Swimmer profile
Jack Birch
Male13-14FASTIN · CENTRAL
SeasonUSA Swimming season runs Sept – Aug
Event
2020–21
2021–22
2022–23
2023–24
2024–25
2025–26
50 Free LCM
52.50
44.68
▲ 7.82
39.39
▲ 5.29
34.55
▲ 4.84
31.24
▲ 3.31
29.80
▲ 1.44
100 Free LCM
2:05.06
1:43.88
▲ 21.18
1:28.11
▲ 15.77
1:14.62
▲ 13.49
1:10.40
▲ 4.22
1:04.58
▲ 5.82
200 Free LCM
—
3:42.62
3:16.01
▲ 26.61
—
2:29.82
▲ 46.19
2:16.97
▲ 12.85
400 Free LCM
—
—
6:59.80
6:11.19
▲ 48.61
5:19.02
▲ 52.17
5:04.49
▲ 14.53
50 Back LCM
—
51.26
45.86
▲ 5.40
43.25
▲ 2.61
—
37.15
▲ 6.10
100 Back LCM
2:34.70
1:51.73
▲ 42.97
1:38.08
▲ 13.65
1:31.17
▲ 6.91
1:26.22
▲ 4.95
1:17.87
▲ 8.35
200 Back LCM
—
—
—
—
2:57.94
2:41.08
▲ 16.86
50 Breast LCM
1:34.90
1:07.75
▲ 27.15
1:00.32
▲ 7.43
52.58
▲ 7.74
—
—
100 Breast LCM
—
2:31.60
—
1:52.31
▲ 39.29
1:47.43
▲ 4.88
1:37.97
▲ 9.46
200 Breast LCM
—
—
—
—
3:42.85
—
50 Fly LCM
1:20.21
1:05.61
▲ 14.60
—
38.63
▲ 26.98
—
—
100 Fly LCM
—
2:58.49
—
1:34.14
▲ 84.35
1:25.85
▲ 8.29
1:15.46
▲ 10.39
200 Fly LCM
—
—
—
—
—
2:48.37
200 IM LCM
—
4:25.18
—
3:16.74
▲ 68.44
3:05.26
▲ 11.48
2:39.52
▲ 25.74
400 IM LCM
—
—
—
—
—
5:52.43
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.