Swimmer profile
Hailey Ko
Female15-16Metro Area Life TimeNJ · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2019–20
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
43.45
—
27.16
▲ 16.29
26.77
▲ 0.39
26.58
▲ 0.19
26.48
▲ 0.10
100 Free SCY
—
1:15.48
1:02.19
▲ 13.29
1:00.30
▲ 1.89
1:00.46
▼ 0.16
59.44
▲ 1.02
200 Free SCY
—
—
2:25.03
—
2:17.65
▲ 7.38
2:16.66
▲ 0.99
50 Back SCY
—
36.09
34.41
▲ 1.68
32.95
▲ 1.46
30.86
▲ 2.09
30.17
▲ 0.69
100 Back SCY
—
1:25.70
1:14.73
▲ 10.97
1:10.93
▲ 3.80
1:08.66
▲ 2.27
—
200 Back SCY
—
—
—
—
2:31.83
—
50 Breast SCY
55.40
37.91
▲ 17.49
37.18
▲ 0.73
—
—
—
100 Breast SCY
—
1:27.77
1:23.50
▲ 4.27
1:18.63
▲ 4.87
—
—
50 Fly SCY
—
31.06
29.47
▲ 1.59
29.75
▼ 0.28
—
28.22
▲ 1.53
100 Fly SCY
—
1:17.45
1:09.11
▲ 8.34
1:07.58
▲ 1.53
1:04.50
▲ 3.08
—
100 IM SCY
—
1:16.65
1:10.71
▲ 5.94
—
—
1:07.64
▲ 3.07
200 IM SCY
—
—
2:45.06
2:40.18
▲ 4.88
2:29.37
▲ 10.81
—
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.