Swimmer profile
Justin O'Brien
Male15-16Whitewaters SwimmingNJ · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
33.78
30.86
▲ 2.92
28.42
▲ 2.44
27.10
▲ 1.32
26.20
▲ 0.90
100 Free LCM
1:16.65
1:08.18
▲ 8.47
1:00.69
▲ 7.49
58.59
▲ 2.10
57.65
▲ 0.94
200 Free LCM
—
2:29.52
2:10.50
▲ 19.02
2:06.75
▲ 3.75
2:07.17
▼ 0.42
400 Free LCM
—
—
4:38.01
4:29.09
▲ 8.92
—
800 Free LCM
—
—
—
9:07.56
—
1500 Free LCM
—
—
—
17:21.34
—
50 Back LCM
41.43
—
—
30.35
▲ 11.08
29.20
▲ 1.15
100 Back LCM
1:28.56
1:20.41
▲ 8.15
1:11.73
▲ 8.68
1:07.24
▲ 4.49
1:06.26
▲ 0.98
200 Back LCM
—
—
2:33.25
2:27.13
▲ 6.12
—
50 Breast LCM
47.95
—
—
—
34.06
▲ 13.89
100 Breast LCM
1:47.16
1:32.03
▲ 15.13
1:25.93
▲ 6.10
1:21.15
▲ 4.78
1:19.17
▲ 1.98
200 Breast LCM
—
3:19.09
—
—
2:50.11
▲ 28.98
50 Fly LCM
38.49
—
—
—
28.36
▲ 10.13
100 Fly LCM
—
1:21.00
1:09.31
▲ 11.69
1:06.85
▲ 2.46
1:05.66
▲ 1.19
200 Fly LCM
—
—
—
2:38.31
—
200 IM LCM
—
2:53.82
2:36.64
▲ 17.18
—
2:27.67
▲ 8.97
400 IM LCM
—
—
—
5:09.39
—
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.