Swimmer profile
Greydon Pieroni
Male17-18Duneland Swim ClubIN · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
37.71
33.23
▲ 4.48
31.44
▲ 1.79
28.58
▲ 2.86
27.07
▲ 1.51
26.18
▲ 0.89
100 Free LCM
1:22.30
1:12.62
▲ 9.68
1:08.28
▲ 4.34
1:03.84
▲ 4.44
57.14
▲ 6.70
56.42
▲ 0.72
200 Free LCM
3:05.83
2:42.55
▲ 23.28
2:32.63
▲ 9.92
2:28.56
▲ 4.07
2:08.16
▲ 20.40
2:02.76
▲ 5.40
400 Free LCM
—
—
5:13.37
—
—
—
50 Back LCM
46.17
—
—
—
31.75
▲ 14.42
29.88
▲ 1.87
100 Back LCM
1:38.16
1:22.33
▲ 15.83
1:18.63
▲ 3.70
1:12.27
▲ 6.36
1:08.06
▲ 4.21
1:01.81
▲ 6.25
200 Back LCM
—
—
—
2:44.72
2:27.12
▲ 17.60
—
50 Breast LCM
53.42
—
47.83
▲ 5.59
—
40.09
▲ 7.74
—
100 Breast LCM
—
1:41.83
1:42.12
▼ 0.29
—
1:25.70
▲ 16.42
—
200 Breast LCM
—
—
3:33.40
—
—
—
50 Fly LCM
45.40
36.90
▲ 8.50
33.02
▲ 3.88
—
27.81
▲ 5.21
26.32
▲ 1.49
100 Fly LCM
—
—
1:12.77
1:08.26
▲ 4.51
59.60
▲ 8.66
57.68
▲ 1.92
200 Fly LCM
—
—
—
—
2:30.58
2:12.33
▲ 18.25
200 IM LCM
—
—
2:45.11
2:37.06
▲ 8.05
2:37.51
▼ 0.45
2:27.43
▲ 10.08
400 IM LCM
—
—
6:03.12
5:46.39
▲ 16.73
—
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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.