Swimmer profile
Hailey Ko
Female15-16Metro Area Life TimeNJ · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2018–19
2021–22
2022–23
2023–24
2024–25
50 Free LCM
56.43
34.58
▲ 21.85
31.56
▲ 3.02
30.98
▲ 0.58
30.55
▲ 0.43
100 Free LCM
—
1:17.48
1:12.74
▲ 4.74
1:10.99
▲ 1.75
1:10.97
▲ 0.02
200 Free LCM
—
3:02.51
2:58.20
▲ 4.31
—
—
50 Back LCM
1:01.34
41.81
▲ 19.53
39.00
▲ 2.81
38.45
▲ 0.55
—
100 Back LCM
—
1:33.16
1:30.10
▲ 3.06
1:22.17
▲ 7.93
1:23.42
▼ 1.25
50 Breast LCM
—
43.62
—
—
—
100 Breast LCM
—
1:41.39
1:38.49
▲ 2.90
1:31.84
▲ 6.65
—
50 Fly LCM
—
34.45
32.53
▲ 1.92
34.07
▼ 1.54
—
100 Fly LCM
—
1:27.83
1:27.27
▲ 0.56
—
—
200 IM LCM
—
3:14.10
3:12.64
▲ 1.46
—
2:54.79
▲ 17.85
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.