Swimmer profile
Declan Sederholm
Male10 & UnderHilltop Aquatic Swim TeamUT · WESTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2022–23
2023–24
2024–25
2025–26
25 Free SCY
21.60
—
—
—
50 Free SCY
48.63
40.99
▲ 7.64
35.11
▲ 5.88
32.66
▲ 2.45
100 Free SCY
1:41.95
1:29.67
▲ 12.28
1:18.83
▲ 10.84
1:12.03
▲ 6.80
200 Free SCY
—
3:36.79
2:47.05
▲ 49.74
2:46.90
▲ 0.15
500 Free SCY
—
—
—
7:04.48
50 Back SCY
1:00.78
47.11
▲ 13.67
40.09
▲ 7.02
40.44
▼ 0.35
100 Back SCY
1:44.75
1:46.12
▼ 1.37
1:23.48
▲ 22.64
1:25.89
▼ 2.41
200 Back SCY
—
—
3:19.79
—
50 Breast SCY
1:02.10
54.07
▲ 8.03
45.08
▲ 8.99
40.90
▲ 4.18
100 Breast SCY
2:06.97
1:57.91
▲ 9.06
1:37.05
▲ 20.86
1:30.19
▲ 6.86
200 Breast SCY
—
—
3:45.38
—
50 Fly SCY
—
1:05.35
54.73
▲ 10.62
44.65
▲ 10.08
100 Fly SCY
—
2:21.10
1:55.77
▲ 25.33
1:52.22
▲ 3.55
100 IM SCY
1:50.25
1:41.57
▲ 8.68
1:30.16
▲ 11.41
1:23.58
▲ 6.58
200 IM SCY
—
—
3:13.17
3:05.56
▲ 7.61
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.