Swimmer profile
Brandon Ko
Male11-12New Trier AquaticsIL · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free LCM
38.87
34.51
▲ 4.36
30.57
▲ 3.94
29.79
▲ 0.78
100 Free LCM
1:34.32
1:16.52
▲ 17.80
1:07.93
▲ 8.59
1:03.76
▲ 4.17
200 Free LCM
—
2:45.89
2:42.45
▲ 3.44
2:23.68
▲ 18.77
400 Free LCM
—
—
5:57.90
5:15.84
▲ 42.06
50 Back LCM
52.20
44.83
▲ 7.37
38.59
▲ 6.24
34.84
▲ 3.75
100 Back LCM
1:55.97
1:44.54
▲ 11.43
1:30.88
▲ 13.66
1:18.52
▲ 12.36
50 Breast LCM
53.24
46.58
▲ 6.66
41.16
▲ 5.42
37.95
▲ 3.21
100 Breast LCM
1:57.41
1:45.58
▲ 11.83
1:32.98
▲ 12.60
1:23.74
▲ 9.24
50 Fly LCM
51.66
40.36
▲ 11.30
35.95
▲ 4.41
32.49
▲ 3.46
100 Fly LCM
—
1:36.30
1:28.34
▲ 7.96
1:12.01
▲ 16.33
200 IM LCM
—
3:27.49
3:01.85
▲ 25.64
2:43.17
▲ 18.68
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.