Swimmer profile
Jonah Nathanson
Male17-18Crimson AquaticsNE · EASTERN
SeasonUSA Swimming season runs Sept – Aug
Event
2017–18
2018–19
2021–22
2022–23
2023–24
2024–25
50 Free LCM
37.53
33.08
▲ 4.45
27.35
▲ 5.73
27.68
▼ 0.33
27.54
▲ 0.14
25.94
▲ 1.60
100 Free LCM
1:26.32
1:13.68
▲ 12.64
1:00.62
▲ 13.06
59.08
▲ 1.54
59.34
▼ 0.26
58.25
▲ 1.09
200 Free LCM
—
2:41.20
2:10.31
▲ 30.89
2:04.09
▲ 6.22
2:01.56
▲ 2.53
1:58.99
▲ 2.57
400 Free LCM
—
—
—
4:41.64
4:41.08
▲ 0.56
4:38.87
▲ 2.21
50 Back LCM
43.63
37.32
▲ 6.31
—
28.36
▲ 8.96
29.40
▼ 1.04
27.29
▲ 2.11
100 Back LCM
1:32.71
1:20.54
▲ 12.17
1:05.85
▲ 14.69
59.52
▲ 6.33
59.26
▲ 0.26
58.96
▲ 0.30
200 Back LCM
—
2:54.62
2:25.80
▲ 28.82
2:08.63
▲ 17.17
2:08.25
▲ 0.38
2:08.45
▼ 0.20
50 Breast LCM
59.55
53.10
▲ 6.45
—
—
38.94
▲ 14.16
—
100 Breast LCM
2:03.52
1:47.15
▲ 16.37
1:28.05
▲ 19.10
—
1:24.83
▲ 3.22
—
200 Breast LCM
—
—
3:16.82
—
—
—
50 Fly LCM
51.17
43.34
▲ 7.83
—
—
29.50
▲ 13.84
—
100 Fly LCM
—
1:33.06
1:11.65
▲ 21.41
—
1:06.18
▲ 5.47
—
200 IM LCM
—
3:09.21
2:34.47
▲ 34.74
—
2:28.97
▲ 5.50
2:26.38
▲ 2.59
400 IM LCM
—
—
—
—
5:15.97
—
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.