Swimmer profile
Mckenzie Osterbrock
Female11-12Chattahoochee Gold Swim ClubGA · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
1:04.68
51.30
▲ 13.38
43.62
▲ 7.68
41.46
▲ 2.16
35.77
▲ 5.69
100 Free LCM
2:28.53
2:03.81
▲ 24.72
1:33.58
▲ 30.23
1:31.20
▲ 2.38
1:16.81
▲ 14.39
200 Free LCM
—
4:19.53
3:13.07
▲ 66.46
3:12.76
▲ 0.31
2:47.54
▲ 25.22
400 Free LCM
—
—
—
6:45.26
5:47.91
▲ 57.35
800 Free LCM
—
—
—
—
12:36.95
50 Back LCM
59.81
51.54
▲ 8.27
44.51
▲ 7.03
43.29
▲ 1.22
39.54
▲ 3.75
100 Back LCM
2:24.73
2:00.50
▲ 24.23
1:40.37
▲ 20.13
1:32.23
▲ 8.14
1:25.43
▲ 6.80
200 Back LCM
—
—
—
—
2:58.77
50 Breast LCM
1:34.29
1:04.19
▲ 30.10
57.60
▲ 6.59
51.93
▲ 5.67
47.17
▲ 4.76
100 Breast LCM
—
2:29.42
2:18.10
▲ 11.32
2:00.42
▲ 17.68
1:42.81
▲ 17.61
200 Breast LCM
—
—
—
—
3:36.00
50 Fly LCM
—
1:08.77
57.05
▲ 11.72
51.49
▲ 5.56
49.16
▲ 2.33
100 Fly LCM
—
—
—
2:03.32
1:54.66
▲ 8.66
200 IM LCM
—
—
—
—
3:12.09
400 IM LCM
—
—
—
—
6:50.31
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.