Swimmer profile
Grey Duncan
Male17-18Marlins Of RaleighNC · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2019–20
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free SCY
—
—
25.93
24.91
▲ 1.02
24.01
▲ 0.90
23.81
▲ 0.20
23.32
▲ 0.49
100 Free SCY
1:19.97
1:07.05
▲ 12.92
58.34
▲ 8.71
55.51
▲ 2.83
52.21
▲ 3.30
51.25
▲ 0.96
50.50
▲ 0.75
200 Free SCY
—
2:46.41
2:09.32
▲ 37.09
2:01.52
▲ 7.80
1:52.74
▲ 8.78
1:50.52
▲ 2.22
1:48.29
▲ 2.23
500 Free SCY
—
—
—
5:35.58
5:28.21
▲ 7.37
4:56.21
▲ 32.00
4:58.09
▼ 1.88
1000 Free SCY
—
—
—
—
—
10:18.82
10:16.66
▲ 2.16
1650 Free SCY
—
—
—
—
—
17:20.19
17:29.67
▼ 9.48
50 Back SCY
46.07
39.53
▲ 6.54
—
—
—
—
—
100 Back SCY
1:34.08
—
1:13.46
▲ 20.62
1:09.20
▲ 4.26
1:01.94
▲ 7.26
1:00.73
▲ 1.21
57.78
▲ 2.95
200 Back SCY
—
—
2:44.06
2:28.38
▲ 15.68
2:17.41
▲ 10.97
2:15.30
▲ 2.11
2:05.22
▲ 10.08
50 Breast SCY
48.11
45.32
▲ 2.79
—
—
—
—
—
100 Breast SCY
1:52.87
1:32.83
▲ 20.04
1:23.97
▲ 8.86
—
1:11.67
▲ 12.30
1:10.32
▲ 1.35
1:05.14
▲ 5.18
200 Breast SCY
—
—
3:01.46
—
—
2:36.98
▲ 24.48
2:29.17
▲ 7.81
50 Fly SCY
44.28
33.83
▲ 10.45
—
—
—
—
—
100 Fly SCY
—
—
1:05.13
1:02.34
▲ 2.79
58.74
▲ 3.60
56.67
▲ 2.07
53.74
▲ 2.93
200 Fly SCY
—
—
—
—
2:12.28
2:03.62
▲ 8.66
1:58.78
▲ 4.84
100 IM SCY
1:30.50
—
—
—
—
—
—
200 IM SCY
—
2:55.73
2:30.38
▲ 25.35
2:23.76
▲ 6.62
2:13.11
▲ 10.65
2:08.50
▲ 4.61
2:02.10
▲ 6.40
400 IM SCY
—
—
—
—
—
4:27.16
4:23.57
▲ 3.59
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.