Swimmer profile
Gus Koh
MaleOpen / SeniorNASA Wildcat AquaticsIL · CENTRALCollege athlete · Duke UniversityD1
SeasonUSA Swimming season runs Sept – Aug
Event
2015–16
2016–17
2017–18
2018–19
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
34.92
31.21
▲ 3.71
29.98
▲ 1.23
28.62
▲ 1.36
28.63
▼ 0.01
25.22
▲ 3.41
22.90
▲ 2.32
22.51
▲ 0.39
21.86
▲ 0.65
21.44
▲ 0.42
20.84
▲ 0.60
100 Free SCY
1:21.79
1:09.88
▲ 11.91
1:07.61
▲ 2.27
1:03.98
▲ 3.63
1:00.81
▲ 3.17
54.89
▲ 5.92
49.78
▲ 5.11
48.56
▲ 1.22
47.62
▲ 0.94
45.80
▲ 1.82
46.42
▼ 0.62
200 Free SCY
3:00.33
2:47.60
▲ 12.73
2:26.84
▲ 20.76
2:15.38
▲ 11.46
2:12.42
▲ 2.96
1:59.71
▲ 12.71
1:47.43
▲ 12.28
1:46.33
▲ 1.10
—
1:50.45
▼ 4.12
—
500 Free SCY
—
—
6:56.33
—
—
—
4:56.49
▲ 119.84
4:58.79
▼ 2.30
—
4:52.71
▲ 6.08
—
50 Back SCY
37.74
34.90
▲ 2.84
34.14
▲ 0.76
30.68
▲ 3.46
31.41
▼ 0.73
—
24.76
▲ 6.65
22.99
▲ 1.77
22.76
▲ 0.23
22.81
▼ 0.05
21.92
▲ 0.89
100 Back SCY
1:23.40
1:16.99
▲ 6.41
1:14.01
▲ 2.98
1:09.03
▲ 4.98
1:09.13
▼ 0.10
1:00.96
▲ 8.17
54.68
▲ 6.28
50.30
▲ 4.38
48.97
▲ 1.33
48.90
▲ 0.07
48.06
▲ 0.84
200 Back SCY
—
—
2:38.92
—
2:27.53
▲ 11.39
2:15.82
▲ 11.71
1:59.73
▲ 16.09
1:53.54
▲ 6.19
1:49.40
▲ 4.14
1:48.47
▲ 0.93
1:47.96
▲ 0.51
50 Breast SCY
—
45.05
43.57
▲ 1.48
43.55
▲ 0.02
41.10
▲ 2.45
—
—
30.19
▲ 10.91
—
25.20
▲ 4.99
—
100 Breast SCY
—
1:36.86
—
—
—
—
—
1:02.09
▲ 34.77
1:04.26
▼ 2.17
58.28
▲ 5.98
—
200 Breast SCY
—
—
—
—
—
—
2:36.50
—
—
—
—
50 Fly SCY
45.01
35.95
▲ 9.06
36.36
▼ 0.41
35.94
▲ 0.42
32.24
▲ 3.70
—
—
24.38
▲ 7.86
23.00
▲ 1.38
—
—
100 Fly SCY
1:42.92
1:29.96
▲ 12.96
1:22.95
▲ 7.01
1:24.19
▼ 1.24
—
—
1:01.42
▲ 22.77
51.90
▲ 9.52
49.92
▲ 1.98
48.58
▲ 1.34
49.99
▼ 1.41
200 Fly SCY
—
—
—
—
—
—
2:17.95
—
—
—
—
100 IM SCY
1:33.21
1:20.99
▲ 12.22
1:18.78
▲ 2.21
1:17.26
▲ 1.52
1:11.48
▲ 5.78
—
—
58.35
▲ 13.13
—
—
—
200 IM SCY
—
2:52.48
2:49.56
▲ 2.92
2:52.00
▼ 2.44
2:34.19
▲ 17.81
2:18.64
▲ 15.55
2:12.05
▲ 6.59
—
2:00.94
▲ 11.11
—
1:53.12
▲ 7.82
400 IM SCY
—
—
—
—
—
—
4:21.97
4:20.68
▲ 1.29
—
—
—
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.