Swimmer profile
Hiro Nilsson
Male15-16Metroplex AquaticsNT · SOUTHERN
SeasonUSA Swimming season runs Sept – Aug
Event
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
34.36
32.28
▲ 2.08
28.82
▲ 3.46
28.35
▲ 0.47
27.10
▲ 1.25
—
100 Free LCM
1:14.13
1:10.03
▲ 4.10
1:03.66
▲ 6.37
1:00.60
▲ 3.06
59.96
▲ 0.64
—
200 Free LCM
2:49.03
2:27.29
▲ 21.74
2:14.71
▲ 12.58
2:12.52
▲ 2.19
2:13.07
▼ 0.55
—
400 Free LCM
5:27.83
5:07.93
▲ 19.90
4:41.93
▲ 26.00
4:38.78
▲ 3.15
4:35.11
▲ 3.67
—
1500 Free LCM
—
—
—
18:51.66
—
—
50 Back LCM
40.68
39.14
▲ 1.54
35.21
▲ 3.93
—
—
—
100 Back LCM
1:27.98
1:23.75
▲ 4.23
1:15.02
▲ 8.73
1:11.92
▲ 3.10
—
—
200 Back LCM
—
2:53.60
2:36.83
▲ 16.77
2:34.65
▲ 2.18
—
—
50 Breast LCM
42.29
37.99
▲ 4.30
35.53
▲ 2.46
—
—
31.56
▲ 3.97
100 Breast LCM
1:33.26
1:25.47
▲ 7.79
1:17.90
▲ 7.57
1:13.00
▲ 4.90
1:14.20
▼ 1.20
1:10.74
▲ 3.46
200 Breast LCM
—
3:03.90
2:45.59
▲ 18.31
2:43.39
▲ 2.20
—
2:45.46
▼ 2.07
50 Fly LCM
35.89
34.85
▲ 1.04
31.76
▲ 3.09
—
—
—
100 Fly LCM
1:22.04
1:18.20
▲ 3.84
1:13.19
▲ 5.01
1:06.72
▲ 6.47
1:06.22
▲ 0.50
—
200 Fly LCM
—
2:56.34
2:39.65
▲ 16.69
2:42.30
▼ 2.65
—
—
200 IM LCM
2:54.40
2:43.15
▲ 11.25
2:28.32
▲ 14.83
2:25.65
▲ 2.67
2:25.77
▼ 0.12
2:27.66
▼ 1.89
400 IM LCM
—
5:52.74
5:30.48
▲ 22.26
5:11.65
▲ 18.83
5:12.96
▼ 1.31
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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.