCM
—
—
—
—
3:31.38
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—
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50 Fly LCM
—
1:07.59
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—
—
—
—
—
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100 Fly LCM
—
—
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1:40.29
—
—
1:14.64
▲ 25.65
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200 IM LCM
—
—
3:25.79
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—
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2:44.80
▲ 40.99
2:47.64
▼ 2.84
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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.