Swimmer profile
Grey Duncan
Male17-18Marlins Of RaleighNC · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
50 Free LCM
27.52
27.00
▲ 0.52
27.19
▼ 0.19
26.96
▲ 0.23
100 Free LCM
1:00.40
59.73
▲ 0.67
58.53
▲ 1.20
58.35
▲ 0.18
200 Free LCM
2:11.34
2:09.14
▲ 2.20
2:06.39
▲ 2.75
2:09.35
▼ 2.96
400 Free LCM
4:40.66
4:32.91
▲ 7.75
4:27.72
▲ 5.19
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800 Free LCM
—
—
9:20.82
—
1500 Free LCM
—
—
17:52.86
—
100 Back LCM
1:15.20
1:12.42
▲ 2.78
1:08.82
▲ 3.60
1:09.00
▼ 0.18
200 Back LCM
2:40.64
2:37.04
▲ 3.60
2:33.61
▲ 3.43
2:33.47
▲ 0.14
100 Breast LCM
1:32.34
1:23.81
▲ 8.53
1:19.84
▲ 3.97
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100 Fly LCM
1:08.06
1:06.19
▲ 1.87
1:02.78
▲ 3.41
1:02.49
▲ 0.29
200 Fly LCM
—
2:30.72
2:18.95
▲ 11.77
2:26.25
▼ 7.30
200 IM LCM
2:37.29
2:32.24
▲ 5.05
2:24.70
▲ 7.54
2:26.03
▼ 1.33
400 IM LCM
—
—
5:09.25
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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.