Swimmer profile
Bailey Koo
Male15-16Bolles School SharksFL · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2018–19
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
35.70
30.39
▲ 5.31
27.43
▲ 2.96
26.26
▲ 1.17
25.42
▲ 0.84
25.18
▲ 0.24
24.81
▲ 0.37
100 Free LCM
1:18.86
1:08.05
▲ 10.81
1:00.80
▲ 7.25
56.46
▲ 4.34
55.60
▲ 0.86
55.68
▼ 0.08
55.75
▼ 0.07
200 Free LCM
3:01.69
2:37.09
▲ 24.60
2:25.99
▲ 11.10
2:06.16
▲ 19.83
2:05.58
▲ 0.58
2:06.83
▼ 1.25
2:06.66
▲ 0.17
400 Free LCM
—
—
—
4:55.69
—
—
—
50 Back LCM
43.29
36.80
▲ 6.49
31.47
▲ 5.33
29.12
▲ 2.35
30.12
▼ 1.00
28.66
▲ 1.46
28.64
▲ 0.02
100 Back LCM
1:33.63
1:21.91
▲ 11.72
1:09.76
▲ 12.15
1:05.35
▲ 4.41
1:03.53
▲ 1.82
1:04.97
▼ 1.44
1:03.29
▲ 1.68
200 Back LCM
—
—
—
2:30.53
—
—
—
50 Breast LCM
—
—
39.92
—
—
—
—
100 Breast LCM
—
—
—
1:23.91
1:19.79
▲ 4.12
1:18.59
▲ 1.20
1:14.39
▲ 4.20
200 Breast LCM
—
—
—
—
—
2:53.78
—
50 Fly LCM
42.45
35.43
▲ 7.02
30.83
▲ 4.60
—
30.02
▲ 0.81
28.48
▲ 1.54
27.88
▲ 0.60
100 Fly LCM
—
—
—
1:08.24
1:06.61
▲ 1.63
1:03.49
▲ 3.12
1:03.19
▲ 0.30
200 Fly LCM
—
—
—
2:52.46
—
2:34.72
▲ 17.74
—
200 IM LCM
—
—
2:41.19
2:30.96
▲ 10.23
2:30.16
▲ 0.80
—
2:23.19
▲ 6.97
400 IM LCM
—
—
—
—
5:26.91
—
—
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.