Swimmer profile
Hiro Nilsson
Male15-16Metroplex AquaticsNT · 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
43.74
32.72
▲ 11.02
29.63
▲ 3.09
26.09
▲ 3.54
24.45
▲ 1.64
24.23
▲ 0.22
23.91
▲ 0.32
100 Free SCY
1:38.72
1:11.51
▲ 27.21
1:02.30
▲ 9.21
56.33
▲ 5.97
53.63
▲ 2.70
53.01
▲ 0.62
53.79
▼ 0.78
200 Free SCY
—
2:33.75
2:10.15
▲ 23.60
2:02.65
▲ 7.50
1:54.85
▲ 7.80
1:57.08
▼ 2.23
1:51.57
▲ 5.51
500 Free SCY
—
—
5:41.09
5:21.39
▲ 19.70
5:04.59
▲ 16.80
5:09.86
▼ 5.27
4:58.60
▲ 11.26
1000 Free SCY
—
—
—
11:16.47
10:45.01
▲ 31.46
—
—
1650 Free SCY
—
—
—
19:52.55
17:28.75
▲ 143.80
—
—
50 Back SCY
50.01
39.57
▲ 10.44
34.13
▲ 5.44
30.10
▲ 4.03
28.77
▲ 1.33
—
—
100 Back SCY
—
1:29.67
1:13.85
▲ 15.82
1:04.67
▲ 9.18
1:00.92
▲ 3.75
1:00.69
▲ 0.23
—
200 Back SCY
—
—
—
2:19.03
2:11.65
▲ 7.38
2:12.88
▼ 1.23
—
50 Breast SCY
53.48
39.74
▲ 13.74
34.21
▲ 5.53
31.47
▲ 2.74
28.51
▲ 2.96
—
26.59
▲ 1.92
100 Breast SCY
2:08.61
1:33.84
▲ 34.77
1:14.22
▲ 19.62
1:09.73
▲ 4.49
1:02.04
▲ 7.69
1:02.18
▼ 0.14
58.59
▲ 3.59
200 Breast SCY
—
—
—
2:27.88
2:17.01
▲ 10.87
2:18.84
▼ 1.83
2:13.37
▲ 5.47
50 Fly SCY
—
34.55
29.96
▲ 4.59
28.36
▲ 1.60
26.00
▲ 2.36
—
24.52
▲ 1.48
100 Fly SCY
—
1:20.62
1:10.14
▲ 10.48
1:02.18
▲ 7.96
58.34
▲ 3.84
56.95
▲ 1.39
53.46
▲ 3.49
200 Fly SCY
—
—
—
2:18.14
2:09.10
▲ 9.04
—
—
100 IM SCY
—
1:23.55
1:07.77
▲ 15.78
1:03.03
▲ 4.74
57.00
▲ 6.03
—
—
200 IM SCY
3:59.06
2:53.30
▲ 65.76
2:23.23
▲ 30.07
2:13.38
▲ 9.85
2:04.66
▲ 8.72
2:04.67
▼ 0.01
2:01.23
▲ 3.44
400 IM SCY
—
—
—
4:52.40
4:32.65
▲ 19.75
4:32.14
▲ 0.51
4:25.59
▲ 6.55
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.